Your regular update for technical and industry information
NOVEMBER 2021 - SOFTLINES
In November 2021, the International Organization for Standardization (ISO) published the standard of ISO 16190:20211. It is a testing method for the determination of polycyclic aromatic hydrocarbons (PAHs) in footwear materials.
PAHs are usually not intentionally added to the production process and they are present as contaminants that are commonly found in rubber and pigment such as carbon black. PAHs are considered to be carcinogenic and genotoxic. Hence, several countries have restricted PAHs in articles such as footwear, e.g. in the European Union (EU), PAHs are restricted under REACH Annex XVII in consumer products containing rubber or plastic components that come into direct contact with skin, as well as clothing, footwear and textile articles with prolonged skin contact.
This new standard cancels and replaces the Technical Specification (ISO/TS 16190:2013). ISO 16190 is now aligned with EN 17132 and AfPS GS 2019:01 PAK in terms of the extraction procedure. Compared with ISO/TS 16190:2013, the most important change is that the extraction solvent is changed from n-hexane to toluene. This will lead to more comparable results as the extraction is a crucial step and probably to higher results as toluene is the better extraction solvent for PAHs in plastics.