HOME   Cart(10)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

JJF 1261.25-2018 English PDF

US$1889.00 · In stock
Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1261.25-2018: Rules of Metrology Testing for Energy Efficiency of Fans
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1261.25-2018English1889 Add to Cart 10 days [Need to translate] Rules of Metrology Testing for Energy Efficiency of Fans Valid JJF 1261.25-2018

PDF similar to JJF 1261.25-2018


Standard similar to JJF 1261.25-2018

JJF 1016   JJF 1059.1   JJF 1071   JJF 1261.10   JJF 1261.27   JJF 1261.24   

Basic data

Standard ID JJF 1261.25-2018 (JJF1261.25-2018)
Description (Translated English) Rules of Metrology Testing for Energy Efficiency of Fans
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A50
Word Count Estimation 82,842
Date of Issue 2018-12-25
Date of Implementation 2019-03-25
Regulation (derived from) State Administration of Markets, Announcement No.34 of 2018
Issuing agency(ies) State Administration for Market Regulation

JJF 1261.25-2018: Rules of Metrology Testing for Energy Efficiency of Fans

---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.
Rules of Metrology Testing for Energy Efficiency of Fans National Metrology Technical Specification of the People's Republic Ventilation energy efficiency measurement and inspection rules Published on.2018-12-25 2019-03-25 implementation State Market Supervisory Administration released Fan energy efficiency Metrology detection rules Focal Point. Energy Efficiency Labeling of National Legal Metrology Management Metrology Technical Committee Metrology and Inspection Subcommittee Main drafting unit. Shanxi Institute of Metrology Participated in drafting unit. Xi'an Jiaotong University Zhejiang Institute of Metrology Hubei Institute of Metrology and Testing Technology Shaanxi Blower (Group) Co., Ltd. This Code entrusts the National Legal System of Metrology and Metrology Management Metrology Technical Committee The committee is responsible for explaining The main drafters of this specification. Han Jianshu (Shanxi Institute of Metrology) Wang Jianxun (Shanxi Institute of Metrology) Li Zhengqiang (Shanxi Institute of Metrology) Participate in the drafters. Zhang Yiyun (Xi'an Jiaotong University) Cui Chao (Zhejiang Institute of Metrology) Tu Jun (Hubei Institute of Metrology and Testing Technology) Yao Yongli [Shaanxi Blower (Group) Co., Ltd.]

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 3.1 Ventilation efficiency limit (1) 3.2 Unit (1) 3.3 Use area (1) 3.4 Fan Air Power Pu (1) 3.5 Impeller Power Pr (2) 3.6 Fan efficiency ηr (2) 3.7 ventilator unit efficiency ηe (2) 3.8 Energy efficiency rating (2) 4 Overview (2) 5 Measurement requirements (2) 5.1 Energy Efficiency Labeling (2) 5.2 Energy efficiency indicators (energy consumption) (2) 5.3 Energy efficiency rating (5) 6 Detection conditions (5) 6.1 Environmental conditions (5) 6.2 Measuring equipment (6) 6.3 Measurement uncertainty (6) 7 Test items and methods (7) 7.1 Sampling principles and methods (7) 7.2 Sample Testing (7) 7.3 Original Record (9) 7.4 Data Processing (9) 8 test results (9) 8.1 Energy efficiency index (energy consumption) measurement and acceptance results (9) 8.2 Test results evaluation criteria (9) 8.3 Test Report (10) Appendix AA-type outlet side test plenum energy efficiency measurement method (12) Appendix BC type inlet side test duct energy efficiency measurement method (24) Appendix C Example of unequal evaluation of ventilator energy efficiency measurement (36) Appendix D Ventilation Energy Efficiency Measurement Sampling Sheet (Format) (66) Appendix E Original Record of Ventilation Energy Efficiency Measurement (format) (67) Appendix F Ventilation Energy Efficiency Measurement Report (Format) (71)

Introduction

In order to standardize the energy efficiency measurement and testing of ventilators that implement energy efficiency labeling management, JJF 1261.1-2017 The requirements of the Energy Efficiency Measurement and Measurement Rules for Energy Products are formulated. This specification is the first release. Ventilation energy efficiency measurement and inspection rules

1 Scope

This specification specifies centrifugal and axial flow fans for general use, centrifugal induced draft fans for industrial steam boilers, and electricity. Station boiler centrifugal blower and induced draft fan, power station axial flow fan, air conditioning centrifugal fan (hereinafter referred to as ventilation) Machine) energy efficiency measurement requirements, measurement and testing procedures, measurement and detection methods, test results evaluation criteria and test reports Notice the content. This specification does not apply to special structures and special applications such as jet fans, cross-flow fans, roof fans, etc. Fan. This specification is applicable to the measurement and inspection of the energy efficiency of the ventilator. The commissioned inspection can be carried out with reference to this specification. Units that sell ventilators can also be tested with reference to this specification. The ventilator to be tested shall be the product that the producer self-tests, or the goods that the seller imports or sells.

2 reference files

This specification refers to the following documents. JJF 1261.1-2017 energy efficiency measurement and testing rules for energy products Standardized air duct performance test for GB/T 1236 industrial fans GB 19761-2009 ventilator energy efficiency limit value and energy efficiency rating For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms and units of measure

The following terms and units of measurement apply to this specification. 3.1 ventilator energy efficiency limit value minimumalowablevaluesofenergyefficiencyforfan The minimum allowable value of the efficiency of the ventilator is allowed under specified test conditions. 3.2 unit unit A device consisting of an alternating current motor and a ventilator. 3.3 use area servicerange External rotor motor and air conditioning centrifugal pass when the ventilator efficiency is greater than or equal to 90% of the maximum ventilator efficiency Operating range when the fan unit efficiency is greater than or equal to 90% of the maximum unit efficiency; the fan product sample gives Performance range. 3.4 Fan Air Power Pu fanairpowerPu The conventional output power is the product of the mass flow and the unit mass of the ventilator or the inlet volume flow, and the compressibility repair. The product of the positive coefficient kP and the fan pressure, measured in kW.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1261.25-2018_English be delivered?

Answer: Upon your order, we will start to translate JJF 1261.25-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1261.25-2018_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1261.25-2018_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+ countries

Question 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.