BS-EN-148-3 Complete Document History
Respiratory protective devices: threads for facepieces. Thread connection M 45 x 3

Complete Current Edition:
   TECH COR 1 - TECHNICAL CORRIGENDUM 1, 1999 - Jan. 1, 1999
   1999 EDITION - SPECIFICATION FOR THREAD CONNE - Jan. 1, 1999

Obsolete Revision Information:
   AMD 9353 - AMENDMENT 1 - April 1, 1997
   1992 EDITION - SPECIFICATION FOR THREAD CONNE - Jan. 1, 1992