仪器设备自校规程

1MJSC勉县安厦建材实验检测有限责任公司受控状态：文件编号：04#─────────────────────────────版次：第一版试验室仪器设备自校规程编写：审核：批准：颁布日期：2012年11月05日实施日期：2012年11月15日勉县安厦建材实验检测有限责任公司发布2前言为保证我公司建材检测的质量的要求，提高我公司实验室检测水平，保证检测试验结果的真实性和准确性，客观反映建设工程质量特组织我公司有关人员组织编制了《实验室仪器自校规程》。本规程的编制，遵循科学性、实用性和可操作性的原则。目录水泥胶砂试模校验方法·····················································································001水泥沸煮箱校验方法························································································006雷氏夹校验方法·······························································································008净浆标准稠度与凝结时间测定仪校验方法·····························································010压碎指标值测定仪校验方法···············································································013卵石或碎石针状规准仪校验方法·········································································015混凝土试模校验方法························································································017混凝土坍落度筒校验方法··················································································019混凝土振动台校验方法·····················································································021建设用卵石、碎石试验标准筛校验方法································································023建设用砂试验标准筛校验方法············································································025砂浆稠度仪校验方法························································································027砂、石容量筒校验方法·················································································································029试验室用混凝土搅拌机校验方法·································································································031试验室用砂浆搅拌机校验方法·····································································································033切土环刀校验方法·························································································································035击实仪校验方法·····························································································································037钢筋冷弯弯芯校验方法·················································································································0403水泥胶砂试模校验方法本方法适用于新的、使用中和修理后的水泥胶砂试模的检验。1概述水泥胶砂试模是《水泥胶砂强度检验方法》GB17671-1999的专用模具。水泥胶砂试模是由底座、隔板和端板组成的三联模（一个模具成型三个试块）。2技术要求2.1试模加工面应光滑、无气孔、整洁、无粗糙不平现象。2.2试模的侧板和端板应由硬质钢材制造，底座可用铸铁或铸钢制造。组装后试模的模腔尺寸长（160±0.8）mm，宽（40±0.2）mm，深(40.1±0.1)mm。2.3试模质量：(6.25±0.25)kg。2.4试模组装后，内壁各接触面应相互垂直，垂直公差不大于0.2mm。2.5端板与隔板工作面平面公差不大于0.03mm。2.6试模组装应紧密，隔板不倾斜晃动，紧固后隔板与底板的间隙应小于0.05mm，且在试件成型时不出现漏浆现象。