ACF
GHS Report

News Details

GPC - Global Product Compliance

Thailand approves to restrict PFOA under the Stockholm Convention

2022-12-15 Reference source : Thailand

Substances of concern SVHC


As required under the Hazardous Substance Act B.E. 2535 (1992), the Ministry of Industry of Thailand's Department of Industrial Works opened the first draft notification for the public hearing procedure on 20 May  2021. It has perfluorooctanoic acid (PFOA) included as part of the primary revision. On 3 May 2019, more than 180 nations decided to prohibit the manufacturing and use of PFOA, its salts, and PFOA-related chemicals at the international Stockholm Convention on Persistent Organic Pollutants (POPs) 

However, as unintended trace contamination is possible, to calculate this the Department of Industrial Works evaluates European Union Regulation (1019/1021) 

 The draft specifies the following exemptions under Type 4 (banned chemicals):

Substance name 

Hazard classification 

Exemption 

Perfluorooctanoic acid 

CAS No. 335-67-1 

 

 

 

PFOA and its salts 

classified as Type 4 hazardous substances (banned for production, import, export, or possession) 

The following applications will be permitted as Type 3 substances; 

Photolithography or etch processes in semiconductor manufacturing 

Photographic coatings applied to films 

Textiles for oil and water repellency for the protection of workers from dangerous liquids that comprise risks to their health and safety 

Fire-fighting foam for liquid fuel vapor suppression and liquid fuel fires (Class B fires) 

Manufacture of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) for the production of: 

Industrial waste heat exchanger equipment 

Industrial sealants capable of preventing leakage of volatile organic compounds and PM2.5 particulates 

Manufacture of polyfluoroethylene propylene (FEP) for the production of high-voltage electrical wire and cables for power transmission 

Manufacture of fluoroelastomers for the production of O-rings, v-belts, and plastic accessories for car interiors 

 

Ammonium Perfluorooctanoate 

CAS No. 3825-26-1 

Sodium Perfluorooctanoate 

CAS No. 335-95-5 

Potassium Perfluorooctanoate 

CAS No. 2395-00-8 

Silver Perfluorooctanoate 

CAS No. 335-93-3 

Perfluorooctanoyl Fluoride 

CAS No. 335-66-0 

Methyl Perfluorooctanoate 

CAS No. 376-27-2 

PFOA-Related Compounds 

classified as Type 4 hazardous substances (banned for production, import, export, or possession) 

Ethyl Perfluorooctanoate 

CAS No. 3108-24-5 

 

In the manufacturing of fluoropolymers, PFOA (a synthetic perfluorochemical) is produced as a byproduct. A class of substances known as perfluorochemicals (PFCs) is used to create fluoropolymer coatings and goods that withstand heat, oil, stains, grease, and water. For instance, PFOA was used in the manufacture of polytetrafluoroethylene (PFTE) better known as Teflon. People are most likely exposed to PFOA through the consumption of tainted water and perhaps through the use of PFOA-containing items. Compared to the general population, perfluorochemical industry workers may be exposed to higher levels of PFOA. 

Other PFOA-related chemicals on Thailand's List No. 5.1(Hazardous Substance Act's Annex 5) now have different classifications: Substances 523-533 are now Type 3 hazardous substances when certain conditions or exemptions apply, while Substances 534-541 are now Type 4 hazardous substances when such conditions or exemptions are not present, such as when the concentration is below 0.0000025% w/w. Industrial chemicals, chemical waste, discarded electrical and electronic equipment, and chemical weapons convention chemicals are all regulated by Annex 5. 

In addition, the first draft notification has two additional compounds with more accurate classifications: 

The classification of benzyl cyanide (Cas RN 140-29-4) has been changed from Type 1 (hazardous substance) to Type 3. Triethanolamine (Cas RN 102-71-6), which is already a Type 3 substance, has also had a threshold limit of > 30% w/w applied in accordance with list 3B (precursors) annexed to the Chemical Weapons Convention. 



We acknowledge that the above information has been compiled from Thailand.

<< PREVIOUS BACK NEXT >>
Top