Найдено: 4
Overview ISO 22197-4:2021 specifies a laboratory test method for evaluating air‑purification performance of semiconducting photocatalytic materials with respect to the removal of formaldehyde. The st…
1 Scope This part of ISO 22197 specifies a test method for the determination of the air-purification performance of materials that contain a photocatalyst or have photocatalytic films on the surface,…