I.S. EN 148-3:1999现行
Respiratory Protective Devices - Threads For Facepieces Part 3: Thread Connection M 45 X 3
出版：National Standards Authority of Ireland
专家解读视频
Applies to self-contained compressed air breathing apparatus designed as positive pressure breathing apparatus. It specifies a thread connection M 45 x 3, which may optionally be used for facepieces for positive pressure breathing apparatus.
UNI EN 148-3:2000 - Identical
UNE EN 148-3:1999 - Identical
NS EN 148-3 Ed. 2 (1999) - Identical
UNI EN 148-3:1993 - Identical
NF EN 148-3:1999 - Identical
NBN EN 148-3:1999 - Identical
SS EN 148-3 Ed. 2 (1999) - Identical
BS EN 148-3:1999 - Identical
DIN EN 148-3 (1999-04) - Identical
ONORM EN 148-3:1999 - Identical
NEN EN 148-3:1999 - Identical
SN EN 148-3:1999 - Identical
