ISA-S12.12 › Complete Document History
Nonincendive Electrical Equipment for Use in Class I & Ii, Divisions 1 & 2 Hazardous (


Obsolete Revision Information:
   REPLACED BY ISA-12.12.01 - WITHDRAWN IN 2000 - Jan. 1, 2000
   1994 EDITION - NONINCENDIVE ELECTRICAL EQUIPM - Jan. 1, 1994
   1984 EDITION - ELECTRICAL EQUIPMENT FOR USE I - Jan. 1, 1984