NF B44-101-5:2013 Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for air-purification performance of semiconducting photocatalytic materials - Part 5: removal of methyl mercaptan
2021NF B44-101-5*NF ISO 22197-5:2021 Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for air-purification performance of semiconducting photocatalytic materials - Part 5 : removal of methyl mercaptan
2013NF B44-101-5:2013 Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for air-purification performance of semiconducting photocatalytic materials - Part 5: removal of methyl mercaptan