scope:

This standard may be used as the basis for testing fans, blowers, exhausters, compressors, or other air moving devices when air is used as the test gas.

The scope of this standard does not cover:

(a) circulating fans such as ceiling fans, desk fans and jet fans.

(b) compressors with interstage cooling.

(c) positive displacement machines.

(d) testing procedures to be used for design, production, or field testing.

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