KS L ISO 18560-1-2020 Fine ceramics(advanced ceramics, advanced technical ceramics) —Test method for air-purification performance of semiconducting photocatalytic materials by test chamber method under indoor lighting envi
2020KS L ISO 18560-1-2020 Fine ceramics(advanced ceramics, advanced technical ceramics) —Test method for air-purification performance of semiconducting photocatalytic materials by test chamber method under indoor lighting envi