Current Category: CN-JJG - National Metrology and Inspection Regulations JJG
本规程适用于在线振动管液体密度计的首次检定、后续检定和使用中检查。
This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of liquid chromatography-atomic fluorescence spectrometers.
This regulation applies to the initial inspection, subsequent inspections, and in-use inspections of electric vehicle AC charging piles (hereinafter referred to as charging piles).
This regulation applies to the initial verification, subsequent verification, and in-use inspection of non-vehicle-mounted chargers for electric vehicles (hereinafter referred to as "chargers").
This procedure applies to the initial verification, subsequent verification, and in-use inspection of automotive emission gas testers (hereinafter referred to as testers). The minimum measurement range of the tester should meet the following requirements: HC: (0～2 000)×10-6; CO: (000～500)×10-2; CO2: (00～160)×10-2; NO: (0～4 000)×10-6; O2: (00～210)×10-2
This regulation applies to the initial verification, subsequent verification, and in-use inspection of digital display monitors (hereinafter referred to as "monitors") worn on the human chest to measure, record, and alert the wearer of the personal dose equivalent HP(10) caused by external X and γ radiation. The applicable X and γ radiation energy range is 48 keV to 1.5 MeV. The monitors covered by this regulation must be small, integrated, wearable devices (excluding fixtures) with dimensions no exceeding: length 15 cm/width 8 cm/thickness 3 cm, with a total volume of 250 cm3; and a total weight, including accessories, no exceeding 200 g. This regulation does not apply to the verification of personal dose equivalent HP(0.07) monitors for weak penetrating X and γ radiation. This regulation does not apply to the verification of personal monitors for neutron and β radiation. This regulation does not apply to the verification of passive measurement devices such as film dosimeters, thermoluminescent dosimeters, or quartz wire electrostatic detectors.
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.
This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of frequency standard comparators based on frequency difference multiplication technology, dual mixing time difference technology, and digital dual mixing time difference technology.
This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of logic analyzers.
This regulation applies to the initial verification, subsequent verification, and in-use inspections of fuel dispensers (hereinafter referred to as "dispensers").
This regulation applies to the initial verification, subsequent verification, and in-use inspection of the wheel-set wheel spacing and disc position measuring devices (hereinafter referred to as "measuring devices") on railway vehicles.