Standards

JJG 219-2008 Replaced

JJG 219-2008 Track Gage for Standard Gauge Railway

This regulation applies to the initial inspection, subsequent inspections, and in-use verification of standard gauge-type and digital display-type railway gauge rulers (hereinafter referred to as "gauge rulers"). It can also be used as a reference for the traceability of measurement values for other railway gauge rulers.

Publish Date: 2008-02-13

JJG 404-2008 Replaced

JJG 404-2008 Calibrator for Railway Track Gage

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of standard gauge railway gauge verifiers. It can also be used as a reference for the traceability of measurement values for other gauge verifiers.

Publish Date: 2008-02-13

JJG 1035-2008 Replaced

JJG 1035-2008 Optical Spectrum Analyzers in Telecommunication

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of telecommunications spectrometers (hereinafter referred to as spectrometers). For the type evaluation of spectrometers, the requirements for relevant metrological performance can be implemented in accordance with this procedure.

Publish Date: 2008-01-31

JJG 757-2007 Replaced

JJG 757-2007 Ionometers

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of general ion meters and dedicated ion meters used to determine ion activity by electrode potential method. The metrological performance tests during the evaluation of ion meter models and prototype trials can also be conducted in accordance with this procedure.

Publish Date: 2007-11-21

JJG 527-2007 Replaced

JJG 527-2007 Automatic Monitor System for Vehicles Speeding

This regulation applies to the initial verification, subsequent verification, and in-use inspection of the speed measurement performance of automatic speed monitoring systems for motor vehicles (hereinafter referred to as "monitoring systems") that are fixedly installed on roads and use the radar Doppler frequency shift principle or the ground-sensing coil speed measurement principle.

Publish Date: 2007-08-21

JJG 62-2007 Replaced

JJG 62-2007 Feeler Gauges

This procedure is applicable to gauges with a thickness of (0.02 to 3.00) mm and a length of (75 to 300) mm.
The initial verification, subsequent verification, and in-use inspection of gauges.

Publish Date: 2007-08-21

JJG 680-2007 Replaced

JJG 680-2007 Samplers for Stack Dust

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of dust samplers used to measure the concentration of dust in gases by the filtration and weighing method, with a sampling flow rate of no more than 60 L/min and an exhaust gas flow rate range of (5～30) m/s.

Publish Date: 2007-08-21

JJG 1026-2007 Replaced

JJG 1026-2007 Medical Diagnostic X-ray Radiation Source for Spiral Computed Tomography(CT)

This verification procedure is applicable to the verification of X-ray radiation sources for medical diagnostic spiral computed tomography (CT) devices that have been newly installed, are in use, or have undergone repairs to components that affect imaging performance.

Publish Date: 2007-08-02

JJG 1028-2007 Replaced

JJG 1028-2007 X-ray Radiation Source for Radiotherapy Simulating Localization

This procedure is only applicable to the initial verification, subsequent verification, and in-use inspection of X-ray radiation sources used for radiation therapy simulation before or during radiation therapy. Its operating voltage does not exceed 400kV.
This procedure is not applicable to X-ray radiation sources that utilize computed tomography simulation positioning technology.

Publish Date: 2007-08-02

JJG 688-2007 Replaced

JJG 688-2007 Vehicle Exhaust Emissions Measuring Instruments

This procedure applies to the initial verification, subsequent verification, and in-use inspection of automotive emission gas testers (hereinafter referred to as testers). The relevant items of the type evaluation test can be carried out in accordance with this procedure.

Publish Date: 2007-08-02

JJG 59-2007 Replaced

JJG 59-2007 Piston Gauge

This procedure is applicable to the initial verification, subsequent verification, and in-service inspection of piston pressure gauges with a measurement range of up to 06MPa to 500MPa and a working medium of liquids.

Publish Date: 2007-06-14

JJG 272-2007 Replaced

JJG 272-2007 Aneroid Barometer & Aneroid Barograph

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of empty-case barometers and empty-case aneroid barometers.

Publish Date: 2007-06-14