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Description / Abstract:
(a) This Standard applies to:
(1) axial full-flow turbine meters with mechanical and/or electrical
outputs whose rotating member
is driven by a compressible fluid;
(2) the measurement of gas by a turbine meter; the meter's
construction, installation, operation,
performance characteristics, data computation and presentation,
calibration, field checking, and
other related considerations of the meter.
(b) This Standard does not apply to:
(1) accessory equipment used to measure pressure and temperature,
and/or density for the accurate
determination of mass or base volumes, or those accessories used to
automatically compute mass or
base volumes;
(2) steam metering or two-phase flow measurement;
(3) applications involving pulsating flow or fluctuating flows where
adverse effects on meter
accuracy can be anticipated.