This SAE Recommended Practice establishes for trucks, buses, and multipurpose passenger vehicles with GVW of 4500 kg (10 000 lb) or greater: a. Minimum performance requirements for the electric blower motor switch. b. Uniform test procedures that include those tests that can be conducted on uniform test equipment by commercially available laboratory facilities.
This standard should be "Stabilized" because it covers technology which is mature and not likely to change in the foreseeable future and there is not expertise on the committee available to recommend any revisions.