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JJF 2020-2022: Testing Specification for Vapor Recovery Systems of Gasoline Dispensing Facilities
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Testing Specification for Vapor Recovery Systems of Gasoline Dispensing Facilities
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JJF 2020-2022
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Basic data | Standard ID | JJF 2020-2022 (JJF2020-2022) | | Description (Translated English) | Testing Specification for Vapor Recovery Systems of Gasoline Dispensing Facilities | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Word Count Estimation | 28,243 | | Date of Issue | 2022-12-27 | | Date of Implementation | 2023-06-27 | | Issuing agency(ies) | State Administration for Market Regulation | JJF 2020-2022: Testing Specification for Vapor Recovery Systems of Gasoline Dispensing Facilities
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Metrology Technical Specifications of the People's Republic of China
Technical specification for detection of gas station oil and gas recovery system
Released on 2022-12-27
2023-06-27 Implementation
Released by the State Administration for Market Regulation
Gas station oil and gas recovery system
Testing Specifications
Responsible Unit. National Flow Measurement Technical Committee Liquid Flow Sub-Technical Committee
Main drafting unit. Chongqing Institute of Metrology and Quality Inspection
Beijing Institute of Metrology and Testing Sciences
Participating in the drafting unit. Beijing Sanying United Petroleum Technology Co., Ltd.
Token Hengshan Technology (Guangzhou) Co., Ltd.
Zhengxing Technology Co., Ltd.
Guizhou Institute of Metrology and Testing
This specification is interpreted by the Liquid Flow Sub-Technical Committee of the National Flow Measurement Technical Committee
The main drafters of this specification.
Li Xia (Chongqing Institute of Metrology and Quality Inspection)
Shi Qufei (Beijing Institute of Metrology and Testing Sciences)
Liu Yahui (Chongqing Institute of Metrology and Quality Inspection)
Participating drafters.
Cai Hongpu (Beijing Sanying United Petroleum Technology Co., Ltd.)
Zhang material [Token Hengshan Technology (Guangzhou) Co., Ltd.]
Li Yi (Zhengxing Technology Co., Ltd.)
Wang Jun (Guizhou Metrology and Testing Institute)
Table of contents
Introduction (Ⅱ)
1 Scope(1)
2 References(1)
3 Terms and units of measurement(1)
3.1 Terminology(1)
3.2 Units of measurement(2)
4 Overview(2)
4.1 Structure (2)
4.2 Working principle(2)
4.3 Use(3)
5 Structural and functional requirements (3)
5.1 General requirements (3)
5.2 Pipeline and interface requirements (3)
5.3 Dispenser Requirements(3)
5.4 Storage Tank Requirements(3)
6 Technical performance requirements (4)
6.1 Hermeticity(4)
6.2 Liquid resistance(4)
6.3 Gas-liquid ratio (4)
7 Detection conditions (4)
7.1 Detection of environmental conditions (4)
7.2 Measuring instruments and supporting equipment (4)
8 Detection method(5)
8.1 Structural and functional checks (5)
8.2 Leakage detection (6)
8.3 Liquid resistance detection (7)
8.4 Detection of gas-liquid ratio (8)
9 Expression of test results(9)
10 Retest interval(9)
Appendix A Oil Vapor Recovery System Leakage Minimum Residual Pressure Limits (10)
Appendix B Oil Vapor Recovery System Inspection Original Record Reference Format (11)
Appendix C Report (Inner Page) Reference Format (15)
Appendix D Measurement Uncertainty Evaluation Example (16)
Introduction
This specification refers to GB 20952-2020 "Emission Standard of Air Pollutants for Gas Stations", HJ/T 431-2008
"Technical Specifications for Acceptance and Testing of Air Pollution Control Projects for Oil Storage Depots and Gas Stations", GB 50156-2012 "Automobile Refueling and Refueling
Specifications for Design and Construction of Gas Stations and JJG443-2015 "Fuel Fuel Dispenser"
The current situation of production, use and testing of station oil and gas recovery system is compiled. Its format requirements refer to JJF 1071-2010
"Rules for Compilation of National Metrology and Calibration Standards", the uncertainty evaluation refers to JJF 1059.1-2012 "Evaluation of Measurement Uncertainty"
Determination and Representation".
This specification is published for the first time.
Technical specification for detection of gas station oil and gas recovery system
1 Scope
This specification is applicable to the airtightness, liquid resistance and
The detection of gas-liquid ratio and the detection of oil and gas recovery systems for other media can be carried out by reference.
2 References
This specification references the following documents.
JJG443 fuel dispenser
JJF 1001-2011 general measurement terms and definitions
GB 20952-2020 Air Pollutant Emission Standard for Gas Stations
GB 50156-2012 Code for design and construction of automobile refueling stations
HJ/T 431-2008 Technical Specifications for Acceptance and Testing of Air Pollution Control Projects for Oil Storage Depots and Gas Stations
For dated references, only the dated version applies to this specification; for undated references
document, its latest version (including all amendments) applies to this specification.
3 Terminology and units of measurement
3.1 Terminology
The following terms and definitions defined in JJF 1001-2011 apply to this specification.
3.1.1 Oil and gas vapor
A mixture of volatile organic compounds and air produced during refueling, unloading and storage at gas stations.
[Source. GB 20952-2020, 3.3, modified]
Gasoline (E10) containing 10% or less ethanol fuel or gasoline containing 30% or less methanol fuel
(M30, M15, etc.).
A system for centralized collection and storage of oil and gas generated during oil storage and refueling at gas stations.
[Source. GB 20952-2020, 3.6, modified]
3.1.4 Liquid resistance dynamic backpressure
Condensate liquid stays in the oil and gas pipeline or causes resistance when gas passes through the pipeline due to other reasons.
3.1.5 tightness
The airtightness of the oil and gas recovery system of the gas station under a certain gas pressure state.
The ratio of the volume of oil vapor collected during refueling to the volume of gasoline added to the tank at the same time.
3.1.7 vacuum-assist
In the oil gas recovery system of the gas station, a vacuum generating device is used to assist in recovering the oil gas generated during the refueling process.
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