JJF(苏)250-2021
液化气体自动灌装秤校准规范
Calibration Specification for AutomaticLiquef ied Gas Filling Instrument
2022-3-1实施
2021-11-24发布
目录
引 言 ........................................................................................................................................................ 1
1 范围 ............................................................................................................................................................. 1
2 引用文件 ..................................................................................................................................................... 1
3 术语与定义 ................................................................................................................................................. 1
3.1 液化气体自动灌装秤 .............................................................................................................................. 1
3.2 称量单元 .................................................................................................................................................. 1
3.3 承载器 ...................................................................................................................................................... 1
3.4 灌装装置 .................................................................................................................................................. 1
3.5 控制装置 .................................................................................................................................................. 1
3.6 预设值 ...................................................................................................................................................... 1
3.7 充装量设定装置 ...................................................................................................................................... 2
3.8 最小秤量 .................................................................................................................................................. 2
3.9 最大秤量 .................................................................................................................................................. 2
4 概述 ............................................................................................................................................................. 2
5 计量性能 ..................................................................................................................................................... 2
5.1 准确度等级 .............................................................................................................................................. 2
5.2 分度值 ...................................................................................................................................................... 2
5.3 计量单位 .................................................................................................................................................. 2
5.4 灌装偏差 .................................................................................................................................................. 2
5.5 误差极限 .................................................................................................................................................. 3
5.6 静态性能 .................................................................................................................................................. 3
6 校准条件 ..................................................................................................................................................... 3
6.1 环境条件 .................................................................................................................................................. 3
6.2 校准设备 .................................................................................................................................................. 3
7 校准项目和校准方法 ................................................................................................................................. 4
7.1 校准前准备 .............................................................................................................................................. 4
7.2 置零和零点跟踪装置检查 ...................................................................................................................... 4
7.3 调整 .......................................................................................................................................................... 4
7.4 集成控制衡器 .......................................................................................................................................... 4
7.5 灌装试验 .................................................................................................................................................. 5
8 校准结果表达 ............................................................................................................................................. 6
8.1 校准结果处理 .......................................................................................................................................... 6
8.2 校准结果的测量不确定度 ...................................................................................................................... 6
9 复校时间间隔 ............................................................................................................................................. 6
附录 A.............................................................................................................................................................. 7
附录 B ............................................................................................................................................................ 10
附录 C ............................................................................................................................................................ 11
引 言
本规范依据 JJF 1001-2011《通用计量术语及定义》和 JJF 1071-2010《国家计量校准规范编写规则》的要求编写。校准方法及计量特性等主要参考了江苏省地方标准DB32/T 3976-2021《液化气体自动灌装衡器通用技术规范》。
本规范依据 JJF 1059.1-2012《测量不确定度评定与表示》给出了灌装偏差校准结果的测量不确定度评定示例。
本规范为首次发布。