ANSI/BHMA A156.21 Thresholds

ANSI/BHMA A156.21-2014 AMERICAN NATIONAL STANDARD FOR THRESHOLDS

Revision of ANSI/BHMA A156.21-2009
Approved December 5, 2014

1. SCOPE

 

1.1 This Standard establishes requirements for thresholds. Types are described with identifying numbers. Strength tests, fastening systems, and gasketing tests are included.

 

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