BHMA A156.21-2009
BHMA A156.21-2009
American National Standard for Thresholds
standard published 08/19/2009 by Builders Hardware Manufacturers Association
Full Description
1. SCOPE1.1 This Standard establishes requirements for thresholds. Types are described with identifyingnumbers. Strength tests, fastening systems, and gasketing tests are included.
1.2 Tests described or referenced in this Standard are performed under laboratory conditions.
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