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JJF 2031-2023: Calibration Specification for Fuel Consumption Instruments Based on Carbon Balance Method
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Calibration Specification for Fuel Consumption Instruments Based on Carbon Balance Method
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JJF 2031-2023
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Standard similar to JJF 2031-2023 JJF 1033 JJF 1050 JJF 1030 Basic data | Standard ID | JJF 2031-2023 (JJF2031-2023) | | Description (Translated English) | Calibration Specification for Fuel Consumption Instruments Based on Carbon Balance Method | | Sector / Industry | Metrology & Measurement Industry Standard | | Word Count Estimation | 24,241 | | Date of Issue | 2023-03-15 | | Date of Implementation | 2023-09-15 | | Issuing agency(ies) | State Administration for Market Regulation | JJF 2031-2023: Calibration Specification for Fuel Consumption Instruments Based on Carbon Balance Method
---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
JJF 2031-2023
Calibration specification for carbon balance method fuel consumption meter
Released on 2023-03-15
2023-09-15 Implementation
Released by the State Administration for Market Regulation
Carbon Balance Fuel Consumption Meter
Calibration specification
Responsible Unit: National Legal Metrology Management Metrology Technical Committee Motor Vehicles
Inspection and Testing Sub-Technical Committee
Main drafting unit: Hebei Institute of Metrology Supervision and Testing
Zhejiang Institute of Metrology
Participating in the drafting unit: Gansu Provincial Institute of Metrology
Shijiazhuang Huayan Transportation Technology Co:, Ltd:
Zhejiang Zheda Mingquan Technology Co:, Ltd:
Shaanxi Institute of Metrology
This specification entrusts the National Legal Metrology Management Metrology Technical Committee for motor vehicle inspection and testing sub-technology
committee responsible for explaining
The main drafters of this specification:
Xu Languo (Hebei Institute of Metrology Supervision and Testing)
Wang Junping (Hebei Provincial Institute of Metrology Supervision and Testing)
Ye Zhenzhou (Zhejiang Institute of Metrology)
Participating drafters:
Gao Decheng (Gansu Institute of Metrology)
Di Jianhui (Shijiazhuang Huayan Transportation Technology Co:, Ltd:)
Kangye (Zhejiang University Mingquan Technology Co:, Ltd:)
Han Lijiang (Shaanxi Institute of Metrology)
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(1)
4 Overview(1)
5 Metrological characteristics(1)
5:1 Flow measuring device(1)
5:2 Concentration measuring device(2)
5:3 Fuel consumption meter(2)
6 Calibration conditions(2)
6:1 Environmental conditions (2)
6:2 Measuring standards and other equipment (2)
7 Calibration Items and Calibration Methods(3)
7:1 Flow measuring device(3)
7:2 Concentration measuring device(4)
7:3 Fuel consumption meter(6)
8 Calibration result expression(8)
9 Recalibration interval(9)
Appendix A Standard Gas and Its Concentration Requirements (10)
Appendix B Carbon Dioxide Injection Method (11)
Appendix C Example of Uncertainty Evaluation of Fuel Consumption Meter Measurement Results (13)
Appendix D Calibration Raw Record Format(16)
Appendix E Calibration Certificate (Inner Page) Contents (18)
Introduction
JJF 1001-2011 "General Metrology Terms and Definitions", JJF 1071-2010 "National Metrology Calibration Specification Compilation"
"Rules", JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" together constitute the basis for formulating this calibration specification
Basic series of specifications:
This specification mainly refers to GB/T 1885-1998 "Petroleum Meter", GB/T 18566-2011 "Road Transport
Vehicle Fuel Consumption Detection and Evaluation Method", JT/T 1013-2015 "Carbon Balance Method Vehicle Fuel Consumption Detector"
compiled:
This specification is published for the first time:
Calibration specification for carbon balance method fuel consumption meter
1 Scope
This specification is applicable to the calibration of the carbon balance method fuel consumption meter:
2 References
This specification references the following documents:
JJF 1001 General Metrology Terms and Definitions
GB/T 1885-1998 Petroleum meter
GB/T 18566-2011 Detection and evaluation method of fuel consumption of road transport vehicles
JT/T 1013-2015 Carbon balance method vehicle fuel consumption detector
For dated references, only the dated version applies to this specification; for undated references,
Its latest edition (including all amendments) applies to this specification:
3 Terminology and units of measurement
The terms and definitions defined in JT/T 1013-2015 apply to this specification:
3:1 Terminology
Based on the mass sum of the carbon mass in the exhaust after the combustion of automobile fuel in the engine is equal to the sum of the carbon mass before combustion
According to the law of quantity conservation, it is a device for measuring the fuel consumption of automobiles:
3:1:2 oil gas conversion device oilgasconverter
Composed of mass flowmeters, engines, generators, electric loads, control systems, etc:, it can measure fuel consumption per unit time
It is a device that can change the fuel consumption of the engine and generate exhaust gas by adjusting the power load:
3:2 Units of measurement
The measurement results of the gas content of each component of the fuel consumption meter are expressed by volume fraction, where:
CO, CO2 volume fraction units expressed as "%" or "10-2";
The unit of HC volume fraction is expressed as "10-6":
4 Overview
The carbon balance method fuel consumption meter (hereinafter referred to as the fuel consumption meter) is a method that collects and measures the exhaust gas emitted by automobiles, and calculates the
An instrument for obtaining the fuel consumption of a vehicle:
The fuel consumption meter is mainly composed of exhaust gas dilution collection device, diluted exhaust gas flow measurement device (hereinafter referred to as flow measurement device)
device), a carbon-containing gas concentration measurement device (hereinafter referred to as the concentration measurement device), and a measurement and control system:
5 Metrological characteristics
5:1 Flow measuring device
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