View Historical Standards for C991:

Click any Designation link to view a Document Summary Description.

Document Designation and Title Year Select Item(s) C991 Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings 08 C991 Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings 03 C991 Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings 00 C991 Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings 98