JJF（冀）136-2017 标准表法液化天然气加气机检定装置
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JJF（冀）136-2017
标准表法液化天然气加气机检定装置
Master Meter Method Verification Deviceof Liquefied Natural Gas Dispenser
2017-12-31实施
2017-10-23发布 目 录 目 录 .........................................................................................................................1 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 构造 .....................................................................................................................2 4.2 原理 .....................................................................................................................2 5 计量特性 ...................................................................................................................3 5.1 扩展不确定度 .....................................................................................................3 5.2 重复性 .................................................................................................................3 5.3 流量范围 .............................................................................................................3 5.4 密封性 .................................................................................................................3 6 校准条件 ...................................................................................................................3 6.1 校准装置要求 .....................................................................................................3 6.2 校准介质 .............................................................................................................4 6.3 校准环境条件 .....................................................................................................4 7 校准项目和校准方法 ...............................................................................................4 7.1 校准项目 .............................................................................................................4 7.2 校准方法 .............................................................................................................4 8 校准结果表达 ...........................................................................................................7 8.1 示值误差 .............................................................................................................7 8.2 重复性 .................................................................................................................8 8.3 不确定度 .............................................................................................................8 9 复校时间间隔 .........................................................................................................10 附录 A 校准记录参考格式....................................................................................... 11 附录 B 校准证书内页参考格式...............................................................................12 附录 C 不确定度分析示例.......................................................................................13
JJF（冀）136-2017
标准表法液化天然气加气机检定装置
Master Meter Method Verification Deviceof Liquefied Natural Gas Dispenser
2017-12-31实施
2017-10-23发布 目 录 目 录 .........................................................................................................................1 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 构造 .....................................................................................................................2 4.2 原理 .....................................................................................................................2 5 计量特性 ...................................................................................................................3 5.1 扩展不确定度 .....................................................................................................3 5.2 重复性 .................................................................................................................3 5.3 流量范围 .............................................................................................................3 5.4 密封性 .................................................................................................................3 6 校准条件 ...................................................................................................................3 6.1 校准装置要求 .....................................................................................................3 6.2 校准介质 .............................................................................................................4 6.3 校准环境条件 .....................................................................................................4 7 校准项目和校准方法 ...............................................................................................4 7.1 校准项目 .............................................................................................................4 7.2 校准方法 .............................................................................................................4 8 校准结果表达 ...........................................................................................................7 8.1 示值误差 .............................................................................................................7 8.2 重复性 .................................................................................................................8 8.3 不确定度 .............................................................................................................8 9 复校时间间隔 .........................................................................................................10 附录 A 校准记录参考格式....................................................................................... 11 附录 B 校准证书内页参考格式...............................................................................12 附录 C 不确定度分析示例.......................................................................................13
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