scope:

This specification covers the general requirements, property and performance requirements, quality, qualification, source approval, and quality control for four weights of polymeric sheet materials that can be used as a sound deadener that is typically coupled with an underlayment of foam or shoddy. The type of underlayment is to be specified in an appropriate specification.

Type I:

minimum weight is 2.44 kg/m² or 0.50 Lb/ft²

Type II:

minimum weight is 3.90 kg/m² or 0.80 Lb/ft²

Type III:

minimum weight is 4.88 kg/m² or 1.00 Lb/ft²

Type IV:

minimum weight is 6.10 kg/m² or 1.25 Lb/ft²

Type V:

minimum weight is 7.81 kg/m² or 1.60 Lb/ft²

Type I, II, III, IV, or V Sound Deadeners will be further divided into Grade A, B, C, D or E dependent on Property and Performance values listed in Section 4.2.

Note: If Grade is not specified, then Grade A shall apply.

Restricted Chemical Substances

Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification.