DIN 4841-5
Protective gloves; grade 2 gloves affording protection against chemicals; safety requirements, testing
废止
发布日期 :
2001-04-01
实施日期 :
DIN EN 899
Chemicals used for treatment of water for human consumption - Sulfuric acid; German version EN 899:1996
废止
发布日期 :
2001-03-01
实施日期 :