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Standard for Gasketing (ANSI/BHMA A156.22-2021)

American National Standards Institute,
Builders Hardware Manufacturers Association
Publication Date

Standard establishing requirements for the performance and installation of gasketing systems including intumescents applied to, or mortised to doors, frames or both.  The current version of this standard was published in the year 2021 and a can be purchased to be viewed in full from the ANSI webstore in the link.   The ANSI webstore also has previous versions of this standard available for purchase with free digital previews that were published in the years 2017, 2012, and 2005, as well as are two more versions produced in the years 2003 and 1996 that do not have digital copies available for purchase; one must call customer service to ask about acquiring them.