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Industry Standard: JJ, JJ/T, JJT
              
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Std ID Description (Standard Title)
JJG 592-1989 Electron Radiation Source from Medical Accelerator
JJG 593-1989 Verification Regulation of Thermoluminescence Dosimetry Assembly for Personal Monioring of X or γ Radiation
JJG 593-2006 Verification Regulation of Thermoluminescence Dosimetry Systems Used in Personal and Environmental Monitoring for X and Gamma Radiation
JJG 593-2016 Thermoluminescence Dosimetry Systems Used in Personal and Environmental Monitoring for X and γ Radiation
JJG 594-1989 Verification regulation of for Pocket Hardness Meter of International Rubber Hardness Degree
JJG 595-1989 Verification Regulation of Colori-meter and Color Differences Meter
JJG 595-2002 Verification Regulation of Colorimeters and Color Difference Meters
JJG 596-1989 (Chinese Industry Standard)
JJG 596-1999 Verification Regulation of Electrical Energy Meters with Electronics
JJG 596-2012 Verification Regulation of Electrical Meters for Measuring Alternating-current Electrical Energy
JJG 597-1989 Verification Regulation of Verification Equipment for AC Electrical Energy Meter
JJG 597-2005 Verification Regulation of Verification Equipment for AC Electrical Energy Meters
JJG 598-1989 Verification regulation of DC Digital Amperemetor
JJG 599-1989 Verification regulation of Low Distortion Oscillator
JJG 600-1989 Verification Regulation of Storage Oscilloscope
JJG 601-1989 Verification Regulation of Electronic Millisecondmeter Calibrator and Stopwatch Calibrator
JJG 601-2003 Verification Regulation of Time Interval Generator
JJG 60-1984 (Chinese Industry Standard)
JJG 60-1996 Verification Regulation of Scriew Thread Gauge
JJG 60-2012 Verification Regulation of Screw Templates
JJG 602-1996 Verification Regulation of Low Frequency Signal Generator
JJG 602-2014 Low-frequency Signal Generators
JJG 603-1989 Frequency Meter Used Indicator
JJG 603-2006 Verification Regulation of Frequency Meters
JJG 604-1989 Verification Regulation of Special Material Measure for Gauge for Measuring Distance Between Inside Rim Faces of Railway Wheels
JJG 604-2004 Verification Regulation of Measure for Gauge for Measuring Distance Between Inside Rim Faces of Railway Wheels
JJG 605-1989 Verification Regulation of Calibrator for Railway Offset Gauge
JJG 607-1989 Verification Regulation of audio-frequency signal generator
JJG 607-2003 Verification Regulation of Audio-frequency Signal Generator
JJG 608-1989 Verification Regulation of Cantilever-Beam(Izod-Type)Impact Testing Machine
JJG 608-2014 Cantilever-Beam (Izod-Type) Impact Testing Machine
JJG 609-1989 Spring Tension and Compression Testing Machine
JJG 610-1989 Verification Regulation of Barcal Impressor
JJG 610-2013 Type A Barcol Hardness
JJG 611-1989 Model RR3A Interference and Field Strength Measuring Instrument
JJG 61-1980 Verification Regulation of Square
JJG 612-1989 Verification Regulation of Siphon Rainfan Recorder
JJG 613-1989 Verification Regulation of Contact Anemorumbometer
JJG 614-1989 Verification Regulation of Secondary Standard Mercury Barometer
JJG 614-2004 Verification Regulation of Secondary Standard Mercury Barometers
JJG 615-1989 Verification Regulation of Retail Appliance for Vegtable Oil
JJG 615-2006 Verification Regulation of Retail Appliance for Vegetable Oil
JJG 617-1989 Verification Regulation of Digital Temperature Indicators and Controllers
JJG 617-1996 Verification regulation of digital temperaure indicators and controllers
JJG 618-1989 (Chinese Industry Standard)
JJG 618-1999 Verification Regulation of High Precision Mercury-in-Glass Thermometers
