PFOS inventory guidance

Guidance for the inventory of perfluorooctane sulfonic acid (PFOS) and related chemicals listed under the Stockholm Convention

Scope: The objective of this document is to provide step‐by‐step guidance that enables Parties to establish an inventory of products and articles containing perfluorooctane sulfonic acid (PFOS), its salts, perfluorooctane sulfonyl fluoride (PFOS‐F) and PFOS related chemicals and industrial processes using these chemicals. The guidance includes methods for estimating the amount products and articles containing such chemicals in case accurate data is lacking. The inventory should provide Parties with baseline data on the presence of PFOS at the national level. Such data would serve as a basis for Parties to develop strategies for meeting their obligations under the Convention in relation to PFOS.

Main target audience: The focal point responsible for coordinating the process of updating the NIP, staff responsible for planning the inventory, and technical staff responsible for conducting the inventory of PFOS.