BHMA A156-36:2016 pdf download.AMERICAN NATIONAL STANDARD FOR AUXILIARY LOCKS
1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.
1.3 Grade Qualifications Manufacturers shall indicate the Grade level to which their product is certified. Products shall meet all Grade requirements for tests listed in 1.1, A Grade 1 product shall meet all Grade 1 criteria, a Grade 2 product shall meet all Grade 2 criteria, and a Grade 3 product shall meet all Grade 3 criteria in each classification.
3.GENERAL
3.1 Cylinders and Input Devices for Locks
shall meet the performance requirements for the appropriate types and grade level found in the ANSI/BHMA Standard A 156.5-2014X for Cylinders and Input Devices for the lock to retain its grade listing. Assemblies take the grade level of the lowest graded component.
3.2 No lock can provide complete security by itself. Locks may be defeated by forcible or technical means, or evaded by entry elsewhere on the property. No lock can substitute for caution, awareness of your environment, and common sense. Builders hardware is available in multiple performance grades to suit the application. In order to enhance security and reduce risk, consult a qualified locksmith or other security professional. For applications where pick resistance and other higher security protections are required users should consider locks meeting UL 437 or ANSI/BHMA A156.30 for High Security Cylinders.
3.3 Tolerances Where only minus tolerances are given, the dimensions are permitted to be exceeded at the option of the manufacturers. All values which do not carry specific tolerances or are not marked maximum or minimum shall have the following tolerances: Linear dimensions shall be±1/16 in (1.6 mm). Pounds or pound force shall be±2%. Degrees- shall be±2 degrees.
3.4 Door and Frame Preparation The lock models described in this standard shall fit the door and frame preparations described in the ANSI/BHMA A 156.1 15 Series. Other configurations are permitted to fit special opening templating requirements. See manufacturers' instructions for details.
3.8 Codes Certain lock functions described in this Standard are not permitted on doors within a means of egress. Consult local Authority Having Jurisdiction. When locks and latches are used in fire door assemblies, they shall- be listed for use in fire doors by a Nationally Recognized Testing Laboratory (NRTL) and shall be under an in-plant follow-up inspection service.
3.9 When any function of lock combines a dead bolt and auxiliary dead latch, the auxiliary dead latch shall be effective whether or not the dead bolt is projected.BHMA A156-36 pdf download.