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GB/T 33651-2017 English PDF

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GB/T 33651-2017: In-situ measurements of heat loss through thermal insulation of equipment and pipes -- Infrared image method
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 33651-2017	English	159	Add to Cart	3 days [Need to translate]	In-situ measurements of heat loss through thermal insulation of equipment and pipes -- Infrared image method	Valid	GB/T 33651-2017

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Basic data

Standard ID	GB/T 33651-2017 (GB/T33651-2017)
Description (Translated English)	In-situ measurements of heat loss through thermal insulation of equipment and pipes -- Infrared image method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	F04
Classification of International Standard	27.010
Word Count Estimation	8,890
Date of Issue	2017-05-12
Date of Implementation	2017-12-01
Quoted Standard	GB/T 4132; GB/T 8174-2008; GB/T 17357-2008; GB/T 19870; JJF 1187
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the use of infrared thermal imaging method to test the surface temperature and heat flux density and its distribution, determine and analyze the thermal insulation of the cold (cold) loss of the terms and definitions, test instruments, field tests, test results and processing, test report Wait. This standard applies to GB/T 8174 of the provisions of the two, three tests, and on-site evaluation of normal conditions of equipment and pipe insulation layer of thermal insulation performance.

GB/T 33651-2017: In-situ measurements of heat loss through thermal insulation of equipment and pipes -- Infrared image 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.
In-situ measurements of heat loss through thermal insulation of equipments and pipes - Infrared image method ICS 27.010 F04 National Standards of People's Republic of China Measurement of surface heat loss on equipment and pipe insulation Infrared thermal imaging In-situmeasurementsofheatlossthroughthermalinsulation ofequipmentsand 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is composed of the National Energy Resources and Management Standardization Technical Committee Subcommittee on Energy Application Technology (SAC/TC20/SC5) Go back. The drafting of this standard. Building Materials Industry Technical Supervision Research Center, Beijing Century Construction Technology Co., Ltd., Guangzhou Sa special red Co., Ltd., Dalian Guangmingyuan Energy Saving Technology Research and Testing Center Co., Ltd., Wuxi Mingjiang Insulation Material Co., Ltd. The main drafters of this standard. Dai Zizhu, Jin Fujin, Song Xinhua, Ren Yue, Dai Jianfeng, Zhou Zhizhong. Measurement of surface heat loss on equipment and pipe insulation Infrared thermal imaging

1 Scope

This standard specifies the use of infrared thermal imaging method to test the surface temperature and heat flux density and its distribution, determine and analyze the thermal insulation layer of heat (Cold) loss of the terms and definitions, test instruments, field testing, test results and processing, test reports. This standard applies to GB/T 8174 of the provisions of the two, three tests, and on-site evaluation of normal conditions of equipment and pipe insulation layer must Thermal performance.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Thermal insulation materials and related terms GB/T 4132 Test and Evaluation of Adiabatic Effect of Equipment and Pipeline GB/T 8174-2008 GB/T 17357-2008 Equipment and pipelines - Thermal insulation on surface heat loss - Determination of heat flow method and surface temperature method GB/T 17357-2008 GB/T 19870 Industrial Inspection Infrared Thermal Imager JJF1187 thermal imager calibration specification

3 terms and definitions

GB/T 4132 and GB/T 19870 and the following terms and definitions apply to this document. 3.1 Emissivity emissivity The ratio of the object to the outside radiation energy and the blackbody radiant energy. 3.2 Infrared thermal map A picture taken with an infrared thermal imager indicating the apparent radiation temperature of the surface of the object being photographed. 3.3 Reference temperature referencetemperature The surface temperature of the object used to modify the infrared camera is measured on the surface of the measured object.

4 test instrument

4.1 Infrared thermal imager should meet the requirements of GB/T 19870. Infrared thermal image temperature resolution should not be less than 0.1 ℃, temperature measurement uncertainty Should be less than ± 2 ℃, the revised temperature measurement uncertainty should be less than 0.5 ℃. Infrared thermal imager with reference to GB/T 19870 and JJF1187 Calibration. 4.2 According to the requirements of the determination level, other performance parameters should be used to meet the requirements of Table 1 test instrument. Test instrument should be based on the provisions of the standard Set the cycle to the relevant departments to carry out calibration or self-check.

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