BS-EN-1127-1 Complete Document History
Explosive atmospheres. Explosion prevention and protection. Basic concepts and methodology

Complete Current Edition:
   2011 EDITION - Basic concepts and methodology - Aug. 31, 2011

Obsolete Revision Information:
   2007 EDITION - Basic concepts and methodology - Jan. 31, 2008
   1998 EDITION - Basic concepts and methodology - Jan. 15, 1998