内容简介
JJG（冀）3010-2020热式燃气表
Thermal Gas Meters
2020-03-26发布
2020-04-30 实施
目 录
引 言 .......................................................................................................................... 1
1 范围 ...........................................................................................................................1
2 引用文件 ...................................................................................................................1
3 术语和计量单位 .......................................................................................................1
3.1 术语 ........................................................................................................................1
3.2 计量单位 ................................................................................................................2
4 概述 ...........................................................................................................................2
4.1 原理 ........................................................................................................................2
4.2 结构 ........................................................................................................................3
4.3 用途 ........................................................................................................................3
5 计量性能要求 ...........................................................................................................3
6 通用技术要求 ...........................................................................................................3
6.1 外观与标识 ............................................................................................................3
6.2 指示装置 ................................................................................................................4
6.3 流量范围和零流量 ................................................................................................5
6.4 密封性 ....................................................................................................................6
6.5 压力损失 ................................................................................................................6
6.6 提示功能 ................................................................................................................6
6.7 附加功能 ................................................................................................................6
6.8 防爆性能 ................................................................................................................6
7 计量器具控制 ...........................................................................................................6
7.1 检定条件 ................................................................................................................6
7.2 检定项目 ................................................................................................................7
7.3 检定方法 ................................................................................................................8
7.4 检定结果的处理 .................................................................................................. 11
7.5 检定周期 .............................................................................................................. 11
附录 A..........................................................................................................................12
附录 B..........................................................................................................................13