00853nam a2200193 4500 0015164 20260608202926.0 260224s1978 xxu 665.742 A259 0015164 Gas measurement manual Meter proving- Part 12.0 ; Bell provers - Section 12.1 ; Transfer testing - Section 12.2 ; Field testing -Section 12.3 ; Distribution metering data - Part 13.0 ; In-service performance and meter test programs -Section 13.1 ; Meter records -Section 13.2 Meter proving - Part 12.0 ; Distribution metering data - Part 13.0 Arlington American Gas Association, AGA 1978 2011-01-13 ; 2011-01-13 c.a. 100 p. LIBRO American Gas Association, AGA 142 172508 172508 0 0 0 0 240327 BAAB BAAB 665.742 A259 0015164 2026-03-05 200050488 0 665.742 A259 0015164 200050488 2026-03-05 16:08:22 2026-03-05 NORMA