BS EN 148-2:1999現行
Respiratory protective devices: threads for facepieces. Centre thread connection
出版：British Standards Institution
專家解讀視頻
Does not apply to diving equipment or to positive pressure demand breathing apparatus.
? British Standards Institution 2013
SN EN 148-2:1999 - Identical
NEN EN 148-2:1999 - Identical
DIN EN 148-2 (1999-04) - Identical
ONORM EN 148-2:1999 - Identical
NBN EN 148-2:1999 - Identical
I.S. EN 148-2:1999 - Identical
NF EN 148-2:1999 - Identical
UNI EN 148-2:2000 - Identical
NS EN 148-2 Ed. 2 (1999) - Identical
UNE EN 148-2:1999 - Identical
SS EN 148-2 Ed. 2 (1999) - Identical
