ANSI B109.1:2000 pdf free.DIAPH RAGM-TYPE GAS DISPLACEMENT M ETERS. 1.21 LIFE TEST, ACCELERATED. A test under controlled conditions simulating long-term operation designed to determine long-term maintenance and performance characteristics within a relatively short period of time. 1.22 MAOP. Maximum Allowable Operating Pressure equivalent to manufacturer's maximum working pressure. 1.23 METER ACCURACY. The degree to which a meter correctly measures the...
ANSI pdf free download