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May 7, 2026
n today’s world, where product quality control and safety are non-negotiable for any business, GC-MS (Gas Chromatography-Mass Spectrometry) has emerged as one of the most powerful analytical tools available — giving businesses the confidence that their products are truly safe and up to standard.
In this article, we’ll break down what GC-MS is, why it matters across industries (especially food), and how ALS Testing Services (Thailand) can support your business with world-class testing expertise.
What Is GC-MS? A 4-Step Process Explained
GC-MS is an advanced chemical analysis technique that combines two powerful instruments:
GC (Gas Chromatography) — separates the individual compounds within a sample
MS (Mass Spectrometry) — identifies and measures each compound by analyzing its mass and chemical structure
Together, they allow scientists to identify and quantify substances in a sample with exceptional precision, speed, and detail.
Here’s how the process works, step by step:
Step 1: Sample Injection
The sample — prepared as a liquid or gas — is precisely injected into the GC instrument via an automated injector. A carrier gas then transports it into the separation column. Temperature and pressure are carefully controlled at this stage to preserve sample integrity and ensure accurate results.
Step 2: Compound Separation
Inside the GC column — a long, ultra-thin tube coated with a special material — individual compounds travel at different speeds depending on their chemical affinity to the coating and their boiling points. This causes each compound to exit the column at a different time, effectively separating the mixture into its individual components, one by one.
Step 3: ⚡ Compound Detection
Once separated, each compound enters the mass spectrometer, where its molecules are converted into ions through ionization (using electrical energy or light). The MS then measures each ion’s mass-to-charge ratio (m/z) — essentially a unique “fingerprint” for each substance.
Step 4: Data Analysis and Identification
The MS output is converted into a mass spectrum graph, which displays the distribution and intensity of ions. Analytical software then compares this spectrum against a large reference database of known chemical signatures to identify exactly what substances are present — and in what quantities. This data forms the foundation for evaluating product safety and quality.
Why GC-MS Matters: Key Benefits for Your Business
GC-MS plays a critical role across multiple industries — food & beverage, pharmaceuticals, environmental science, and chemicals. Here’s why it’s indispensable:
Highly Detailed Chemical and Contaminant Analysis
GC-MS can detect a wide range of complex organic compounds at extremely low concentration levels — from pesticide residues in food, to environmental toxins, to contaminants in medical products.
✅ Ensuring Product Quality and Safety
For businesses producing products that demand high safety standards — food, cosmetics, pharmaceuticals, or medical devices — GC-MS testing confirms that products are free from harmful substances, giving both you and your customers peace of mind.
Supporting Regulatory Compliance
Many countries and industries require strict testing for chemical residues and contaminants. GC-MS is the go-to tool for meeting these requirements, helping businesses avoid fines, product recalls, and regulatory penalties.
Gaining a Competitive Edge
Backed by precise analytical data, businesses can communicate product safety and quality to customers and partners with confidence — building lasting trust and sustainable market growth.
Why Choose ALS Testing for GC-MS?
High Accuracy with Modern, International-Standard Equipment
ALS Testing operates state-of-the-art GC-MS instruments under a rigorous quality management system certified to ISO/IEC 17025 — the international benchmark for testing and calibration laboratories. This means results that are accurate, reliable, and globally recognized.
End-to-End Service — From Sample to Report
Our full-service offering covers every step: professional sample receiving and preparation, advanced instrument analysis, and the delivery of clear, detailed, and easy-to-understand reports — so you can act on the findings immediately.
Wide Range of Sample Types Supported
Whether your samples are food, water, soil, air, cosmetics, or industrial products, our GC-MS service is built to handle them all — covering the diverse needs of businesses across many sectors.
In-Depth Expert Consultation
Our team of specialists doesn’t just hand you numbers — they walk you through the results, helping you understand the deeper insights so you can improve your production processes and quality controls effectively.
Test Your Products with World-Class GC-MS at ALS Testing Services
GC-MS is not just a laboratory technique — it’s a strategic business tool that helps reduce production risks, strengthen market confidence, and elevate product standards.
With proven experience and cutting-edge technology, ALS Testing Services (Thailand) is the trusted partner you need for comprehensive, internationally-accredited GC-MS testing.
Take your business to the next level of quality and safety — and step into a new standard of confidence with ALS Testing.
Read moreMay 7, 2026
As the automotive industry shifts into the electric vehicle (EV) age, countless components are being redesigned to be lighter, more energy-efficient, and capable of handling high-voltage electrical systems. Modern EVs are no longer built from steel alone — they incorporate aluminum alloys, mixed metals, plastics, and extensive electronics, all working together in increasingly complex structures.
But that complexity comes with a hidden risk: corrosion.
The Corrosion Challenge in Electric Vehicles
The multi-material construction of EVs creates several corrosion vulnerabilities, including:
Localized (pitting) corrosion on aluminum and alloy components
⚡ Galvanic corrosion at joints where dissimilar metals meet
Degradation of electrical connectors and busbars from salt mist and moisture
These risks are especially significant in high-humidity coastal areas, or heavily polluted urban environments, where corrosion can accelerate far faster than engineers anticipate — putting long-term user safety at risk.
The most vulnerable areas in an EV include:
Underbody structural panels
Battery packs and mounting brackets
Electrical connectors and wiring trays
Battery cooling pipes and heat dissipation plates
For both parts suppliers and original equipment manufacturers (OEMs), managing corrosion is not just about aesthetics — it directly affects safety, reliability, and long-term costs. This is where the Salt Spray Test becomes essential.
What Can a Salt Spray Test Tell You About EV Components?
The Salt Spray Test (also known as a Salt Fog Test) simulates a harsh environment of continuous salt mist and high humidity to assess how well a component resists corrosion. Here’s what it can reveal:
1. When Corrosion First Appears
One of the key metrics is recording exactly when rust or surface changes begin after the test starts. This data can be benchmarked against OEM specifications to determine pass or fail.
2. The Pattern of Corrosion
The test doesn’t just tell you whether corrosion occurs — it shows how it occurs. Engineers can identify:
Pitting on aluminum surfaces
Coating delamination (peeling protective layers)
Corrosion at dissimilar-metal junctions
These insights help manufacturers pinpoint whether the root cause lies in the component design, surface preparation, or the coating process itself.
