BS 7156-1:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Respiratory protective devices: threads for facepieces Specification for standard thread connection
Hardcopy , PDF
15-07-1999
English
28-09-1990
National foreword
National appendix A
National appendix B
Cooperating organizations
Brief history
Specification
1 Object and field of application
2 Standard thread connector
3 Threads
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