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Position: Chinese Standard in English/JJG 225-2001
JJG 225-2001   Verification Regulation of Heat Meters (English Version)
Standard No.: JJG 225-2001 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 10,000 words Price(USD):250.0 remind me the price change

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Implemented on:2002-3-1 Delivery: via email in 1 business day
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Standard No.: JJG 225-2001
English Name: Verification Regulation of Heat Meters
Chinese Name: 热能表检定规程
Professional Classification: JJ    Metering
Issued by: AQSIQ
Issued on: 2001-12-4
Implemented on: 2002-3-1
Status: valid
Language: English
File Format: PDF
Word Count: 10,000 words
Price(USD): 250.0
Delivery: via email in 1 business day
1 Scope This regulation is applicable to the initial verification, subsequent verification, in-service inspection, type approval and prototype test of heat meters. Verification of heat meters used to measure the absorbed heat quantity may refer to this regulation.
1 Scope 2 References 3 Terms and Definitions 3.1 Heat Meter 3.2 Sub-assemblies of A Heat Meter 3.3 Ruted Operating Conditions 3.4 Total Verification 3.5 Component Verification 4 General 4.1 Working Principle 4.2 Structure 4.3 Calculation Formulas of Heat Energy 5 Metrological Performance Requirements 5.1 Airtightness and Strength of Flow-rate Sensor 5.2 Accuracy Grade of Heat Meter 5.3 Error Limit of Heat Meter 5.4 Repeatability Er of Non-impeller Flow-rate Sensor 5.5 Lower Temperature Limit of Heat Meter 5.6 Maximum Pressure Drop of Flow-rate Sensor 6 General Technical Requirements 7 Control of Measuring Instruments 7.1 Verification Conditions 7.2 Verification Items 7.3 Verification Methods 7.4 Treatment of Verification Result 7.5 Verification Cycle Appendix A Type Approval and Prototype Test Appendix B Enthalpy Value and Density of Water Appendix C Thermal Coefficient Table
Referred in JJG 225-2001:
* GB 2423-1989
* GB 6587-1986
* GB/T 17626-1998
* GB/T 8622-1997
* GB/T 778.3-1996
JJG 225-2001 is referred in:
* CJ/T 357-2010 Verification facilities of heat meters
* GB 50204-2015 Code for acceptance of constructional quallty of concrete structures
Code of China
Standard
JJG 225-2001  Verification Regulation of Heat Meters (English Version)
Standard No.JJG 225-2001
Statusvalid
LanguageEnglish
File FormatPDF
Word Count10,000 words
Price(USD)250.0
Implemented on2002-3-1
Deliveryvia email in 1 business day
Detail of JJG 225-2001
Standard No.
JJG 225-2001
English Name
Verification Regulation of Heat Meters
Chinese Name
热能表检定规程
Chinese Classification
Professional Classification
JJ
ICS Classification
Issued by
AQSIQ
Issued on
2001-12-4
Implemented on
2002-3-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
10,000 words
Price(USD)
250.0
Keywords
JJG 225-2001, JJG/T 225-2001, JJGT 225-2001, JJG225-2001, JJG 225, JJG225, JJG/T225-2001, JJG/T 225, JJG/T225, JJGT225-2001, JJGT 225, JJGT225
Introduction of JJG 225-2001
1 Scope This regulation is applicable to the initial verification, subsequent verification, in-service inspection, type approval and prototype test of heat meters. Verification of heat meters used to measure the absorbed heat quantity may refer to this regulation.
Contents of JJG 225-2001
1 Scope 2 References 3 Terms and Definitions 3.1 Heat Meter 3.2 Sub-assemblies of A Heat Meter 3.3 Ruted Operating Conditions 3.4 Total Verification 3.5 Component Verification 4 General 4.1 Working Principle 4.2 Structure 4.3 Calculation Formulas of Heat Energy 5 Metrological Performance Requirements 5.1 Airtightness and Strength of Flow-rate Sensor 5.2 Accuracy Grade of Heat Meter 5.3 Error Limit of Heat Meter 5.4 Repeatability Er of Non-impeller Flow-rate Sensor 5.5 Lower Temperature Limit of Heat Meter 5.6 Maximum Pressure Drop of Flow-rate Sensor 6 General Technical Requirements 7 Control of Measuring Instruments 7.1 Verification Conditions 7.2 Verification Items 7.3 Verification Methods 7.4 Treatment of Verification Result 7.5 Verification Cycle Appendix A Type Approval and Prototype Test Appendix B Enthalpy Value and Density of Water Appendix C Thermal Coefficient Table
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Keywords:
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