3. ️ Coating System Effectiveness
For coated or painted components — such as battery brackets, underbody panels, or electric motor housings — the test verifies whether the protective coating actually works. Early peeling or rust signals a weakness in the coating formula or process that needs to be addressed.
Why Salt Spray Testing Is Critical to OEM Standards
The increased complexity and safety risks of EV structures have made corrosion testing a mandatory quality gate for OEM approval. Here’s why:
1. Reducing High-Voltage Electrical Safety Risks
Electrical connectors, busbars, and battery components are highly susceptible to oxide film formation and surface corrosion. Keeping these free from salt-induced corrosion helps prevent short circuits and abnormal heat buildup in the electrical system.
2. Ensuring Structural Reliability
Underbody frames, battery mounting assemblies, and load-bearing structures that rust prematurely can lose structural strength — with serious safety implications. Passing the Salt Spray Test to OEM standards confirms that components can withstand real-world conditions.
3. Meeting International Standards and Enabling Traceability
Global OEMs reference standards such as ASTM B117 and ISO 9227, alongside their own internal specifications. Certified lab results are critical for part approval before production begins at an industrial scale.
The data from Salt Spray Testing is not just a pass/fail verdict — it is a strategic tool that gives engineering and quality teams a clear direction for continuous improvement.
Test Your EV Components with ALS Testing
For manufacturers aiming to become suppliers to EV-era OEMs, taking Salt Spray Test data seriously can meaningfully reduce scrap rates, minimize warranty claims, and open doors to long-term business opportunities.
ALS Testing provides corrosion testing under strictly controlled Salt Spray conditions, fully aligned with international automotive industry standards — covering sample preparation, salt solution control, temperature management, and detailed reports that can be referenced directly with OEMs.
✅ Elevate your competitiveness in the global market with Salt Spray Testing from the expert team at ALS Testing — a key step toward confident OEM approval, today and into the future of electric mobility.
Interested in Salt Spray Testing services? Contact ALS Testing to learn how we can support your EV component qualification process.
Read moreMay 6, 2026
ESG Is No Longer Just a Trend — It Is a Business Imperative
Environmental, Social, and Governance (ESG) reporting has moved from a voluntary best practice to a core business requirement. Investors, regulators, customers, and the public now expect organizations to back their sustainability claims with data that can actually be verified.
For industrial organizations, one of the most critical — and often underestimated — environmental indicators is Volatile Organic Compounds (VOCs). These invisible chemical compounds touch all three pillars of ESG, making accurate VOCs analysis far more than a technical exercise.
What Are VOCs — and Why Do They Matter for ESG?
Volatile Organic Compounds (VOCs) are chemicals that evaporate easily at room temperature. They are released during manufacturing processes, fuel combustion, and a wide range of industrial activities — often without being seen or smelled until concentrations reach harmful levels.
Their relevance to ESG spans all three dimensions:
Table
ESG Pillar
How VOCs Connect
Environment
VOCs monitoring reflects how effectively an organization controls its air emissions and environmental impact
Social
Exposure to VOCs directly affects worker health and safety — a core social responsibility
Governance
Accurate, traceable VOCs reporting demonstrates organizational transparency and accountability
VOCs data is not just a technical concentration value. It is evidence of how seriously an organization takes its responsibility to people and the planet.
Accuracy Is Everything — Here Is Why
Getting VOCs analysis right requires two things working together: proper sample collection and laboratory-grade analysis.
Portable field instruments like PID detectors are useful for quick, on-site readings — but they cannot identify specific compounds or produce the defensible results required for formal ESG reporting.
For that, laboratory analysis is essential. The most widely used technologies include:
GC-MS (Gas Chromatography–Mass Spectrometry) — the gold standard for identifying and quantifying individual VOC compounds with precision
HSGC (Headspace Gas Chromatography) — optimized for analyzing VOCs in water samples
SPE (Solid Phase Extraction) — used to prepare soil and water samples before GC-MS analysis
But technology alone is not enough. The accuracy of results also depends on:
How samples are collected and preserved
The chain of custody maintained during transport
The laboratory’s internal quality control systems
Weak processes at any of these stages can produce misleading data — and in an ESG context, misleading data carries real consequences.
VOCs Across Three Environmental Media
VOCs do not stay in one place. They migrate through air, water, and soil — which means effective monitoring requires a tailored approach for each medium.
️ Air
Air samples are collected using sorbent tubes or continuous sampling methods, then analyzed by GC-MS to identify specific compounds and concentrations. VOCs air monitoring is essential for:
Controlling workplace air quality
Assessing emission levels in and around industrial facilities
Meeting occupational health and environmental regulations
Water
Because VOCs evaporate rapidly, water sampling demands airtight containers and careful handling to prevent loss before analysis. Using HSGC combined with GC-MS delivers precise results critical for:
Evaluating water quality near industrial sites
Assessing safety for consumption or discharge
Supporting environmental impact assessments
Soil
In areas with a history of industrial activity, multi-point soil sampling ensures comprehensive coverage. Samples undergo SPE preparation before GC-MS analysis, providing data essential for:
Long-term environmental risk assessment
Contamination source identification
Regulatory compliance and site remediation planning
The Laboratory’s Role in Building ESG Credibility
In the ESG framework — particularly under Environment and Governance — environmental data must be both accurate and traceable. This is where the laboratory becomes a strategic partner, not just a service provider.
A credible accredited laboratory delivers:
✅ Rigorous quality control at every stage of analysis ✅ Calibrated instruments maintained to international standards ✅ Systematic documentation that creates a clear audit trail ✅ Results that hold up — whether submitted to regulators, included in ESG reports, or shared with investors and partners
When VOCs data comes from a reliable, accredited source, it transforms from raw numbers into verifiable proof of environmental stewardship.
Data That Means Something
In the age of ESG, the numbers in your sustainability report are scrutinized more carefully than ever. They need to be:
Accurate — reflecting what is actually happening in your operations
Traceable — supported by documented methodology and chain of custody
Credible — produced by laboratories recognized locally and internationally
A concentration value is just a number. Verifiable, well-documented VOCs data is evidence — of accountability, of transparency, and of a genuine commitment to sustainability.
