scope:

This Specification offers recommendations for classification, materials of construction, tolerances, defects, workmanship, inspection, physical, mechanical and design properties of glass fiber-reinforced pultruded structural shapes intended for use as construction items in cooling tower applications.

These specification recommendations are defined by existing American Society for Testing and Materials (ASTM) documents. Supplementary information on glass fiber-reinforced plastic pultruded structural products may be obtained from the pultrusion supplier. It is not intended to restrict or limit technological changes affecting performance when those changes are agreed upon by the pultrusion supplier and cooling tower manufacturer.

Laboratory tests under controlled conditions should be used to measure and describe the properties of materials, products or assemblies covered by this standard and not to assess risk conditions. It is the responsibility of the user of the document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.