1.1 These test methods cover the determination of relative density (specific gravity) of gaseous fuels, including liquefied petroleum gases, in the gaseous state at normal temperatures and pressures. The test methods specified are sufficiently varied in nature so that one or more may be employed for laboratory, control, reference, gas measurement, or in fact for any purpose where it is desired to know the relative density of gas or gases as compared to the density of dry air at the same temperature and pressure.
1.2 The procedures appear in the following sections:
Section Method A, Ac-Me Gravity Balance 7 to 9 Method B, Ac-Me Recording Gravitometer 10 to 12 Method C, Arcco-Anubis Recording Gas Gravitometer 13 to 15 Method D, Arcco-Anubis Portable Gas Balance 16 to 18 Method E, Kimray Gravitometer 19 to 21 Method F, Ranarex Recording and Indicating Gravitometer 22 to 23 Method G, UGC Gravitometer 24 to 26
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