This standard may be used as a basis for testing louvers with air used as the test gas.

Tests conducted in accordance with the requirements of this standard are intended to demonstrate the performance of a louver and are not intended to determine acceptability level of performance. It is not the scope of this standard to indicate actual sequences of testing, nor is it in its scope to specify minimum or maximum criteria for testing.

The parties to a test for guarantee purposes may agree to exceptions to this standard in writing, prior to the test. However, only a test which does not violate any mandatory requirement of this standard shall be designated as a test conducted in accordance with this standard.

Purpose

The purpose of this standard is to establish uniform laboratory test methods for louvers. Characteristics to be determined include air leakage, pressure drop, water penetration, wind driven rain, and operational torque.

It is not the purpose of this standard to establish minimum or maximum performance ratings.

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