Organizations that invest in rigorous VOCs analysis are not just checking a compliance box. They are building the data foundation that ESG credibility requires.
Learn more about VOCs analysis services: www.alstesting.co.th/volatile-organic-compounds-vocs
Read moreMay 6, 2026
Why Chemical Testing Is the Foundation of Credible ESG Reporting
Numbers Only Matter If They Are Right
Every organization calculating its Carbon Footprint is working toward the same goal: an accurate, credible, and defensible picture of its greenhouse gas emissions. But here is the question most overlook —
How reliable is the data behind those numbers?
Carbon Footprint reporting, as defined by frameworks like the GHG Protocol and ISO 14064, is fundamentally a calculation. It takes Activity Data — fuel consumed, waste generated, refrigerants used — and multiplies it by established Emission Factors to estimate total greenhouse gas output.
The formula is standardized. The methodology is clear. But if the input data is inaccurate, even a perfectly executed calculation produces a misleading result.
This is exactly where chemical testing becomes essential.
What Is Chemical Testing — and What Does It Have to Do with Carbon?
Chemical testing is the process of collecting and analyzing samples from environmental media — air, water, soil, waste streams, and process gases — using standardized methods and equipment. The goal is to determine concentration, composition, and potential impact on the environment, human health, or regulatory compliance.
In the context of Carbon Footprint reporting, chemical testing is not about measuring carbon directly in a lab. Rather, it is about validating the quality of Activity Data — ensuring that what goes into the calculation actually reflects what is happening on the ground.
Carbon Footprint is the calculation. Chemical testing is what makes the inputs worth calculating.
Where Chemical Testing Makes a Real Difference
In complex industrial operations, relying on generic averages or assumptions introduces significant margin for error. Chemical analysis replaces those assumptions with real, site-specific data:
Table
Application
How It Improves Accuracy
Fuel Heating Value Analysis
Uses actual calorific value instead of generic averages
Stack Gas Measurement (CO₂, CH₄, N₂O)
Directly assesses combustion efficiency and emission rates
Wastewater COD Analysis
Calculates methane generation potential from treatment systems
❄️ Refrigerant Identification (HFCs, PFCs)
Ensures the correct Global Warming Potential (GWP) value is applied
Raw Material Composition Analysis
Supports accurate Scope 3 emission assessments
In each of these cases, chemical testing acts as a data verification layer — not replacing the Carbon Footprint calculation, but making the data that feeds it far more trustworthy.
Why Data Integrity Is Non-Negotiable
A Carbon Footprint report that earns stakeholder trust is not just mathematically correct — it is traceable, transparent, and verifiable. The factors that determine credibility go beyond the calculation itself:
✅ How Activity Data was collected and recorded
✅ Whether international standards are clearly referenced
✅ Internal quality control systems in place
✅ Transparency throughout the reporting process
Within the broader ESG framework — particularly on the environmental and governance dimensions — verifiable data is the bedrock of long-term credibility. Investors, regulators, customers, and partners are increasingly asking not just “What is your carbon footprint?” but “How do you know?”
More Than a Statistic — A Reflection of Who You Are
The figures in a Carbon Footprint report represent far more than emissions data. They are a statement of organizational accountability and transparency.
Choosing to ground your reporting in accurate, chemically verified data does two things at once:
Reduces the risk of reporting errors that could damage credibility or invite regulatory scrutiny
Builds a stronger foundation for long-term sustainability — one that holds up under audit, due diligence, and public disclosure
In an era where ESG performance is increasingly tied to business reputation and investment attractiveness, the quality of your data is the quality of your commitment.
The carbon numbers you report are only as strong as the data behind them. Make sure yours are built to last.
Learn more about ALS Testing’s Chemical Testing Services: https://www.alstesting.co.th/services/
Read moreMay 6, 2026
The Invisible Threat in Every Factory
Dust.
Fumes.
Chemical vapors.
They are present in nearly every manufacturing environment — and most of the time, you cannot see them.
As air pollution and industrial health concerns grow globally, workplace safety is no longer just a regulatory checkbox. Employees, business owners, and the public are paying closer attention to what workers breathe every day. Regulations are tightening. Standards are rising. And for good reason.
In many production processes, the real danger is not the accident you can see — it is the hazard you cannot.
Vapors released from solvents, paints, and adhesives
Fine dust and particles generated from grinding, cutting, or friction
Invisible residues and contaminants that accumulate on work surfaces over time
None of these cause immediate, dramatic symptoms. But prolonged exposure quietly damages the respiratory system, the nervous system, and overall health — often before anyone realizes there is a problem.
Factories that want to grow sustainably need tools that make these invisible risks visible. That is exactly what VOCs testing and FT-IR analysis are designed to do.
Two Tests, One Powerful Combination
VOCs Testing — What Is in the Air?
VOCs (Volatile Organic Compounds) testing measures the concentration of airborne organic chemicals in the workplace — production floors, enclosed processing areas, and anywhere chemical use is involved.
The results give factories clear, actionable intelligence:
Which areas carry the highest inhalation risk
When contamination levels spike above safe thresholds
Where to improve ventilation or adjust processes
Perhaps most importantly, having real numbers eliminates uncertainty. When employees ask “Is the air here safe?”, management can answer with data — not reassurances.
FT-IR Analysis — What Is That Dust?
FT-IR (Fourier Transform Infrared Spectroscopy) takes a different but equally important angle. Rather than measuring air quality, it identifies the chemical identity of solid particles, residues, and contamination found in the workplace.
FT-IR works by analyzing how a material absorbs infrared light — producing a unique chemical “fingerprint” for each substance. Even from a tiny sample, or from dust invisible to the naked eye, FT-IR can accurately identify:
Plastics, rubber, and resins
Fibers and polymer materials
Chemical residues and unknown contaminants
Knowing exactly what the dust is allows factories to:
Pinpoint the true source of contamination
Adjust production processes or switch to safer materials
Reduce product defects and production waste
Better Together
VOCs and FT-IR are highly effective individually — but together, they provide a complete picture.
Table
VOCs Testing
FT-IR Analysis
Focus
Air quality
Particle & residue identity
Answers
What are workers breathing?
What is this dust or contaminant?
Key Benefit
Health risk assessment
Root cause identification
When used in combination, factories gain insight into both the air their people breathe and the materials their processes produce — enabling smarter, more targeted improvements across health, safety, and production quality.
Long-Term Benefits That Go Beyond Compliance
Better Production Quality
When you know exactly where contamination comes from, you can control it. Fewer defects. More consistent output. Greater confidence from customers and partners.
Lower Operating Costs
Solving problems with precise data eliminates costly guesswork — less rework, fewer unplanned line stoppages, and less wasted raw material.
A Workforce That Trusts You
When employees see that air quality and contamination are being actively monitored, they feel valued — not overlooked. That trust translates into stronger engagement, fewer grievances, and lower turnover over time.
Audit-Ready, Every Day
VOCs and FT-IR results serve as verifiable, scientific documentation of systematic risk management — whether facing regulatory inspections, occupational health audits, or assessments from business partners and clients.
From Invisible Risk to Informed Action — with ALS Testing
Creating a truly safe workplace is not a one-time exercise. It is an ongoing commitment built on reliable data.
By combining VOCs and FT-IR testing, factories can transform hidden risks into actionable insights — enabling precise adjustments to ventilation systems, material choices, and work procedures that protect both people and processes.
ALS Testing — a globally accredited laboratory operating in Thailand — brings world-class VOCs and FT-IR testing to your doorstep. No overseas sample submissions. No complicated logistics. Just internationally standardized results that give your factory the clarity it needs to keep improving.
Because workplace safety should not be a policy on paper. It should be part of how your business grows.
Read moreMay 6, 2026
The Real Cost of Wrong Materials
In industrial and construction projects, quality failures rarely announce themselves immediately. By the time a problem surfaces — a coating that peels, a sealant that cracks, a polymer that fails under load — the damage is already done, and the cost to fix it is exponentially higher than it would have been to prevent it.
The most effective quality strategy is not inspection after the fact. It is verification at the source.
That is precisely where FT-IR (Fourier Transform Infrared Spectroscopy) plays a decisive role — as a powerful, science-backed first line of quality control.
What FT-IR Actually Does
FT-IR is an analytical technique that identifies the chemical structure of a material by measuring how it absorbs infrared light. Each material produces a unique spectral “fingerprint,” revealing:
What the material truly is — not just what it appears to be
What chemical groups it contains
Whether any chemical changes have occurred
It does not measure structural strength or load-bearing capacity. What it does — with speed and precision — is confirm that the material in your hands is exactly what it is supposed to be.
10 Ways FT-IR Strengthens First-Line QC
1. Confirm Material Identity Before Use
Is this epoxy, polyurethane, silicone, or something else entirely? FT-IR answers that question with certainty — preventing the wrong material from ever entering your process.
2. Filter Materials Before Expensive Testing
Mechanical and safety testing is time-consuming and costly. FT-IR acts as the first gate, ensuring only chemically verified materials move forward — saving both time and resources.
3. Track Quality Consistency Across Production Lots
The same product from different production batches is not always the same. FT-IR detects batch-to-batch variation, keeping quality consistent from project start to finish.
4. ⚠️ Detect Formula Changes or Unauthorized Substitutions
If a supplier changes raw materials, reduces key components, or delivers an off-spec formulation, FT-IR will reveal the chemical difference — clearly and objectively.
5. ️ Assess Material Condition, Not Just Type
FT-IR goes beyond identification. It can detect signs of thermal degradation, UV damage, or oxidation — providing early warning signals before a material fails in the field.
6. ️ Replace Guesswork with Science
Many materials look identical to the naked eye. FT-IR eliminates reliance on visual inspection or experience alone, replacing assumptions with hard analytical evidence.
7. Reduce the Long-Term Cost of Failure
Catching the wrong or degraded material at incoming inspection costs a fraction of what field failures, rework, or post-installation damage will demand. Prevention always pays.
8. Build a Traceable Quality Record
FT-IR results are documented, verifiable, and traceable — serving as reliable technical evidence in quality disputes and informed decision-making for engineers and management alike.
9. ⚡ Fast, Non-Destructive, and Non-Disruptive
Testing is rapid, requires minimal sample material, and does not interrupt production lines — making it perfectly suited for incoming inspection and routine spot checks.
10. A Smart First Step, Not the Final Word
FT-IR is a precision screening tool, not a replacement for structural or safety testing. By confirming chemical suitability first, it makes every subsequent test more targeted, more meaningful, and more cost-effective.
Where FT-IR Is Commonly Applied
FT-IR delivers strong results for any material with a defined chemical composition — particularly where materials look similar but perform very differently:
Table
Material Category
Why FT-IR Matters
Coatings & Anti-Corrosion Products
Verify formulation integrity before application
Construction Adhesives & Sealants
Confirm chemical type and detect substitution
Polymers, Rubber & Damping Components
Identify grade and detect degradation
Insulation, Foam & Plastics
Distinguish between visually similar materials
Know the Limits
FT-IR is a tool of precision — not a universal solution. It cannot replace structural load testing, crack detection, or engineering safety assessments. Those require dedicated mechanical and non-destructive testing methods. Used within its proper scope, however, FT-IR is one of the most efficient QC investments available.
Why ALS Testing
ALS Testing is an internationally accredited laboratory based in Thailand, delivering FT-IR analysis as part of a comprehensive, science-driven QC approach.
When materials enter the process already verified for chemical identity, condition, and conformance, the entire quality system performs better:
✅ Fewer surprises downstream
✅ More targeted advanced testing
✅ Stronger documentation for technical and commercial decisions
✅ Lower risk of costly late-stage failures
FT-IR with ALS Testing does not just check a box.
It changes the way organizations think about quality — from reactive to proactive, from assumption to evidence, from risk to confidence.
When first-line QC is right, everything that follows works better.
Read moreMay 6, 2026
ICE vs. EV: A New Kind of Risk
The shift from combustion engines (ICE) to electric vehicles (EV) changes more than the power source — it changes the entire risk profile.
ICE systems fail through mechanical wear — predictable, repairable.
EV systems fail through electrical faults and thermal instability — sudden, dangerous, and potentially irreversible.
Even a few microns of contamination can trigger a battery short circuit, leading to thermal runaway — and potentially fire or explosion.
