本规程以GB/T 18604-2014《用气体超声流量计测量天然气流量》、GB/T 30500-2014《气体超声流量计使用中检验声速检验法》、GB/T 17747.2-2011《天然气压缩因子的计算 第2部分:用摩尔组成进行计算》、GB 3836《爆炸性气体环境用电气设备》、GB 50251-2015《输气管道工程设计规范》、ISO 17089-1:2019《Measurement of fluid flow in closed conduits - Ultrasonic meters for gas-Part1: Meters for custody transfer and allocation measurement》、ISO 17089-2:2012《Measurement of fluid flow in closed conduits - Ultrasonic meters for gas-Part 2: Meters for industrial applications》、AGA Report No.8《Part 1-2017 Thermodynamic properties of natural gas and related gases using detail and cross equations of state》、AGA Report No.9-2007 《Measurement of gas by multipath ultrasonic meters》和AGA Report No.10-2003《Speed of sound in natural gas and other related hydrocarbon gases》为参考,结合我国气体超声流量计的现状,对JJG 1030-2007《超声流量计》中气体超声流量计的检定部分进行了修订。格式上按照JJF 1002-2010《国家计量检定规程编写规则》进行编写,本规程与JJG 1030-2007相比,除了编辑性修改外,主要技术变化如下:
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