中铁集团某中心试验室仪器自校规程

xx集团第二工程有限公司中心试验室仪器自校规程编制：审核：审批：目录1．水泥负压筛析仪校验方法··············································42．维卡仪校验方法··························································73．水泥沸煮箱校验方法····················································104．水泥胶砂试模校验方法·················································135．雷氏膨胀测定仪校验方法··············································166．雷氏夹校验方法··························································197．水泥抗压夹具校验方法·················································228．恒温恒湿养护箱校验方法··············································259．振筛机检验方法··························································2710．容量筒校验方法························································2911．砂、石标准筛校验方法···············································3212．电热干燥箱检验方法··················································3713．压碎指标值测定仪校验方法·········································3914．碎石或卵石针状规准仪校验方法···································4215．碎石或卵石片状规准仪校验方法···································4516．混凝土抗渗仪校验方法···············································4817．混凝土震动台检验方法···············································5118．混凝土坍落度筒校验方法············································5319．混凝土标准养护室检验方法·········································5620．试验室用混凝土搅拌机检验方法···································5921．混凝土及砂浆试模校验/检验方法…………………………….6222．砂浆分层度仪校验方法···············································6623．跳桌校验方法···························································6924．测长仪校验方法························································7225．砂浆稠度仪校验方法··················································7526．道碴筛校验方法························································7827．沥青软化点仪校验方法···············································8128．沥青延度仪校验方法··················································8429．沥青针入度仪校验方法···············································8730．击实仪校验方法························································9031．光电式液、塑限测定仪校验方法···································9332．灌砂仪校验方法························································9633．K30平板载荷试验仪校验方法······································9934．比重瓶校验方法······················································10235．玻璃仪器校验方法···················································10636．金属线材反复弯曲试验机校验方法······························11037．钢筋冷弯弯芯校验方法·············································11338．石灰爆裂蒸煮箱检验方法··········································11639.环刀检验方法·························································11840.砂浆捣棒校验方法···················································12041.