This specification covers the general requirements, property and performance requirements, quality, and inspection tests. An approved source list is included.

Restricted Chemical Substances

All product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification.

APPLICATION

The material covered by this specification is generally an insulator pad composed of a needled or bonded felted padding of synthetic and natural fibers (with the exception of 1B), suitable for use as a floor mat, dash, or carpet underlayment material. The material types are specified as follows:

Type IA: Material is suitable for general applications.

Type IB: Material is suitable for general applications, except closed cell PVC/NBR foam will be used in place of needled or bonded felted padding of synthetic natural fibers. Note: Type IB does not provide any acoustical benefit.

Type II: Material is suitable for acoustical applications. (Must be approved by the Navistar, Vehicle Acoustics Group, for the intended use.)