This Standard establishes requirements for door closers combined with hold-open devices or freeswinging door closers combined with releasing devices and includes performance tests covering operational@ cyclical and finish criteria. Tests described in this Standard are performed under laboratory conditions. In actual usage@ results vary because of installation@ maintenance and environmental conditions. Instructions shall be included with the product requiring the end users to@ (1) test the product after installation in accordance with the manufacturer's criteria@ (2) periodically test the products in conjunction with the fire alarm system and@ (3) maintain the door closing system in working order.