|
US$689.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 2052-2023: Calibration Specification for Energy Efficiency Testing Apparatuses of Gas Water Heaters
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 2052-2023 | English | 689 |
Add to Cart
|
6 days [Need to translate]
|
Calibration Specification for Energy Efficiency Testing Apparatuses of Gas Water Heaters
| Valid |
JJF 2052-2023
|
Standard similar to JJF 2052-2023 JJF 2053 JJF 2054 JJF 2051 Basic data | Standard ID | JJF 2052-2023 (JJF2052-2023) | | Description (Translated English) | Calibration Specification for Energy Efficiency Testing Apparatuses of Gas Water Heaters | | Sector / Industry | Metrology & Measurement Industry Standard | | Word Count Estimation | 31,381 | | Date of Issue | 2023-06-30 | | Date of Implementation | 2023-12-30 | | Issuing agency(ies) | State Administration for Market Regulation | JJF 2052-2023: Calibration Specification for Energy Efficiency Testing Apparatuses of Gas Water Heaters
---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
Calibration specification for gas water heater energy efficiency measuring device
ofGasWaterHeaters
2023-12-30 implementation
Released by the State Administration for Market Regulation
Gas water heater energy efficiency measurement
Device Calibration Specifications
Responsible Unit: National Technical Committee on Energy and Resources Measurement
Energy Efficiency Labeling Metrology Sub-Technical Committee
Main drafting unit: Guangdong Institute of Metrology
Participating in the drafting unit: Jiangsu Institute of Metrology
Guangdong Wanhe New Electric Co:, Ltd:
National Gas Appliance Product Quality Supervision and Inspection Center (Foshan)
Shanghai Mengdi Industrial Automatic Control System Co:, Ltd:
This specification entrusts the Energy Efficiency Labeling and Metrology Subcommittee of the National Energy and Resources Metrology Technical Committee
responsible for explaining
The main drafters of this specification:
Wu Zhongjie (Guangdong Institute of Metrology)
Wu Jianou (Guangdong Institute of Metrology)
Mei Shugang (Guangdong Institute of Metrology)
Participating drafters:
Wu Min (Jiangsu Institute of Metrology)
Jiang Xianming (Guangdong Wanhe New Electric Co:, Ltd:)
Zhang Mingwei [National Gas Appliance Product Quality Supervision and Inspection Center (Foshan)]
Li Zhuoyun (Shanghai Mengdi Industrial Automatic Control System Co:, Ltd:)
Table of contents
Introduction (Ⅱ)
1 Scope(1)
2 References(1)
3 Terms and units of measurement(1)
4 Overview(1)
5 Metrological characteristics(1)
6 Calibration conditions(2)
6:1 Environmental conditions (2)
6:2 Gas requirements(2)
6:3 Standards and other equipment (2)
7 Calibration items and methods(4)
7:1 Calibration items(4)
7:2 Calibration method(4)
7:3 Data rounding off (9)
8 Calibration result expression(9)
9 Recalibration interval(10)
Appendix A Calibration Original Record Format of Gas Water Heater Energy Efficiency Measuring Device (For Reference) (11)
Appendix B Format of the inner page of the calibration certificate of the gas water heater energy efficiency measuring device (for reference) (16)
Appendix C Example of Evaluation of Measurement Uncertainty of Thermal Load Calibration Results (20)
Appendix D Example of Evaluation of Measurement Uncertainty of Thermal Efficiency Calibration Results (23)
Introduction
This specification is based on JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1059:1-2012 "Measurement
Evaluation and Representation of Degree of Certainty" and JJF 1071-2010 "Rules for Compilation of National Metrology Calibration Standards":
This specification is published for the first time:
Calibration specification for gas water heater energy efficiency measuring device
1 Scope
This specification stipulates the measurement characteristics, calibration conditions, calibration items and methods,
Calibration result uncertainty assessment and calibration report etc:
This specification is applicable to energy efficiency measuring devices for domestic gas instantaneous water heaters and condensing household gas instantaneous water heaters:
Energy efficiency measurement devices for gas-fired heating water heaters and condensing gas-heating dual-purpose boilers can be implemented with reference to this specification, and other similar
Calibration of test equipment can also refer to this specification:
This specification does not apply to energy efficiency measurement devices for gas-fired volumetric water heaters:
2 References
This specification references the following documents:
JJF 1261:9 Household gas instant water heater and gas heating water heater energy efficiency measurement and testing rules
GB 6932-2015 Household Gas Instant Water Heaters
GB/T 13611-2018 Classification and basic characteristics of town gas
For dated references, only the dated version applies to this specification; for undated references
The latest version (including all amendments) applies to this specification:
3 Terminology and units of measurement
The following terms and units of measurement apply to this specification:
3:1 Heat load heat input
The heat released by the fuel in the burner per unit time:
Note: The unit of measurement for heat load is kW:
3:2 thermal efficiency
Effective utilization of heat as a percentage of the total heat released by complete combustion of gas:
Note: The measurement unit of thermal efficiency is %:
4 Overview
Gas water heater energy efficiency measurement device (hereinafter referred to as "energy efficiency measurement device") is a gas water heater heat
Test rig for load and thermal efficiency: The energy efficiency measuring device measures gas flow, gas temperature, gas pressure,
Outlet water temperature, liquid flow (mass), atmospheric pressure and other parameters are calculated to obtain the heat load and
Thermal efficiency, the device usually includes a thermo-hygrometer, a temperature measurement system, a pressure measurement system and a flow measurement system, etc:
points of equipment:
5 Metrological characteristics
See Table 1 for typical measurement ranges and maximum allowable errors of energy efficiency measurement devices and their instruments:
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJF 2052-2023_English be delivered?Answer: Upon your order, we will start to translate JJF 2052-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of JJF 2052-2023_English with my colleagues?Answer: Yes. The purchased PDF of JJF 2052-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|