JJG 619-1989 Verification Regulation of Gas Flow Calibration Facility to p. V. T. t Technique
JJG 619-2005 Verification Regulation of Gas Flow Calibration Facility to p.V.T.t Technique
JJG 620-1989 Vertey shedding Flow Transducer
JJG 620-1994 Verification Regulation of Critical Flowmeter
JJG 620-2008 Verification Regulation of Critical Flow Venturi Nozzle
JJG 621-1989 (Chinese Industry Standard)
JJG 621-1996 Verification Regulation of Hydraulic Tension Sake
JJG 621-2005 Hydraulic jacks VRof
JJG 621-2012 Verification Regulation of Hydraulic Jacks
JJG 62-1986 Feeler Gauge
JJG 62-1995 Verification Regulation of Feeler Gauge
JJG 62-2007 Verification Regulation of Feeler Gauges
JJG 622-1989 (Chinese Industry Standard)
JJG 622-1997 Verification regulation of megohmmeter
JJG 623-1989 Verification Regulation of Resistance Strain Gauge Indicator
JJG 623-2005 Verification Regulation of Resistance Strain Gauge Indicators
JJG 624-1989 Verification Regulation of Dynamic Calibration of Pressure Transducer
JJG 624-2005 Verification Regulation of Dynamic Pressure Transducers
JJG 625-1989 Verification Regulation of Abbe Refractometer
JJG 625-2001 Verification regulation of abbe refractometer
JJG 626-1989 Verification Regulation of Instrument for Measuring Axial Clearance of Ball Bearing
JJG 626-2003 Verification Regulation of Measuring Instrument for Axial Clearance of Ball Bearings
JJG 627-1989 Verification Regulation of the Printing Curret Meter
JJG 628-1989 Verification Regulation of Direct Reading Current Meter Model SLC9
JJG 629-1989 Verification Regulation for Polycrystalline X-Ray Diffractometer
JJG 629-2014 Verification Regulation for Polycrystalline X-ray Diffractometers
JJG 630-1989 Flame Photometer
JJG 630-2007 Verification Regulation of Flame Photometer
JJG 631-1989 Verification Regulation for Ammonia Automatic Monitor
JJG 631-2004 Ammonia Analyzers
JJF 007-2006 The Y412A type of raw cotton moisture meter calibration specification
JJG 63-1983 (Chinese Industry Standard)
JJG 63-1994 Verification Regulation of Straight Edge
JJG 63-2007 Verification Regulation of Straight Edge
JJG 632-1989 Verification Regulation of Dynamic Force Sensors
JJG 633-1990 Verification Regulation of Gas Roots Flowmeter
JJG 633-2005 Verification Regulation for Gas Displacement Meters
JJG 635-1990 Regulation of verification for carbon monooxide and carbon dioxide infrared gas analyzer
JJG 635-1999 Verification Regulation of Monooxide and Carbon Diaxide Infrared Gas Analyzer
JJG 635-2011 Verification Regulation of Carbon Monoxide and Carbon Dioxide Infrared Gas Analyzer
JJG 637-1990 Verification Regulation of Calibration Vibrators of High Frequency
JJG 637-2006 Verification Regulation of High Frequency Standard Vibrator
JJG 638-1990 Verification regulation of hydraulic vibration generater system
JJG 638-2015 Hydraulic Vibration Testing System
JJG 639-1990 Verification Regulation of Ultrasonic Source for Medical Ultrasonic Diagnostic Equipment
JJG 639-1998 Verification regulation of ultrasonic source for medical ultrasonic diagnostic equipment
JJG 640-1994 Verification Regulation of Differential Pressure Type Flowmeter
JJG 640-2016 Differential Pressure Flowmeters
JJG 641-1990 Verification Regulation of Liquefied Petroleum Gas Tank Car Volume
JJG 641-2006 Verification Regulation of Liquefied Petroleum Gas Tank Car Capacity
JJG 64-1990 Verification Regulation of Super-Low Frequency Signal Generator
JJG 642-1990 Verification Regulation of Spherical Metal Tank Capacity
JJG 642-2007 Verification Regulation of Spherical Metal Tank Capacity
JJG 643-1990 Verification Regulation of Spherical Metal Tank Capacity