NS EN 170 Ed. 2 (2002)现行
Personal Eye-protection - Ultraviolet Filters - Transmittance Requirements And Recommended Use
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Defines the transmittance requirements and the scale numbers for filters for protection against ultraviolet radiation. EN 166 gives other applicable requirements for these types of filters. Annex A gives advice on the selection and use of these filters.
UNI EN 170:2003 - Identical
SN EN 170:2002 - Identical
NEN EN 170:2002 - Identical
ONORM EN 170:2003 - Identical
DIN EN 170 (2003-01) - Identical
BS EN 170:2002 - Identical
NBN EN 170:2002 - Identical
I.S. EN 170:2002 - Identical
NF EN 170:2003 - Identical
UNI EN 170:1993 - Identical
SS EN 170 Ed. 2 (2003) - Identical
UNE EN 170:2003 - Identical
