scope:

This specification covers the material of construction, workmanship, physical properties and methods of testing fiberglass reinforced plastic panels used in the construction of cooling tower fan stacks.

Laboratory flammability tests (E84/UL 723) applicable to this standard should be used to measure and describe the properties of materials, products or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire risk of materials, products or assemblies under actual fire conditions.