sspc漆膜厚度测量

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1、SSPC:TheSocietyforProtectiveCoatingsPAINTAPPLICATIONSPECIFICATIONNO.2MeasurementofDryCoatingThicknesswithMagneticGagesSSPCPA2使用磁性测厚仪测量涂层干膜厚度1.Scope范围1.1GENERAL:Thisstandarddescribestheprocedurestomeasurethethicknessofadryfilmofanonmagneticcoatingappliedonamagneticsubstrateusi

2、ngcommerciallyavailablemagneticgages.Theseproceduresareintendedtosupplementmanufacturers’operatinginstructionsforthemanualoperationofthegagesandarenotintendedtoreplacethem.总则：本标准描述了使用市场上可买到的磁性测厚仪来测量施工在磁性底材上的非磁性涂层的干膜厚度的程序。该程序作为仪器手工操作说明的补充，但并不替代设备制造商的操作说明书。1.2Theproceduresfora

3、djustmentandmeasurementaredescribedfortwotypesofgages:pull-offgages(Type1)andelectronicgages(Type2).校准和测量的规程适用于两类测厚仪：拉开式测厚仪（类型1）和电子测厚仪（类型2）。1.3Thestandarddefinesaproceduretodetermineifthefilmthicknessoveranextendedareaconformstotheminimumandthemaximumlevelsspecified.Thisprocedu

4、remaybemodifiedwhenmeasuringdryfilmthicknessonovercoatedsurfaces(seeNote7.1).本标准定义了用来确定漆膜厚度是否超出规定的最小值和最大值的范围的程序。该程序在覆涂过的表面测量干膜厚度的时候可能会被修改。2.DescriptionandUse描述和使用2.1DEFINITIONS定义2.1.1GageReading:Asinglereadingatonepoint.测厚仪读数：单个测点获取的单个读数值2.1.2SpotMeasurement:Theaverageofatleas

5、tthreegagereadingsmadewithina4cm(1.5inch)diametercircle.单个组测量值：在直径4cm（1.5英寸）的圆周范围内至少3个测厚仪读数的平均值。2.1.3Calibration:Thecontrolledanddocumentedprocessofmeasuringtraceablecalibrationstandardsandverifyingthattheresultsarewithinthestatedaccuracyofthegage.Calibrationsaretypicallyper

6、formedbythegagemanufacturerorbyaqualifiedlaboratoryinacontrolledenvironmentusingadocumentedprocess.Thestandardsusedinthecalibrationaresuchthatthecombineduncertaintiesoftheresultantmeasurementarelessthanthestatedaccuracyofthegage.校准：测量可追踪的校准标准试块的受控和备有证明文件的程序并验证其结果的在测厚仪规定的精度范围之

7、内。校准一般比较典型地是由仪器制造商来进行的，或者由合格的实验室在受控环境下使用受控的具文件证明的程序来进行。校准过程中使用的标准试块结合了测量结果的诸多不确定性因素，低于仪器所规定的精度。2.1.4Verification:Anaccuracycheckperformedbytheuserusingknownreferencestandards.验证：精度检查使用已知的参比标准试块来进行。2.1.5Adjustment:Theactofaligningthegage’sthicknessreadingstomatchthoseofaknowns

8、ampleinordertoimprovetheaccuracyofthegageonaspecificsurfaceorinaspecificporti