How to handle the halogen testing process for rubber products? Adding halogens (fluorine, chlorine, bromine, iodine) to polymer products such as plastics to increase the ignition point has the advantage of having a higher ignition point than ordinary polymer materials, with a ignition point of approximately 300 ℃. During combustion, halogenated gases (fluorine, chlorine, bromine, iodine) are emitted, which quickly absorb oxygen and extinguish the fire. However, its disadvantage is that when the concentration released is high, the visibility will decline, which will lead to the inability to identify the escape path. At the same time, it has a strong toxicity, which affects the respiratory system of people. In addition, the halogen gas released from the combustion of halogenated polymers will generate corrosive harmful gas (Hydrogen halide) when combined with water vapor, causing corrosion to some equipment and buildings.

Brominated flame retardant, such as PBB, PBDE, TBBPA, are the most commonly used flame retardants, which are mainly used in electronic and electrical industries, including circuit boards, computers, fuel cells, televisions and printers. These halogenated flame retardant materials produce dioxins during combustion and can exist in the environment for many years or even accumulate in organisms for life, which cannot be eliminated.

In November 2007, IPC proposed the draft IPC/JEDEC J-STD-709 standard, which had the same requirements for halogens as IEC 61249-2-21:2003, but covered a wide range of products, including but not limited to the following categories:

Resins in various plastic components (substrates, molds, fluxes, bottom fillers, etc.);

Printed circuit boards and printed circuit board components;

Welding flux residue;

Resin in cables, connectors, sockets, and external wiring;

Resin in mechanical plastics (masks, fans, etc.).


Standards and regulatory requirements:

Regarding halogen-free requirements, there are regulations in IEC61249-2-21:2003 for printed circuit boards, with specific requirements of bromine<0.09% (900ppm), chlorine<0.09% (900ppm), and total halogen content<1500ppm.

The detection methods include:

IPC-TM-650 2.3.28.2; BS EN 14582:2007 standard;

IEC 61249:2003 Part 2.21 (IEC 61189:2006-3);

JY/T 020:1996 General Rules for Ion Chromatography;

GB/T9872-1998 Determination of halogens in rubber;

ASTM 4327:2003 Determination of Common Anions in Water, etc.


Testing process:

1. Fill out the application form

2. Provide product information

3. Sending samples

4. Test OK

5. Report or certificate issuance

6. Test cycle of 5 working days