2006UL SUBJECT 2029-2006 OUTLINE OF INVESTIGATION FOR GAS/VAPOR-BLOCKED CABLE CLASSIFIED FOR USE IN CLASS I HAZARDOUS (CLASSIFIED) LOCATIONS (Issue 4)
1995UL SUBJECT 2029-1995 Outline of Investigation for Gas/Vapor-Blocked Cable Classified for Use in Class I Hazardous (Classified) Locations (Issue Number 3)
1990UL SUBJECT 2029-1990 Outline of Investigation for Gas/Vapor-Blocked Cable Classified for Use in Class I Hazardous (Classified) Locations Issue Number: 1