The ASTM E785 standard is used to determine the air leakage rate of installed exterior windows and doors under specified static air pressure differences. The testing is performed by sealing a chamber to the interior or exterior face of the test specimen, supplying or exhausting air from the chamber at a rate required to maintain the specified test pressure, and measuring the air flow lost or gained across the testing chamber.

This test is intended to measure air leakage associated with the assembly and not the leakage through the openings and adjacent construction.

The ASTM E1105 Standard is a standard procedure for determining the resistance to water penetration under uniform or cyclic static air pressure differences of installed exterior windows, skylights, curtain walls, and doors. The air-pressure differences acting across a building envelope vary greatly. These factors should be considered fully prior to specifying the test pressure difference to be used.

The AAMA 501.2 is the standard for testing quality assurance and diagnostic water leakage field check of installed storefronts, curtain walls, and sloped glazing systems. It is designed to aid in the water-tight testing of large glass areas meant to be permanently closed, such as store fronts, curtain walls, and sloped glazing systems.

The AAMA 502 specification is used to test the performance of newly installed fenestration products for air leakage and water penetration. It’s used to ensure minimalized air and moisture penetration rates on newly installed windows / glazing systems.

The AAMA 511 specification is a form of diagnostic testing used to recreate known or suspected water leaks for the purpose of identification and remediation. It is commonly referred to as quality assurance water penetration testing. It is used to isolate and identify water intrusion in both new and existing buildings.

This Standard/Specification defines requirements for four Performance Classes.

The Performance Classes are designated R, LC, CW, and AW for windows, doors, and secondary storm products (SSPs). Skylights, roof windows, and TDDs are not identified with a Performance Class, but are treated like specialty products. This classification system provides for several levels of performance.