
Respiratory protective devices. Specification for power assisted particle filtering devices incorporating full face masks, half masks or quarter masks
出版:British Standards Institution

专家解读视频
Performance and marking requirements.
© British Standards Institution 2013
UNE EN 147:1992 - Identical
SS EN 147:1991 - Identical
UNI EN 147:1992 - Identical
I.S. EN 147:1992 - Identical
DIN EN 147 (1991-11) - Identical
NF EN 147:1992 - Identical