scope:

This Standard establishes requirements for bored and preassembled locks and latches and includes performance tests, strength tests, operational tests, material evaluation tests, finish tests, and dimensional criteria.

Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.

When locks and latches are used in fire door assemblies, they shall have been tested and listed for use in fire doors by a nationally recognized independent testing laboratory and shall be under an in-plant follow-up inspection service.

See ANSI/BHMA A156.13 or A156.12 respectively for series 1000 mortise locks and latches or series 5000 interconnected locks and latches.