Why ISO 16232 Now Matters for Safety
The updated VDA 19.1 (3rd Edition, 2025), developed by 40+ leading automotive companies, elevates ISO 16232 from a quality standard to a functional safety requirement, introducing:
Particle analysis below 50 microns
SEM/EDX inspection techniques
Standardized dry extraction methods
Failure assessment for battery and electronic components
How Contamination Causes EV Failures
In high-voltage EV systems (400–800V), small conductive particles can cause:
Short circuits
Electrical arcing
Insulation breakdown
Leakage currents
These failures occur without warning — making cleanliness a safety-critical design requirement, not just a quality checkpoint.
ICE vs. EV: Quick Comparison
Table
Factor
ICE
EV (High Voltage)
Main Risk
Mechanical wear
Short circuit / Thermal instability
Critical Particle Size
> 100 µm
< 50 µm
Primary Impact
Performance loss
Arcing, insulation failure
ISO 16232 Role
Quality standard
Functional safety standard
ISO 16232 in the EV Supply Chain
ISO 16232 is evolving from a measurement tool into a full process control framework:
Cleanliness limits tied to failure mechanisms
Integrated with PFMEA / DFMEA
Supported by real-time monitoring and traceability
The Road to Zero Contamination
To stay competitive, organizations should:
✅ Embed cleanliness into product design from day one ✅ Invest in SEM/EDX and real-time inspection tools ✅ Build data-driven process controls ✅ Train personnel and foster a quality-first culture
FAQ
Why are small particles more dangerous in EVs? High-voltage systems have lower insulation tolerance. Particles under 50 µm can instantly cause short circuits and trigger thermal runaway.
How does cleanliness relate to Functional Safety? Contamination can initiate electrical bridging and insulation failure — making it a direct concern under ISO 26262.
Where should organizations start? Define cleanliness requirements based on failure mechanisms, then integrate them into design, manufacturing, and inspection — supported by SEM/EDX and traceability systems.
What are the long-term benefits of compliance? Fewer recalls, reduced thermal and electrical failures, longer system lifespan, and stronger trust from OEM customers.
Read moreMay 6, 2026
Introduction
In the modern automotive industry, component precision and reliability are paramount — particularly with the growing adoption of intelligent braking systems, high-pressure fuel systems, and electric vehicles. One critical aspect often overlooked is technical cleanliness: the control of micron-level particles that can cause blockages, wear, and damage to critical systems, ultimately leading to costly product recalls.
Establishing a Cleanliness Lab aligned with Tier 1 Automotive standards is therefore not merely a compliance requirement — it is a strategic risk management initiative.
What is a Cleanliness Lab?
A Cleanliness Lab is a controlled laboratory facility designed to assess the cleanliness of automotive components through particle extraction and analysis, ensuring contamination levels remain within defined specifications.
For Tier 1 Suppliers, the lab functions as a quality gateway prior to OEM delivery — verifying product conformance, reducing rejection risk, and strengthening customer confidence. Applicable standards include ISO 16232 and VDA 19, both of which define systematic and reproducible testing methodologies. Organizations that meet these standards gain a competitive advantage within the global automotive supply chain.
Laboratory Infrastructure Requirements
Reliable test results depend on a well-designed facility. Key infrastructure elements include:
Cleanroom controlled to ISO Class 5–8
HEPA filtration system to minimize airborne particle levels
Positive pressure system to prevent external air ingress
Segregated zones for sample preparation, extraction, and analysis
One-way flow layout to minimize cross-contamination
Essential Equipment
Equipment
Function
Significance
Particle Extraction System
Extracts particles from test components
Core step of the testing process
Microscope
Analyzes particle size and morphology
Enables detailed characterization
Particle Counter
Quantifies particle count
Comparison against standard limits
Vacuum Filtration Unit
Filters test samples
Prepares samples for analysis
Laminar Flow Cabinet
Controls local environment
Reduces contamination risk
Standard Testing Workflow
The cleanliness testing process comprises five core steps:
Sample Collection
Particle Extraction
Filtration
Analysis
Reporting
To ensure process reliability and integrity, the following must also be in place:
Clearly defined Standard Operating Procedures (SOPs)
Blank testing for quality control verification
Process validation
Traceability systems and data integrity controls
Personnel Competency
Despite advances in technology, personnel remain the most critical factor in Cleanliness Lab quality assurance. Required competencies include laboratory instrument operation, particle analysis techniques, and a working knowledge of ISO and VDA standards. Organizations must maintain continuous training, competency assessments, and periodic skill reviews.
Human factors also represent a significant contamination risk — including improper gowning, deviation from SOPs, and inappropriate behavior within the cleanroom — all of which can directly compromise test accuracy and overall system reliability.
Development Challenges
Building a Cleanliness Lab presents several challenges:
Capital investment for cleanroom construction and specialized equipment procurement
Standard complexity requiring expert knowledge for accurate interpretation and implementation
Upstream process control — an unstable manufacturing process limits the effectiveness of laboratory testing alone
Organizations are advised to develop both manufacturing controls and laboratory capabilities concurrently to achieve sustainable Tier 1 compliance.
Future Outlook: Smart Cleanliness Lab
The next generation of cleanliness laboratories is evolving toward intelligent, automated systems, incorporating:
AI-powered particle analysis
Automated microscopy
Real-time data connectivity
Integration with manufacturing execution and quality management systems enables end-to-end quality control, reducing cycle time, improving result consistency, and supporting compliance with increasingly stringent industry standards.
From Compliance to Competitive Advantage
A Cleanliness Lab is not merely a testing facility — it is an integral component of a holistic quality management system, spanning product design, manufacturing, and delivery. Organizations that establish a fully compliant Cleanliness Lab will be well-positioned to meet OEM requirements, reduce long-term operational risk, and sustain competitiveness in the global automotive market.
Investment in a Cleanliness Lab is an investment in long-term business sustainability.
FAQ
Is a Cleanliness Lab required for all manufacturing facilities? Not universally — however, it is essential for high-precision or safety-critical components, particularly in electric vehicle, electronics, and stringent-cleanliness applications.
How should an organization begin? Conduct a Gap Analysis against ISO 16232 and VDA 19, then develop a structured implementation plan covering facility design, equipment, and process requirements.
