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JJF(豫)177-2014 混凝土坍落度仪校准规范

简介
JJF(豫)177-2014
混凝土坍落度仪校准规范
Calibration Specificationfor Concrete Slump Instruments
2014-10-20实施
2014-08-20发布
目 录
1范围.........................................(1)
2 引用文件....................................(1)
4计量特性.........................................(1)
5校准条件........................................(2)
5.1环境条件......................................(2
5.2校准用设备............................................(2)
6校准项目和校准方法.....................................(3)
6.1 坍落度筒底面内径示值误差..............................(3)
6.2坍落度筒顶面内径示值误差..................................(4)
6.3 坍落度筒的高度示值误差..................................(4)
6.4坍落度筒底面和顶面的平面度....................................(4)
6.5底板上表面的平面度....................................(4)
6.6 坍落度筒底面与顶面的平行度................................(4)
6.7平尺与底板上表面的平行度............................(4)
6.8坍落度筒同轴度................................(4)
6.9测量标尺的示值误差.......................................(5)
6.10 测量标尺对底板上表面的垂直度.............................(5)
6.1捣棒长度示值误差........................(5)
6.1捣棒直径示值误差.......................................(6)
7校准结果表达...............................................(6)
8复校时间间隔............................................(6)
附录A...........................................................(7)
附录B..........................................................(8)