1 Application Scope
This regulation is applicable to initial verification, subsequent verification and in-use inspection of on-line gas chromatograph for gas trade transaction and atmospheric environment testing and analysis (hereinafter referred as “the instrument”). This regulation is also used as a reference for measurement performance test of the on-line gas chromatograph in type evaluation and stereotyping appraisement.
2 General
The on-line gas chromatograph is an instrument that is installed at the working site, directly connected to the object to be measured through the gas pipeline, and automatically measures the content of the corresponding gas components through automatic acquisition and automatic injection, and can store and remotely transmit the measurement results. It is mainly used for real-time continuous detection of gas component content in natural gas or atmospheric environment.
3 Metrological Performance Requirements
On-line gas chromatograph shall be in accordance with Table 1 for its major metrological performance.
1 Application Scope
2 General
3 Metrological Performance Requirements
4 General Technical Requirements
5 Measuring Instrument Control
5.1 Verification Conditions
5.2 Verification Items
5.3 Verification Method
5.4 Treatment of Verification Results
5.5 Verification Cycle
Annex A Reference Format of Verification Certificate (Inside Page)
Annex B Reference Format of Verification Result Notice (Inside Page)
Annex C Reference Format of Verification Record
Annex D Calibration of Carrier Gas Flow Rate
Annex E Reference Content of Each Component in Natural Gas Standard Gas
