JJG667-1997-液体容积式流量计检定规程.pdf

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1、中华人民共和国国家计量检定规程JJG667-1997液体容积式流量计LiquidPositiveDisplacementFlowMeter1997一11一20发布1998一06一01实施国家技术监督局发布.TTG667-1997r)’、液体容积式流量计.心勺.-。。弓.。.心JJG667-1997.。-.心0检定规程.代替JJG232-1981.六。，..勺。..心JJG235-1990。..今令V.R.ofLiquidPositive..勺MG634-1990勺..心。、..‘，.、，.0.0.o.0.‘，.‘.0.0.0.‘，‘0.0.

2、公DisplacementFlowMeter本检定规程经国家技术监督局于1997年11月20日批准，并自1998年06月01日起施行。归口单位:河南省技术监督局起草单位:河南省计量测试研究所中国计量科学研究院本规程技术条文由起草单位负责解释JJG667-1997本规程主要起草人:肖汉卿(河南省计量测试研究所)王池(中国计量科学研究院)孔庆彦(河南省计量测试研究所)参加起草人:杜书利(河南省计量测试研究所)张辉生(河南省计量测试研究所)杨明是(国家水大流量计量站、开封仪表厂)王淑娟(航空航天工业总公司流量计量站)朱流训(湖北省计量科学研究所)

3、JJG667-1997目录一概述·······················································································⋯⋯(1)二技术要求·......................................................................................(1)三检定条件·................................................................

4、......................(4)(一)实验室检定··············································································⋯⋯(4)(二)在线检定··················，······························································⋯⋯(6)四检定项目和检定方法·.....................................................

5、..................(6)(一)随机文件和外观检查··································································⋯⋯(6)(二)耐压强度试验·································，···················。·····················⋯⋯(6)(三)压力损失试验·································。·····································

6、····⋯⋯(6)(四)基本误差与重复性检定·······························································⋯⋯(7)五检定结果处理和检定周期·.................................................................(11)附录1始动流量··········································································⋯⋯(12)附录2最小被测量······

7、··································································⋯⋯(13)附录3检定证书背面格式······························································⋯⋯(14)JJG667-1997液体容积式流量计检定规程本规程适用于新制造、使用中和修理后的液体容积式流量计及流量传感器的检定。一概述1利用机械测量元件把流动的液体连续不断地分割(隔离)成单个的体积部分，以计量液体总体积量的流量计称为液体容积式流量计(以

8、下简称为流量计)。流量计用于测量封闭管道中满管流的流量，主要测量累积流量(即总量)。2本规程所指的流量计包括以下流量计及流量传感器:a.腰轮(又称罗茨)流量计;b.椭圆齿轮(又称