scope:

This specification covers the general requirements, property and performance requirements, quality, qualification, source approval, and quality control for six 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 VI: minimum weight is 1.7 kg/ m² or 0.35 Lb/ ft²

Type I, II, III, IV, V, or VI Sound Deadeners will be further divided into Grade A, B, C, D, E, F or G 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.