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Calibration Specification for Reinforced Concrete Covermeter and Floorslab Thickness Tester
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JJF 1224-2009 Calibration specification for steel bar cover and floor thickness measuring instrument JJF1224-2009 Standard compres
2024-09-04 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Ball Pneumatic Dead Weight Tester
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JJG 942-2010 Float-type pressure gauge JJG942-2010 Standard download decompression password: www.bzxz.net This regulation is appli
2024-09-02 category：National Metrology Standard (JJ)+ View
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Designation and Classification Code for Measuring Instruments
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JJF 1051-2009 Naming and Classification Coding of Measuring Instruments JJF1051-2009 |tt||Standard download decompression password
2024-09-02 category：National Metrology Standard (JJ)+ View
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Measurement and Test Norm of Thermostatic Bath’s Metrological Characteristics
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JJF 1030-2010 Technical performance test specification for constant temperature bath JJF1030-2010 |tt||Standard download decompres
2024-09-02 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Test Equipment for Vehicle Speed Radar Measurement Meters
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JJG 771-2010 Verification Procedure for Motor Vehicle Radar Speedometer Verification Device JJG771-2010 Standard download decompre
2024-09-02 category：National Metrology Standard (JJ)+ View
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Calibration Specification for Gear Dual-flank Meshing Measuring Instrument
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JJF 1233-2010 Calibration specification for double-flank gear meshing measuring instruments JJF1233-2010 Standard download decompr
2024-09-02 category：National Metrology Standard (JJ)+ View
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Calibration Guideline of the Temperature Block Calibrators
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JJF 1257-2010 Calibration method of dry-block temperature calibrator JJF1257-2010 Standard download decompression password: www.bz
2024-09-02 category：National Metrology Standard (JJ)+ View
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Raw Cotton Moisture Tester
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This procedure applies to the initial verification, subsequent verification and in-use inspection of resistance-type raw cotton mo
2024-09-02 category：National Metrology Standard (JJ)+ View
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