Procedure for Testing Strength of Hose and Couplings,

摘要

The test procedure has been prepared as a guide for testing the strength of hose and couplings of supplied-air respirators. Hose and couplings used with Types 'A', 'AE', 'B',and 'BE'respirators are tested with a pull of 113kilograms for five minutes. Hose and couplings used with Types 'C'and 'CE'respirators are tested with a pull of 45kilograms for five minutes and also subjected to an internal air pressure.