ASTM
The American Society for Testing and Materials

FMVSS
Federal Motor Vehicle Safety Standard

FAR
Federal Aviation Regulation (or Federal Acquisition Regulation)

ISO
International Standards Organization

K factor
A standardized unit of thermal insulation value (Also sometimes referred to as R factor)

Lbs/sqr. ft.
Pounds per square foot, (generally of cell surface)

MIL
Military Specification

PCF
Pounds per cubic foot

PSA
Pressure sensitive adhesive

PSI
Pounds per square inch

SAE
Society of Automotive Engineers

UL
Underwriters Laboratories (similar to CSA - Canadian Standards Association or CE - European Standards)

Selector Guide Specifications

ASTM D 1056
Classification system for cellular elastomeric materials. Uses code letters to designate grades and performance norms. Note: two versions are references, the 1967 Issuance-67 and the 2000 Revision-00 both are primarily the same with the exception of the lettering callouts which designate basic and additional properties.

ASTM D412
Test method for determination of a materials properties under stress, elongation and tensile strength.

ASTM D471
Test method for determining a materials basic resistance to hydrocarbon fluids.

ASTM 1171
Test method to determine a materials resistance to ozone exposure.

ASTM C 177
Test method for determining a materials K or R properties or thermal insulating values.

ASTM C 534
Method for determining a materials stability properties (shrinkage characteristics)

MIL R 6130
Military specification for cellular rubber materials and it has been replaced by ASTM D 6576 which contains essentially the same requirements.

FAR 25.853
A/B Federal Aviation Regulation that establishes standard methods for and ratings for aircraft interior
materials flammability properties.

FMVSS 302
Federal Motor Vehicle Safety Standard test method for determining burn rate for automotive interior materials.

UL 94
Classification system for material flammability properties (burn rate) in various modes of exposure.

UL 50/508
Classification system for gasketing materials with and without adhesive systems. See file MH9949
at www.ul.com