动力触探（标贯）仪校验方法……………………………….122水泥负压筛析仪校验方法DQ02-ZS01-03-2004本方法是用于新购和使用中的以及检修后的水泥负压筛析仪的校验一、技术要求1.1数显时间控制误差2min±5s。1.2筛析仪性能，要求密封良好，负压可调范围为4000Pa～6000Pa。1.3水泥细度筛，筛网不得有堵塞、破洞现象，其校正系数应在0.80～1.20范围内。二、校验项目及校验条件2.1校验项目2.1.1数显时间控制器误差。2.1.2筛析仪性能。2.1.3水泥细度筛。2.2校验用器具2.2.1电子记时表。2.2.2天平：称量100g，分度值0.05g。2.2.3水泥细度标准粉。三、校验方法3.1采用电子记时表测试数显时间控制是否准确。3.2用目测检查橡胶密封圈是否老化、损坏，确定筛析义的密封程度。3.3按动电源开关，旋转调压风门，使仪器空转是否能达到负压4000Pa～6000Pa。若达不到，说明抽气效率不够，应打开吸尘器，抖动布袋，将吸附在布袋上的水泥抖下，使布孔畅通，至负压正常为止。3.4将水泥细度筛筛网对着光照看，观察筛网是否有堵塞破洞现象。3.5水泥细度筛修正系数测定方法：3.5.1用一种已知80μm标准筛筛余百分数的水泥细度标准粉（该试样受环境影响筛余百分数不发生变化）作为标准样。按负压筛析法操作程序测定标准样在水泥细度上的筛余百分数。3.5.2试验筛修正系数按下式计算：C=Fn/Ft式中：C——试验筛修正系数；Fn——标准样给定的筛余百分数，%；Ft——标准样在试验筛上筛余百分数，%。修正系数计算至0.01。3.5.3水泥试样筛余百分数结果修正按下式计算：Fc=C·F式中：Fc——水泥试样修正后的筛余百分数，%；C——试验筛修正系数；F——水泥试样修正前的筛余百分数，%。四、校验结果处理全部校验项目均符合技术要求为合格。五、校验周期、记录与证书校验周期为6个月，或使用前校验。校验记录格式见下表，校验证书格式见附录1。注：本方法摘自铁道部《工程试验专用仪器校验检验方法》。xx集团第二工程有限公司校表1水泥负压筛析仪校验记录送校单位仪器编号生产厂家校验号项目校验数据结果一、数显时间控制器误差2min±s二、筛析仪1．密封程度2．负压可调范围MPa～MPa三、水泥细度筛1．是否有堵塞破洞现象2．修正系数测定结果标准样质量mn=25g标准样筛余质量mt=g标准样给定筛余百分数Fn=%标准样实际筛余百分数Ft=mt/mn=%水泥细度筛余修正系数C=Fn/Ft=校验结论：校验员：核验员：校验日期：年月日维卡仪校验方法DQ02-ZS02-03-2004本方法适用于新购和使用中以及检修后的标准法维卡佼的校验。代用法的维卡仪可参照执行。一、技术要求1.1仪器应有铭牌与合格证。1.2滑动杆表面光滑，能靠重力自由下落，不得有紧涩和旷动现象。1.3标尺读数和刻度范围下落距离为0~70mm，标尺刻度清晰，位置固定并挺直。1.4标准稠度测定用试杆有效长度为50±1mm，由直径10±0.5mm的圆柱形耐腐蚀金属制成。1.5测定凝结时间用试针由钢制成，其有效长度初凝针为50±1mm，终凝针为30±1mm，直径为1.13±0.05mm的圆柱体。1.6终凝针上安装的环形附件，顶部外径3.3±0.1mm,底部外径5±0.1mm,高度6.4±0.1mm，安装后，终凝针端部露出环形附件长度0.5±0.1mm。1.7滑动杆下试杆、滑动杆与试针的总质量为300±1g。1.8盛装水泥净浆的试模应由耐腐蚀的、有足够硬度的金属制成，试模为高40±0.2mm、顶内径65±0.5mm、底内径75±0.5mm的截顶圆锥体。二、校验项目及条件2.1校验项目2.1.1外观与材质。2.1.2试杆、试针及环形附件尺寸。2.1.3滑动杆下试杆、滑动杆与试针的总质量。2.1.4截顶圆锥体试模尺寸。2.2校验用器具2.2.1五级天平：称量500g，感量0.1g。2.2.2游标卡尺：量程300mm，分度值为0.02mm。三、校验方法3.1外观检查：技术要求中1.1~1.2条通过手动目测来进行。3.2试杆、试针及环形附件的尺寸，用游标卡尺测量3.3滑动杆与试杆、滑动杆与试针的总质量用天平称量。3.4截顶圆锥体试模尺寸用游标卡尺测量试模深度，试模上、下口内径用游标卡尺在互相垂直的方向上分别测量取平均值。四、校验结果处理全部校验项目均符合技术要求为合格。五、校验周期、记录与证书校验周期为12个月。校验记录格式见下表，校验证书格式见附录1。注：本方法摘自铁道部《工程试验专用仪器校验检验方法》。xx集团第二工程有限公司校表2维卡仪校验记录送校单位仪器编号校验号项目校验数据结果一、外观有无名牌、合格证二、试杆与试针尺寸试杆偏离mm试杆直径mm初凝针长度mm初凝针直径mm终凝针长度mm终凝针直径mm环形附件高度mm顶部外径mm底部外径mm终凝针端部露出环形附件长度mm三、滑动部分总质量滑动杆+试杆总质量g滑动杆+初凝针总质量g滑动杆+终凝针总质量g四、截顶圆锥体试模尺寸上口内径mm下口内径mm高mm校验结论：校验员核验员校验日期年月日水泥沸煮箱校验方法DQ02-ZS03-03-2004本方法适用于新购和使用中以及修理后的水泥沸煮箱的校验。一、技术要求1.1应有产品合格证和产品说明书。1.2仪器外观完好、无锈蚀、无漏水现象。1.3程序控制器控制时间为：加热至沸腾时间30±5min；维持沸腾时间180±5min。1.4仪器应有接地线，沸煮箱、程控器不得漏电。二、校验项目及条件2.1校验项目2.1.1外观。2.1.2漏电校验。2.1.3程序控制器控制时间校验。2.2校验用器具2.2.1电子计时表。2.2.2标准温度计。2.2.3电笔。三、校验方法3.1外观检查：通过目测查看仪器外观是否完好，有无锈蚀，有无漏水现象。3.2沸煮箱、程控器有无漏电现象：采用电笔测试。3.3程控器控制时间：采用温度计测温，记时表记时，准确测出加热至沸腾时间和维持沸腾时间。四、校验