What is the estimated budget? Costs range from hundreds of thousands to several million baht, depending on lab scale, technology scope, and target compliance level.
How long does implementation take? Typically 3–12 months, subject to organizational readiness and system complexity.
What are common implementation mistakes? Inadequate facility design, unclear SOPs, insufficient personnel training, and failure to address upstream process control — resulting in test outcomes that do not reflect real-world conditions.
Read moreApril 24, 2026
VOC Emissions · Salt Spray Corrosion · Thermal Testing · Interior Air Quality · VDA 278 · ISO 9227
ISO/IEC 17025 Accredited | Full Environmental Simulation Suite | OEM Standard Testing
The materials that make up a modern automobile are subjected to conditions that most materials would never encounter: temperature extremes from −40°C to +120°C and beyond; salt-laden road spray that attacks every exposed metal surface; UV radiation that degrades polymers and fades pigments; humid tropical heat that accelerates corrosion and swells seals; and the constant off-gassing requirements of interior materials that affect the air quality cabin occupants breathe every day.
Automotive materials testing, which encompasses VOC emissions analysis, corrosion testing, environmental simulation, thermal characterisation, and chemical content analysis, validates that materials and components survive these conditions and meet the specifications that OEMs and regulations define. With combined search volumes exceeding 430 searches per month in Malaysia for VOC and salt spray testing alone, this is one of the most commercially active testing categories in the regional automotive market.
ALS Testing is accredited to ISO/IEC 17025:2017 and offers a comprehensive range of automotive materials and environmental testing services, covering the key standards that govern material qualification for Malaysian and global automotive supply chains. Critically, ALS currently has no content covering VOC testing – the highest-volume keyword in our portfolio – making this Pillar Page a priority content investment.
VOC Emissions Testing for Automotive Interior Materials
Volatile organic compound (VOC) emissions from automotive interior materials are a significant concern for both regulatory compliance and consumer experience. Interior materials including instrument panels, headliners, seat foams, carpets, door trim panels, adhesives, and sealants all contribute to the volatile chemical environment inside the vehicle cabin. Elevated VOC concentrations in new vehicles have been associated with health concerns, including irritation, headache, and in extreme cases, sensitisation, and are subject to increasingly stringent OEM specifications and, in some markets, regulatory limits.
Automotive VOC testing is governed by several key standards that specify the test method, temperature conditions, sampling duration, and analytical approach. ALS provides testing to the primary automotive VOC standards required by global OEMs.
VDA 278 – Thermal Desorption Analysis of Automotive Interior Materials
VDA 278 is the German automotive industry standard for analysis of organic emissions from automotive interior components using thermal desorption GC-MS. The standard defines two heating stages: 90°C for VOC determination (volatile organic compounds) and 120°C for FOG determination (semi-volatile high-boiling condensable compounds, applied to a small sample of the material under controlled conditions. The emitted compounds are collected on a Tenax sorbent tube, thermally desorbed, and analysed by gas chromatography-mass spectrometry (GC-MS) to provide a quantitative profile of organic emissions.
VDA 278 is required by German OEMs (BMW, Volkswagen Group, Mercedes-Benz, Audi) and their Tier-1 suppliers, and is widely adopted across the global automotive supply chain. It provides quantitative data for comparison against specified emission limits for individual compounds and compound groups, typically expressed in µg/g of material.
ISO 12219 – Interior Air of Road Vehicles
ISO 12219 is the international standard series covering the measurement of VOC concentrations in vehicle interiors. The standard defines test methods for measuring VOC concentrations in the cabin air of complete vehicles (ISO 12219-1, bag method) and for emissions from individual interior components (ISO 12219-2 to ISO 12219-7, covering various chamber and micro-chamber methods). ALS provides component-level VOC testing to the ISO 12219 chamber methods, enabling material qualification against OEM VOC specifications defined under this standard.
VDA 275 – Formaldehyde Emission Testing
Formaldehyde is a specific VOC of regulatory and health concern, subject to dedicated test methods and specific emission limits in many OEM specifications. VDA 275 specifies a bottle method for determination of formaldehyde emissions from automotive interior non-metallic materials, using photometric analysis of the extracted formaldehyde. ALS provides formaldehyde testing to VDA 275 as part of our VOC testing capability, enabling clients to meet the specific formaldehyde limits defined by German and other OEMs.
ISO 6452 – Fogging Testing
Fogging testing determines the propensity of automotive interior materials to produce condensable vapours that deposit on the vehicle windscreen as a visible fog film. This is both an aesthetic issue (the fog film impairs driver visibility) and an indicator of high-boiling organic emissions from interior materials. ISO 6452 defines both photometric (reflectance-based) and gravimetric (mass deposition) methods for fogging assessment. ALS provides fogging testing to ISO 6452 as part of our interior emissions testing portfolio.
Corrosion & Salt Spray Testing
Corrosion is one of the most persistent and economically significant degradation mechanisms in automotive components and structures. Road salt, humid climates, and the electrochemical environment created by dissimilar metals in contact create conditions that attack metal surfaces, coatings, and plated surfaces continuously throughout a vehicle’s service life. Corrosion testing replicates these conditions in accelerated form, enabling assessment of coating quality, material selection, and corrosion protection effectiveness in a fraction of the real-world timescale.
ISO 9227 – Neutral Salt Spray Testing (NSS)
ISO 9227 is the primary international standard for salt spray (salt fog) corrosion testing, covering three test atmospheres: neutral salt spray (NSS), acetic acid salt spray (AASS), and copper-accelerated acetic acid salt spray (CASS). In the NSS test, the most widely applied, specimens are exposed to a continuously atomised 5% sodium chloride solution at 35°C for defined durations, typically ranging from 96 hours to 1,000 hours or more depending on the OEM specification. The standard defines the test apparatus requirements, solution chemistry, temperature tolerances, and evaluation criteria for assessing corrosion protection performance.
ALS salt spray testing to ISO 9227 is applied to painted and coated metal components, fasteners and fixings, electroplated surfaces, and automotive exterior and underbody components. Results are documented through visual examination of corrosion creep from scribe lines, blister formation, and spot corrosion. The resulting data is then classified according to ISO 10289, allowing manufacturers to verify compliance with their specific OEM requirements.