3校验条件3.1检验用的仪器设备3.1.1游标卡尺，分度值0.02mm；3.1.2钢直尺；3.1.3刀口尺；3.1.4普通级塞尺厚度0.02～0.1mm；3.1.5垂直公差专用检具；3.1.6台秤或电子秤，分度值不大于5g；3.2水泥胶砂试模应在（20±2）℃的室内检验。4校验项目4.1外观、资料4.2试模尺寸4.3试模质量4.4试模内表面平面公差4.5试模垂直公差4.6隔板与底板的间隙5校验方法5.1按技术要求对试模的外观和资料进行检查。5.2用游标卡尺对试模的有效尺寸进行测量。长应在宽度方向的两端检测两点，取平均值；宽、深在长度方向两端和中间检测三点，取平均值。5.3用台秤或电子秤检测试模质量。5.4用刀口直尺和塞尺对试模内表面、端板和底座测量平面公差。5.5用垂直公差专用检具、塞尺测量组装后的试模的垂直公差，分别检测底座与端板、4底座与隔板、隔板与端板各一点。5.6隔板与底板的间隙用塞尺检测。5.7将装满水泥胶砂的试模按水泥胶砂强度检验方法的操作步骤在振动台上振动台上振30s，检查是否由漏浆现象。6校验结果处理全部校验项目均符合标准要求为合格。7校验周期校验周期为半年。8校验记录5水泥胶砂试模校验记录表送校部门：仪器编号：校验编号：校验项目单位技术要求校验数据结果测值平均值试模外观—试模加工面应光滑、无气孔、整洁、无粗糙不平现象。试模尺寸长mm160±0.8mm宽mm40m±0.2mmmm深mm40.1±0.1mmmm试模质量kg6.25±0.25试模内表面平面公差mm≤0.03试模垂直公差底座与端板mm≤0.2底座与隔板mm隔板与端板mm试模隔板与底板的间隙mm0.05校验结论核验：校验：校验日期：年月日6水泥沸煮箱校验方法本方法适用于新的、使用中和修理后的水泥沸煮箱的校验。1概述沸煮箱是GB/T1346-2011《水泥标准稠度用水量、凝结时间、安定性检验方法》测定水泥安定性的一种专用器具。2技术要求2.1仪器外观完好、无锈蚀、无漏水现象；2.2仪器应有接地线，沸煮箱、程控器不得漏电；2.3程序控制器控制时间为：加热至沸腾时间（30±5）min；维持沸腾时间（180±5）min。3校验项目及条件3.1校验项目3.1.1外观3.1.2漏电校验3.1.3程序控制器控制时间校验3.2校验用器具3.2.1电子计时表或秒表3.2.2标准温度计3.2.3电笔4校验方法4.1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。4.2沸煮箱、程控器有无漏电：采用电笔测试。4.3程控器控制时间：采用温度计测温，计时表或秒表计时，准确测出加热至沸腾时间和维持沸腾时间。5校验结果处理全部校验项目均符合技术要求为合格。6校验周期校验周期为一年。7校验记录7水泥沸煮箱校验记录表送校部门：仪器编号：校验编号：校验项目单位技术要求校验数据结果外观—仪器外观完好，无锈蚀、无漏水现象仪器漏电测试—仪器应有接地线沸煮箱、程控器不得漏电程序控制器控制时间测试1加热至沸腾时间min30±52维持沸腾时间min180±5校验结论核验：校验：校验日期：年月日8雷氏夹校验方法1概述雷氏夹是GB/T1346-2001测定水泥净浆安定性的一种专用器具之一。2技术要求2.1雷氏夹应由铜质材料制成，外表光滑，无变形。2.2环模内径（30±1）mm,高（30±1）mm,壁厚（0.5±0.05）mm,开口缝宽≯1.0mm。2.3指针长（150±1）mm，间距（10±1）mm，针直径（2.0±0.2）mm。2.4校验时两指针针尖距离增加范围为（17.5±2.5）mm。且能恢复至原来状态。3校验项目及条件3.1校验项目3.1.1外观3.1.2雷氏夹尺寸3.1.3针距及状态3.2校验用器具3.2.1游标卡尺3.2.2钢直尺3.2.3塞尺3.2.4雷氏膨胀测定仪3.2.5砝码：300g4校验方法4.1外观检查：雷氏夹应由铜制材料制成，外表光滑，无变形。4.2用游标卡尺测量环模尺寸及指针的直径。4.3用塞尺测量开口缝宽。4.4用钢直尺测量指针长度。4.5用雷氏膨胀测定仪进行校验。将雷氏夹竖直放在测定仪的模座上，从膨胀值标尺上读出两根指针针尖的距离（d1）。再将雷氏夹一根指针的根部悬挂在测定仪的悬丝上，在另一根针尖根部挂上300g质量的砝码，测量两根指针针尖的距离（d2）。去掉砝码再测量两指针针尖的距离（d3）。测试两次，取平均值。d3与d1相同。5校验结果处理全部校验项目均符合技术要求为合格。6校验周期校验周期为一年。7校验记录89雷氏夹校验记录表送校部门：仪器编号：校验编号：校验项目单位技术要求校验数据结果测值平均值外观目测铜质材料，外表光滑，无变形环模尺寸内径mm30±1壁厚mm0.5±0.05高度mm30±1开口缝宽mm≯1.0指针尺寸长度mm150±1直径mm2.0±0.2针尖间距（d1）mm10±1挂砝码后针尖距离（d2）mm—取砝码后针尖距离（d3）mm—针尖距离增加距离d2-d1mm17.5±2.5校验结论核验：校验：校验日期：年月日10净浆标准稠度与凝结时间测定仪校验方法本方法适用于新的、使用中和修理后的净浆标准稠度与凝结时间测定仪的校验。1概述净浆标准稠度与凝结时间测定仪是《水泥标准稠度用水量、凝结时间、安定性检验方法》GB/T1346—2001测定水泥标准稠度用水量和凝结时间的专用仪器。2技术要求2.1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。2.2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。2.3试杆、试针的同轴度：在试杆、试针与底座平面接触情况下，试杆、试针的同轴度＜1.0mm。2.4滑动杆直径为11.93～11.98mm。2.5标准稠度测定用试杆有效长度为（50±1）mm，由直径（10±0.5）mm的圆柱形耐腐蚀金属制成。2.6测定凝结时间用试针由钢制成，其有效长度初凝针为（50±1）mm、终凝针为（30±1）mm、直径为（1.13±0.05）mm的圆柱体。2.7终凝针上安装的