FGIA Releases Updated Document Covering Methods of Test for Multi-bar Hinges in Windows
AAMA 904-21, Specification for Multi-Bar Hinges in Window Applications, an FGIA document, is now available for purchase. It was last updated in 2014.
United States Chris Griffin Industry Alliance Bar Hinges In Windows Task Group Glazing Industry Alliance Multi Bar Hinges
Source: glassmagazine.com