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Terms and Definitions Used in Reference Materials
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This specification specifies the commonly used terms and definitions of reference materials, and is applicable to the formulation
2024-09-01 category：National Metrology Standard (JJ)+ View
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Evaluation of Uncertainty in Chemical Analysis Measurement
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This technical specification follows the basic principles of the Guide to the Expression of Uncertainty in Measurement (GUM) and t
2024-09-01 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Rotational Viscometers
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This regulation applies to the initial verification, subsequent verification and in-use inspection of rotational viscometers (here
2024-09-01 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Vertical Metal Tank Capacity
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JJG 168-2005 Verification Procedure for Capacity of Vertical Metal Tanks JJG168-2005 Standard download decompression password: www
2024-09-01 category：National Metrology Standard (JJ)+ View
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Calibration specification for Gear involute Measuring instruments
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JJF 1124-2004 Calibration specification for gear involute measuring instruments JJF1124-2004 Standard download decompression passw
2024-09-01 category：National Metrology Standard (JJ)+ View
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Calibration specification for Gear Helix Measuring Instruments
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JJF 1122-2004 Gear Helix Measuring Instrument Calibration Specification JJF1122-2004 Standard download decompression password: www
2024-09-01 category：National Metrology Standard (JJ)+ View
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Verification Regulation of Metallic Brinell Hardness Testers
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JJG 150-2005 Verification Procedure for Metal Brinell Hardness Tester JJG150-2005 Standard download decompression password: www.bz
2024-09-01 category：National Metrology Standard (JJ)+ View
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Gas O2 Analyzer with Galvanic Cell
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JJG 945-1999 Galvanic cell gas oxygen analyzer JJG945-1999 standard download decompression password: www.bzxz.net This procedure i
2024-09-01 category：National Metrology Standard (JJ)+ View
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