ASTM B117 – Standard Practice for Operating Salt Spray Apparatus
ASTM B117 is the American equivalent of ISO 9227 for neutral salt spray testing, widely required by American OEMs and their supply chains. The test conditions under ASTM B117 are equivalent to ISO 9227 NSS, with 5% sodium chloride solution at 35°C, but the evaluation criteria and acceptance requirements may differ between specifications. ALS can conduct salt spray testing to ASTM B117 for clients whose OEM specifications reference this standard.
Cyclic Corrosion Testing
While continuous salt spray testing (ISO 9227, ASTM B117) provides a standardised accelerated corrosion environment, cyclic corrosion testing, which alternates between salt spray exposure, humidity, ambient drying, and optional UV exposure phases, which many OEMs consider more representative of real-world corrosion progression. ALS offers cyclic corrosion testing to selected OEM and industry standards, providing a more nuanced assessment of corrosion protection performance for clients whose OEM specifications require this approach.
Thermal & Environmental Simulation Testing
Automotive components experience extreme thermal and environmental conditions during manufacture, assembly, shipping, and service. Environmental simulation testing replicates these conditions in controlled laboratory settings, enabling assessment of component integrity, material stability, and functional performance across the full environmental envelope.
Thermal Shock Testing (IEC 60068-2-14)
Thermal shock testing exposes components to rapid transitions between high and low temperature extremes, replicating the shock experienced by components during engine start-stop cycles, cold weather startup, or transition between heated and cooled environments. IEC 60068-2-14 specifies the thermal shock test method, defining the temperature extremes, transition time, dwell time at each extreme, and number of cycles. Thermal shock testing is applied to automotive electronics, sensors, connectors, and any component where thermal cycling could cause fatigue cracking, delamination, or seal failure.
Thermal Cycling & Temperature Endurance Testing (IEC 60068-2-1 / 2-2)
Thermal cycling testing exposes components to repeated temperature cycles between defined minimum and maximum temperatures, with controlled ramp rates and dwell times. Unlike thermal shock, cycling involves slower temperature transitions that stress materials through differential thermal expansion rather than rapid temperature shock. IEC 60068-2-1 covers cold testing and IEC 60068-2-2 covers dry heat testing. These methods are applied to automotive materials, electronics, and polymer components to assess stability and endurance across the operational temperature range.
Humidity & Damp Heat Testing (IEC 60068-2-78)
Humidity testing exposes components to elevated temperature and relative humidity conditions, assessing resistance to moisture ingress, hydrolytic degradation, corrosion, and swelling. IEC 60068-2-78 specifies the damp heat steady-state test at 40°C and 93% RH, widely applied to automotive electronics and connector systems. ALS humidity testing supports qualification of automotive electronics for tropical and humid climate markets including Southeast Asia, where humidity resistance is a particularly critical performance requirement.
Key Standards Reference – Materials & Environmental Testing
Standard
Test Type
Key Parameters
Typical Application
VDA 278
VOC/FOG Thermal Desorption
90°C VOC / 120°C FOG, GC-MS analysis
Interior trim, plastics, adhesives – German OEM
ISO 12219
Interior Air VOC
Chamber method, µg/m³ results
Interior material VOC qualification
VDA 275
Formaldehyde Emission
Bottle method, photometric
Interior materials – formaldehyde limits
ISO 6452
Fogging
Photometric / gravimetric, 100°C
Interior trim – windscreen fog assessment
ISO 9227 NSS
Salt Spray – Neutral
5% NaCl, 35°C, 96h to 1000h+
Metal components, coatings, fasteners
ISO 9227 AASS
Salt Spray – Acetic Acid
Acetic acid adjusted, 35°C
Aluminium alloys, decorative plating
ISO 9227 CASS
Salt Spray – Copper Accelerated
Copper chloride added, 50°C
Decorative chrome plating assessment
ASTM B117
Salt Spray – US Standard
5% NaCl, 35°C – ASTM method
American OEM supply chain
IEC 60068-2-14
Thermal Shock
Rapid transfer, −40°C to +150°C
Electronics, sensors, connectors
IEC 60068-2-1 / 2-2
Thermal Cycling
Defined ramp and dwell cycles
Automotive materials, electronics
IEC 60068-2-78
Damp Heat
40°C / 93% RH steady state
Automotive electronics – tropical climates
Industries & Applications
Automotive Interior Trim & Materials Suppliers
Suppliers of instrument panels, door trim, headliners, seat foams, floor carpets, and steering wheel covers require VOC emissions testing to VDA 278, ISO 12219, and VDA 275, as well as fogging testing to ISO 6452, to meet OEM interior air quality specifications. ALS provides the complete suite of interior emissions testing required for material qualification at German, Japanese, and American OEMs.
Metal Component & Fastener Manufacturers
Manufacturers of body-in-white components, underbody brackets, suspension parts, engine bay fasteners, and exterior fittings require salt spray testing to ISO 9227 and ASTM B117 to validate corrosion protection performance of coatings, platings, and surface treatments. ALS salt spray testing provides comprehensive performance data that suppliers use to verify compliance against OEM-specified corrosion resistance requirements.
Automotive Electronics & Sensor Manufacturers
ECUs, sensors, connectors, and power electronics components require thermal shock, thermal cycling, and humidity testing to IEC 60068 to demonstrate environmental robustness across the full automotive operating range. ALS environmental simulation testing supports qualification of automotive electronics for both temperate and tropical market applications.
Frequently Asked Questions – Materials & Environmental Testing
Q: What is VDA 278 and which OEMs require it?
VDA 278 is the German automotive industry standard for measuring organic emissions from non-metallic interior materials using thermal desorption gas chromatography-mass spectrometry. It is required by German OEMs including BMW, Volkswagen Group (Volkswagen, Audi, SEAT, SKODA, Porsche), Mercedes-Benz, and their direct suppliers. The standard provides both VOC and FOG (semi-volatile) results, expressed in µg/g of material, enabling material qualification through comparison against OEM-specified emission limits for individual compounds and compound groups.
Q: What is the difference between salt spray testing to ISO 9227 and ASTM B117?
