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PFOS/PFOA
 

 

 

PFOS

 

PFOA

PFOS/PFOA Testing
PFOS is a fully fluorinated anion, widely used as the surface treatment of textiles, leather products, paper, furniture and carpets for its waterproofing and oil-resistance. It’s also used as intermediates for the production of paints, foam extinguishing agents, floor polish, pesticides and termite control agents for its chemical stability. PFOS and its closely related compounds, which contain PFOS impurities or substances to the formation of PFOS, all belong to perfluoroalkyl sulfonate substances. In December 2002, PFOS was classified as persistent, bio-accumulative and toxic (PBT) in the 34th OECD Chemical Committee meeting.

Perfluorooctanoic acid (PFOA) and its salts are suspected to have a similar risk profile to PFOS, and consequently the European Parliament has placed a restriction on marketing and use of PFOS, PFOA and its salts(now included in EU REACH Annex XVII - Restriction List in 2009).

Restriction Requirement of EU REACH(Directive 1907/2006/EC)

• PFOS shall not be used as a substance or constituent of preparations in products with a concentration equal to or higher than 0.005 % by mass. Otherwise, products will be restricted to be placed on the market;
• Semi-finished products or articles, or parts shall not be placed on the EU market if the concentration of PFOS is equal to or higher than 0.1 % (1000ppm) by mass;and
• For textiles or other coated materials, the concentration shall not be higher than 1 μg/m2.

Fully perfluorinated substances with long carbon chains, including PFOS, are lipid-waterproofing; therefore, PFOS-related substances are used as surface-active agents.

Their extreme persistence makes them suitable for high temperature and strong acids or bases contact. PFOS has been widely applied in civil and industrial production, mainly in the following products and industries:

• carpet
• leather products
• clothes
• textiles
• paper and packaging materials
• paints and paint additives
• industrial and household cleaning agents
• pesticides and insecticides
• foam fire extinguishers
• photography
• photolithograph
• semiconductor
• hydraulic fluids
• metal plating.

If you are an importer or manufacturer of above products, you need to ensure your products do not contain PFOS, PFOA or its salts.

Other hazardous substances that are restricted in above products include SVHC, PAHs, Phthalates, PFOS, PoHS, the substances on REACH-Restriction list and so on.

Doruk Sistem offers restricted substances testing services in one package to you or your suppliers and make sure your products comply with the latest safety requirement of EU legislation.

Doruk Sistem will provide expert advice on what tests need to be carried out in your products and inform you of the latest developments of PFOS/PFOA as a complementary service.

Click here to jump to other testing services offered by Doruk.