
Personal Eye Protection; Ultraviolet Filters; Transmittance Requirements And Recommended Use
出版:Swiss Standards

專家解讀視頻
Describes the transmittance requirements for UV-filters and the recommended use.
NFS 77 105 : 1983 - Identical
DIN EN 170 : 2003 - Identical
NFS 77 105:1983 - Identical
DIN EN 170 (2003-01) - Identical