ISO 9227 and ASTM B117 specify equivalent test conditions for neutral salt spray testing, both using 5% sodium chloride solution at 35°C, but they originate from different standards organisations (ISO vs ASTM) and may have different specification requirements in terms of evaluation methods and acceptance criteria. ISO 9227 is the standard required by most European and Asian OEM specifications, while ASTM B117 is required by American OEM specifications. ALS can test to either standard based on your OEM specification requirement.
Q: How long does a salt spray test take?
The duration of a salt spray test is defined by the OEM specification or the standard being tested to, and can range from 96 hours (4 days) for some coating qualification tests to 240, 500, or 1,000 hours for more demanding corrosion resistance requirements. Long-duration tests require advance planning and scheduling. Please contact our team early in your project timeline to allow for test scheduling, and to confirm whether interim inspection requirements are specified.
Q: Can ALS test for both VOC emissions and formaldehyde from the same material sample?
Yes. It is common for OEM specifications to require both general VOC/FOG analysis (by VDA 278) and specific formaldehyde determination (by VDA 275) from the same material. ALS can conduct both tests from a single sample submission, minimising the material required and simplifying the sample preparation and submission process. Please specify both test requirements when making your enquiry.
Request a Materials & Environmental Testing Quote
From VOC emissions qualification for interior trim materials to salt spray certification for exterior components and thermal shock testing for automotive electronics, ALS Testing provides the accredited materials and environmental testing services that automotive suppliers in Malaysia and Southeast Asia require. Contact our specialists to discuss your testing requirements and receive a quotation.
→ Request a Quote: https://www.alstesting.co.th/request-a-quote/
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ISO/IEC 17025 Accredited | VOC + Salt Spray + Thermal Specialist | German & International OEM Standards
Read moreApril 17, 2026
Dust analysis in factories: testing methods and ISO standards that factories need to know.
The growth of the EV and semiconductor industries has made particle control in manufacturing lines a key global issue, with the particle analysis services market valued at over $1 billion and expected to grow at an average rate of over 8% per year.
Particle analysis is the process of examining the size, quantity, and composition of particulate matter contaminating air, surfaces, or product components. This is done to assess risk and ensure quality control meets industry standards. Many manufacturing industries require strict air cleanliness control according to ISO 14644 standards.
This article will help you understand how dust analysis works, the types of instruments used, and why particle control has become a core part of quality control in modern factories.
Why is the Particle Analysis Market Growing So Rapidly?
Controlling particle contamination is a critical issue in advanced industries, particularly semiconductor and electronics manufacturing, which require cleanrooms with strict particle control.
According to global industry organizations, the particle analysis services market is worth over a billion dollars and is growing at an average rate of 8–9% per year.
This growth is primarily driven by three factors:
Quality and hygiene regulations in industry.
The growth of the EV and semiconductor industries.
Continuously evolving analytical technologies such as AI and real-time monitoring systems.
As production lines become more complex, dust analysis has become an integral part of quality control systems, not just general environmental monitoring.
The Dust Situation in Thailand: From PM2.5 to Production Processes
Thailand faces a recurring PM2.5 dust problem. Data from the Pollution Control Department (PCD) indicates that many areas of the country have annual PM2.5 averages higher than the World Health Organization’s guideline of 5 micrograms per cubic meter, as per WHO Air Quality Guidelines.
The PCD report also states that PM2.5 sources in Thailand come from various sectors, such as:
Transportation
Open burning
Industrial sector
Energy production
While PM2.5 information is often discussed in a health context, in the manufacturing sector, process particles are also a significant risk.
These particles can originate from metal scraps from machining, plastic powder from molding, or dust from machine wear, and can directly affect product quality.
How many types of dust are there in a production line, and how do they differ?
In industry, dust analysis is divided into two main groups based on particle origin: Airborne Particles and Component Cleanliness, which require different testing methods and reference standards.
Airborne Particles
Component Cleanliness
Type
Floating in the air in the production area.
Stuck on a surface or in a part.
Main factors
From the movement of people, machinery, and manufacturing processes.
From metal scraps, plastic powder, and wear and tear dust.
Main industry
Semiconductor, Medical Devices, Cleanroom
Automotive, EV, and Automotive parts
Standard
ISO 14644
VDA 19 / ISO 16232
Testing
LPC, Optical Microscope
SEM/EDX, Optical Microscope, IC
ALS
✓
✓
As manufacturing processes become more complex, dust monitoring has become part of a quality control system, not just an environmental test.
Laboratory Dust Analysis Methods
Laboratory dust analysis uses a variety of instruments depending on the particle characteristics and the context of the manufacturing process, including:
Optical Microscope
SEM/EDX (Scanning Electron Microscope with Energy Dispersive X-ray)
LPC Particle Counter (Liquid Particle Counter)
GC-MS (Gas Chromatography–Mass Spectrometry)
Ion Chromatography (IC)
Standards used in industrial dust analysis
Industrial particulate matter analysis must adhere to internationally recognized standards so that test results can be used in quality control and inspection processes.
Commonly encountered standards include:
Automotive & EV
Semiconductors and Electronics
Medical Devices
Aerospace
Food & Pharmaceutical
How long does dust analysis take?
The timeframe depends on the testing method. For example,
particulate matter measurement using ISO16232/VDA19 may take approximately 7-10 business days.
In an era of increasingly stringent manufacturing standards, the visibility and control of particles in production processes have become an integral part of a factory’s quality management system. Dust analysis is not just a technical test; it’s a crucial tool that helps manufacturers understand production process risks and consistently maintain international product standards.
For dust analysis or particle monitoring in your production process, ALS Testing Services (Thailand) Co., Ltd. offers services with an ISO/IEC 17025 certified laboratory.
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February 23, 2026
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January 30, 2026
ALS Testing Services (Thailand) Co., Ltd. organized the event “ALS Outing 2026 @ Ananta Riverhills Resort, Kanchanaburi” for relaxation. It is an activity that takes all employees out to find inspiration and reignite their passion for work, in order to enhance their own abilities.
1. Allow employees to showcase hidden skills and abilities that are not often expressed in the office, as well as increase communication among them.
2. Encourage employees to have shared work goals, motivate them to change the atmosphere, and create fun.
3. Employees get rest for good mental health. When employees rest, it benefits themselves, their work performance, and the team.
4. Increase good quality productivity within the organization.
5. Create a good environment for teamwork, with strength, enthusiasm, and cooperation in work.
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