Perfluorooctane sulfonic acid (PFOS) is a persistent organic pollutant that is difficult to degrade and bioaccumulative, and is listed as a controlled substance under the Stockholm Convention. In foreign trade, PFOS Testing refers to the testing of PFOS content in products to ensure compliance with market access requirements such as EU POPs regulations, REACH regulations, and US EPA. It is commonly found in textiles, leather, electronics, coatings, and other industries. Use cases include: sample testing before export, customer requests for test reports, customs spot checks, etc. Notes: Limits vary by market (e.g., EU limit is 25 ppb), so confirm the latest regulations; testing methods usually use LC-MS/MS; distinguish from other perfluorinated compounds such as PFOA and PFHxS, which are often controlled together. Compared with routine chemical testing, PFOS testing focuses more on specific hazardous substances, and reports must be issued by qualified laboratories.
📝 Examples
1. Our exported outdoor jackets require a PFOS Testing report; please confirm that the test results are below the EU limit. (Note: The customer requires a compliance test report to ensure the product can enter the EU market.)
2. Because the US EPA has updated its PFOS control requirements, the PFOS Testing for this batch of carpets must be carried out according to the new standard. (Note: Due to regulatory changes, testing must be conducted according to the latest standard to avoid customs clearance risks.)
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