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:

1. Quality and hygiene regulations in industry.
2. The growth of the EV and semiconductor industries.
3. 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.

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.