标准检测方法与测定原理 (Analytical Principle)
分析方法库 (SOP)
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方法精密度与加标回收率指标 (Precision & Recovery Metrics)
实验室质控
准确度等级 ···························································································· (2) 5.2 示值误差 ································································································ (2) 5.3 重复性···································································································· (2) 6 通用技术要求 ··························································································· (2) 6.1 随机文件 ································································································ (2) 6.2 铭牌和标识 ···························································································· (3) 6.3 外观 ······································································································· (3) 6.4 保护功能 ·····························
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2 引用文献................................................................................................... (1) 3 术语和计量单位 ....................................................................................... (1) 3。
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1 术语 ....................................................................................................... (1) 3。
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2 计量单位 ................................................................................................ (1) 4 概述 ........................................................................................................... (1) 4。
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1 工作原理 ································································································ (1) 4。
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2 组成 ······································································································· (2) 4。
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3 输出信号 ································································································ (2) 5 计量性能要求 ··························································································· (2) 5。
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1 准确度等级 ···························································································· (2) 5。
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2 示值误差 ································································································ (2) 5。
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3 重复性···································································································· (2) 6 通用技术要求 ··························································································· (2) 6。
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1 随机文件 ································································································ (2) 6。
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2 铭牌和标识 ···························································································· (3) 6。
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3 外观 ······································································································· (3) 6。
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4 保护功能 ································································································ (3) 7 计量器具控制 ··························································································· (3) 7。
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1 检定条件 ································································································ (3) 7。
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2 在线密度计安装 ···················································································· (5) 7。
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3 检定项目 ································································································ (5) 7。
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4 密封性 ·································································································· (6) 7。
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5 检定方法 ································································································ (6) 7。
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6 检定程序 ································································································ (6) 7。
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7 计算方法 ································································································ (7) 7。
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8 检定结果处理 ························································································ (9) 7。
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新增内容
9 检定周期 ································································································ (9) 5 附录A 压力密度瓶法················································································ (10) 附录B 标准密度计法················································································ (13) 附录C 仪表系数计算················································································· (15) 附录D 油品密度温度系数表 ···································································· (17) 附录E (18°C~26°C)钨酸钠水溶液密度温度系数表 ·························· (18) 附录F (0~40)°C纯水密度表(不含空气) ············································ (19) 附录G 油品压缩系数表 ··········································································· (21) 附录H 钨酸钠水溶液毛细常数表 ···························································· (23) 附录I 水压缩系数表 ················································································· (24) 附录J 空气密度计算公式 ·········································································· (25) 附录K 在呢振动式液体密度计实验记录格式 ·········································· (27) 附录L 检定证书内页格式 ········································································· (29) 6 引言 JJF1002-2010《国家计量检定规程编写规则》,JJF1001-2011《通用计量术语及定义》,JJF1059.1-2012《测量不确定度评定与表示》共同构成支撑本规程修订工作的基础性系列规范。 本规程与JJG370-2019《在线振动管液体密度计检定规程》相比,除编辑性修改外,主要技术变化如下: - 增加了液体密度标准物质的使用; - 增加了准确度等级数量; - 修改了仪器拟合系数计算部分。 本规程的历次版本信息为: JJG 370-1998 《工作振动管液体密度计试行检定规程》 JJG 370-2007 《在线振动管液体密度计检定规程》 JJG 370-2019 《在线
核心起草科研机构与龙头企业矩阵：
参加起草单位: 本规程委托全国质量密度计量技术委员会负责解释
