JJF(晋) 91-2024 李氏密度瓶校准规范

CalibrationSpecificationofLeChatelierFlaskforDeterminingDensity山西省市场监督管理局发布JJF（晋）91－2024李氏密度瓶校准规范李氏密度瓶校准规范CalibrationSpecificationofLeChatelierFlaskforDeterminingDeJJF（晋）91－2024JJF（晋）91－2024I II 1 1 1 1 2 3 3 3 3 3 3 3 3 4 5 6 7 8 附录E弯月面的确定方法 14JJF（晋）91－2024JJF（晋）91－20241李氏密度瓶校准规范李氏密度瓶LeChatelierFlaskfordeter体积，从而计算出试样单位体积的质量即为密度。李氏密度瓶瓶颈处刻线标称容量JJF（晋）91－20242 50mm69mm25mm36mm8mmmL2423222120C69mm25mm36mm8mmmL2423222120TC20C10250mL25065mm90mm图1李氏密度瓶示意图注：以上指标不做合格性判定，仅供参考。JJF（晋）91－20243），使李氏密度瓶、水温和室温相平衡，水温与室温李氏密度瓶在标准温度20℃时的实际容量按下式计算:V=m.K(t)（1）JJF（晋）91－20244VΔV=Vs-V20VV）；g)进行校准的日期，如果与校准结果的有效性和应用h)如果与校准结果的有效性应用有关时，应对被校样品的抽样程j)本次校准所用测量标准的溯源性及有效性说明；p)未经实验室书面批准，不得部分复制证书JJF（晋）91－20246标称容量（mL）水温℃实测质量m（g）查表K(t)实际容量V20(mL)平均值（mL）容量示值误差扩展不确定度U（mL）k=2JJF（晋）91－2024JJF（晋）91－20248温/℃0.00.10.20.30.40.50.60.70.80.91.002001.002011.002031.002041.002061.002071.002091.002101.002121.002131.002151.002161.002181.002191.002211.002221.002241.002251.002271.002291.002301.002321.002341.002351.002371.002391.002401.002421.002441.002461.002471.002491.002511.002531.002541.002561.002581.002601.002621.002641.002661.002671.002691.002711.002731.002751.002771.002791.002811.00283201.002851.002861.002881.002901.002921.002941.002961.002981.003001.00303211.003051.003071.003091.003111.003131.003151.003171.003191.003221.00324221.003271.003291.003311.003331.003351.003371.003391.003411.003431.00346231.003491.003511.003531.003551.003571.003591.003621.003641.003661.00369241.003721.003741.003761.003781.003811.003831.003861.003881.003911.00394251.003971.003991.004011.004031.004051.004081.004101.004131.004161.00419JJF（晋）91－20249 /0.00.10.20.30.40.50.60.70.81.002081.002091.002101.002111.002131.002141.002151.002171.002181.002211.002221.002231.002251.002261.002281.002291.002301.002321.002351.002361.002381.002391.002411.002421.002441.002461.002471.002511.002521.002541.002551.002571.002581.002601.002621.002631.002671.002681.002701.002721.002741.002761.002771.002791.00281201.002851.002871.002891.002911.002921.002941.002961.002981.00300211.003041.003061.003081.003101.003121.003141.003151.003171.00319221.003231.003251.003271.003291.003311.003331.003351.003371.00339231.003441.003461.003481.003501.003521.003541.003561.003591.00361241.003661.003681.003701.003721.003741.003761.003791.003811.00383251.003891.003911.003931.003951.003971.004001.004021.004041.00407JJF（晋）91－2024.K(t)m——被校李氏密度瓶内纯水的质量值，g；则质量测量引入的不确定度分量u(m)为:D.3.2测定水温对应的修正系数引入的不确定度分量u(K(t))D.3.2.1测温设备读数引入的不确定度分量u(K(t)1)JJF（晋）91－2024匀分布，则温度计读数引入的不确定度分量u(K(t)1D.3.2.2测温设备示值误差引入的不确定度分量u(K(t)2)数K(t)最大相差0.00006mL/g，服从均匀分布，则温度计示值误u(K(t)2)则测定水温对应的修正系数引入的不确定度分量u(K(t))为D.3.2.3标称容量不准引入的不确定度分量u(VS)JJF（晋）91－2024表3标准不确定度分量汇总表标准不确定度分量不确定度来源灵敏系数标称容量不准u(VS)1输入量u(m)质量测量重复性u(m1)K(t)电子天平u(m