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GB/T 36242-2018Volume conversion device for gas meter (English PDF)

燃气流量计体积修正仪

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 7, 2018

Implementation date

January 1, 2019

Scope

GB/T 36242-2018 is the English-translated version of 燃气流量计体积修正仪.

GB/T 36242-2018 is the Chinese standard for volume conversion devices fitted to gas meters, which convert the measured gas volume using temperature (T), temperature and pressure (PT) or temperature, pressure and compression factor (PTZ).

It applies to devices powered by DC supply or battery.

It gives terms, definitions and symbols, classification and measurement principles, and technical requirements such as rated working conditions, metrological performance and maximum permissible errors, structure, indicating devices, alarm functions, influence quantities, electromagnetic compatibility, overload pressure, durability, enclosure protection and explosion protection.

It also sets the test methods, factory and type inspection, marking and accompanying documents, and packaging, transport and storage, with an annex on calculating the gas compression factor using the Redlich-Kwong equation. It was issued on 7 June 2018 and has applied since 1 January 2019.

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Document preview — GB/T 36242-2018

National Standard of the People's Republic of China

ICS: 17.120.10
Classification: N 12

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 terms and definitions and symbols
3.1 Terms and Definitions
3.2 Symbol
4 Classification and measurement principle
4.1 Classification
4.2 Measurement principle
5 Technical requirements
5.1 Rated working conditions
5.2 Metrology performance requirements
5.3 Structural requirements
5.4 Appearance
5.5 indicating device
5.6 Safety devices and alarm functions
5.7 Installation Requirements
5.8 Impact Quantity
5.9 Electromagnetic compatibility
5.10 Pressure sensor overload pressure
5.11 Corrector Overload Pressure (Mechanical Strength)
5.12 Durability
5.13 Shell protection
5.14 Explosion-proof performance
6 Test method
6.1 Test conditions
6.2 Correction device main indication value and maximum allowable error (MPE) test for each component
6.3 Repeatability test
6.4 Structure Verification
6.5 Visual inspection
6.6 indicating device inspection
6.7 Safety device and alarm function test
6.8 Installation Requirements Check
6.9 Impact test
6.10 Electromagnetic Compatibility Test
6.11 Overload pressure test of pressure sensor
6.12 Corrector Overload Pressure (Mechanical Strength) Test
6.13 Durability test
6.14 Shell protection test
6.15 Explosion-proof performance check
7 Inspection rules
7.1 Factory inspection
7.2 Type inspection
8 logo and accompanying documents
8.1 Mark
8.2 accompanying documents
9 Packaging, transport and storage
9.1 Packing
9.2 Transportation
9.3 Storage
Appendix A (Normative) Calculating the gas compression factor using the Redlick-Kwong equation
Reference

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms and definitions of gas flowmeter volume corrector (hereinafter referred to as the modifier) and the symbols, classification and measurement principles, techniques Technical requirements, test methods, inspection rules, signs, labels and accompanying documents, packaging, transportation and storage.

This standard applies to DC power supply or battery power supply, with temperature (T) conversion, temperature pressure (PT) conversion or temperature pressure compression Gas flowmeter correction device for sub-PTZ conversion function.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 packaging storage and transportation icon

GB/T 2423.1 Environmental testing of electrical and electronic products - Part 2. Test methods Test A. Low temperature

GB/T 2423.2 Environmental testing of electric and electronic products - Part 2. Test method Test B. High temperature

GB/T 2423.3 Environmental testing - Part 2. Test method test Cab. constant damp heat test

GB/T 2423.4 Environmental testing of electric and electronic products - Part 2. Test methods Test Db. alternating heat and damp (12h 12h ring)

GB/T 2423.56 Environmental testing of electric and electronic products - Part 2. Test methods Test Fh. Wideband random vibration (digital control System and guidelines

GB 3836.1 Explosive atmosphere - Part 1. General requirements for equipment

Explosive atmospheres - Part 2. Equipment protected by flameproof enclosure "d"

Explosive atmospheres - Part 4. Equipment protected by intrinsically safe "i"

GB/T 4208-2017 enclosure protection grade (IP code)

GB 4943.1 Safety of information technology equipment - Part 1. General requirements

General technical conditions for GB/T 13384 mechanical and electrical product packaging

GB/T 13611 town gas classification and basic characteristics

GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

GB/T 17626.3 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test

GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient burst immunity test

GB/T 17626.5 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test

GB/T 17626.6 Electromagnetic compatibility test and measurement technology Conducted disturbance immunity of RF field induction

GB/T 17626.8 Electromagnetic compatibility test and measurement technology power frequency magnetic field immunity test

GB/T 17626.29 Electromagnetic compatibility test and measurement technology DC power input port voltage dip, short interruption and voltage change Immunity

GB/T 17747.1 Calculation of natural gas compression factors Part 1. Introduction and guidance

GB/T 17747.2 Calculation of natural gas compression factors - Part 2

GB/T 17747.3 Calculation of natural gas compression factors - Part 3

GB/T 18603 Natural Gas Metering System Technical Requirements

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 33 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3836.1

Similar standards

GB/T 18659-2023|GB/T 25922-2023|GB/T 36241-2018|GB/T 28848-2012|GB/T 17805-2025|GB/T 28714-2023

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