Full Description

1. SCOPE

1.1 This Standard establishes performance requirements for Mortise Locks and Latches and includesoperational, cycle, strength, material evaluation, security, and finish tests, and dimensional criteria.

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

1.4 Grade Qualifications (Also see Appendix A)
1.4.1 Two classifications of Grades are described in this Standard. Manufacturers shall indicateseparately, for both an Operational Grade and a Security Grade level of mortise locks and latches. Theminimum acceptable grade level for Operational and Security grades shall be a grade 3.
1.4.1.1 Operational Grades shall meet the requirements of Sections 8, 9, 10, 11 and 13.
1.4.1.2 Security Grades shall meet the requirements of Section 12.
1.4.2 Any function shall be tested for qualification under Operational Grades and all other functionsshall be considered as meeting the criteria provided the lock case and operating parts are of the sameconstruction as that of the lock previously tested.
1.4.3 Function F21 or a similar function with dead bolts and function F04 or a similar function withoutdead bolts to be certified shall be tested with the trim for qualification under Security Grades. All otherfunctions where access is prevented shall be considered as meeting the criteria provided the lock case andoperating parts are of the same construction as that of the lock previously tested.

Product Details:

Published: 07/06/2012

ANSI:

ANSI Approved Number of Pages: 37 part of: BHMA LOCK THE DOOR, BHMA A156 Standards Set