Standard Briefing:Stadard ID: GB/T 6147-2025
Stadard Title: Test method for thermoelectric power of precision resistance alloys
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6147-2025 | English | 219 |
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Test method for thermoelectric power of precision resistance alloys
| Valid |
GB/T 6147-2025
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| GB/T 6147-2005 | English | 159 |
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Test method for thermoelectric power of precision resistance alloys
| Valid |
GB/T 6147-2005
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| GB/T 6147-1985 | English | 199 |
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Test method for thermoelectric power of precision resistance alloys
| Obsolete |
GB/T 6147-1985
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Basic Data: | Standard ID | GB/T 6147-2025 (GB/T6147-2025) | | Description (Translated English) | Test method for thermoelectric power of precision resistance alloys | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H21 | | Classification of International Standard | 77.040.01, 17.200.20 | | Word Count Estimation | 10,168 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Older Standard (superseded by this standard) | GB/T 6147-2005 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | Contents, Scope, and Excerpt:GB/T 6147-2025
Test method for thermoelectric power of precision resistance alloys
Precision resistance alloy thermal electromotive force rate test method
ICS 77.040.01; 17.200.20
CCS H21
National Standard of the People's Republic of China
Replace GB/T 6147-2005
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface ... Ⅲ
1 Scope ... 1
2 Normative references ... 1
3 Terms and Definitions ... 1
4 Principle ... 1
5 Test equipment ... 1
5.1 Composition 1
5.2 Standard Thermometer ... 2
5.3 Electrical measuring instruments ... 2
5.4 Switch ... 2
5.5 Constant temperature bath ... 2
5.6 Freezing point thermostat ... 3
5.7 Standard Electrode ... 3
6 Samples and preparation ... 3
6.1 Sample requirements 3
6.2 Sample preparation 3
7 Test Environment ... 3
8 Test Procedure ... 3
9 Data Processing ... 4
10 Precision and Accuracy ... 4
11 Test Report ... 4
ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
This document replaces GB/T 6147-2005 "Test method for thermal electromotive force rate of precision resistance alloys" and is consistent with GB/T 6147-2005.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
Added a summary of methods (see Chapter 4); a)
The test equipment requirements have been changed (see Chapter 5, Chapter 5 of the.2005 edition); b)
The sample requirements have been changed (see 6.1, 4.1 of the.2005 edition); c)
The temperature change requirements of the thermostatic bath in the test method have been changed (see 8.4, 7.4 of the.2005 edition); d)
Added polarity determination rules (see 9.4). e)
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Instrument Functional Materials (SAC/TC 419).
This document was drafted by. Chongqing Materials Research Institute Co., Ltd., Chongqing Chuanyi Automation Co., Ltd. Metal Functional Materials Branch,
Shenzhen CGN Engineering Design Co., Ltd., Daya Bay Nuclear Power Operation and Management Co., Ltd., Chongqing Electronic Science and Technology Vocational University, Shenzhen Industry
Zhan Electronics Co., Ltd., CGN Huizhou Nuclear Power Co., Ltd., Jiangsu Huaxin Alloy Co., Ltd., Chengdu Kaitian Electronics Co., Ltd.,
Zhejiang Taiso Technology Co., Ltd. and Shandong Liqun Alloy Materials Co., Ltd.
The main drafters of this document are. Meng Gang, He Lunying, Tian Guangzheng, Hu Ziyang, Chen Shuzhi, Chen Rong, Zheng Yawen, Huang Meiliang, Chen Guoyi,
Wang Fangjun, Li Feng, Yuan Xinming, Chen Jie, Lu Jiong, Li Guangfeng, Sha Hongwei, Zhang Liqun, Zhu Yahui, Wu Yang, Wang Yong, Jiang Dong,
Si Hengyuan, He Xiangjie, Fu Yueming, Tang Mao.
The previous versions of this document and the documents it replaces are as follows.
First published in 1985 as GB/T 6147-1985, first revised in.2005; -
This is the second revision. -
Precision resistance alloy thermal electromotive force rate test method
ScopeThis document describes the test method for the thermal electromotive force rate of precision resistance alloys, including the principle, test device, specimen and preparation, test environment,
environment, test procedures, data handling, precision and accuracy, and test reporting.
This document is applicable to the test of the thermal electromotive force rate of precision resistance alloys within the range of -65 ℃ to 250 ℃. Other metal materials are
The test of thermal electromotive force rate within the range is performed as reference.
Normative ReferencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies.
in this document.
GB/T 2903 Copper ﹘ Copper Nickel (Constantan) Thermocouple Wire
JB/T 6819.2 Terminology of instrument materials Temperature measuring materials
JB/T 6819.3 Terminology of instrument materials - Resistor materials, conductive materials and electrical contact materials
Terms and DefinitionsThe terms and definitions defined in JB/T 6819.2 and JB/T 6819.3 and the following apply to this document.
3.1
Thermoelectric power
Assuming that the thermoelectric potential is linearly related to temperature, the thermoelectric potential generated for every 1°C temperature difference.
4 Principle
The sample is paired with a standard electrode (platinum wire or copper wire) to form a thermocouple. The thermal electric field generated by each 1°C change in temperature between (t~t0) is
Potential is the thermoelectric potential ratio of the alloy to platinum (or to copper).
5 Test equipment
5.1 Composition
The test device is mainly composed of standard thermometer, electric measuring instrument, switch, constant temperature bath, ice point thermostat and standard electrode.
The schematic diagram of the device is shown in Figure 1.
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