ASME B19.3 pdf download ASME B1 9.3-1 991 SAFETY STANDARD FOR COMPRESSORS FOR PROCESS INDUSTRIES 1.2 Scope (a) The specific recommendations in this Standard cover the requirements for safety devices and protective facilities to prevent compressor accidents as a result of excessive pressure, destructive mechanical failures, inter- nai fires or explosions, and leakage of toxic or flammable fluids. General safety...