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JJG 141-2013: Verification Regulation of Working Noble Metal Thermocouples
Status: Valid JJG 141: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 141-2013 | English | 629 |
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5 days [Need to translate]
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Verification Regulation of Working Noble Metal Thermocouples
| Valid |
JJG 141-2013
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| JJG 141-2000 | English | 799 |
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5 days [Need to translate]
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Verification Regulation of Working Noble Metal Thermocouples
| Obsolete |
JJG 141-2000
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| JJG 141-1993 | English | RFQ |
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3 days [Need to translate]
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(Railway Torque Wrench Calibrator verification procedures)
| Obsolete |
JJG 141-1993
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| JJG 141-1988 | English | RFQ |
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9 days [Need to translate]
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(Working with 10 platinum and rhodium, platinum and rhodium platinum thermocouple 13)
| Obsolete |
JJG 141-1988
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PDF similar to JJG 141-2013
Basic data | Standard ID | JJG 141-2013 (JJG141-2013) | | Description (Translated English) | Verification Regulation of Working Noble Metal Thermocouples | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A54 | | Classification of International Standard | 17.200 | | Word Count Estimation | 27,246 | | Older Standard (superseded by this standard) | JJG 141-2000 | | Quoted Standard | JJF 1007-2007; GB/T 1598-2010; GB/T 16701-2010; GB/T 16839.1; GB/T 16839.2 | | Regulation (derived from) | AQSIQ Announcement No. 88 of 2013 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to: the length of not less than 700mm detachable Work with platinum and rhodium platinum (hereinafter referred to as S -type) thermocouples, working with platinum and rhodium 13 Platinum (hereinafter referred to as R -type) and worki | JJG 141-2013: Verification Regulation of Working Noble Metal Thermocouples---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.
Verification Regulation of Working Noble Metal Thermocouples
State verification procedures People's Republic of China
Working with precious metal thermocouples
Issued on. 2013-07-04
2014-01-04 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Working with precious metal thermocouple test procedures
les
Replacing JJG 141-2000
Focal point. the National Technical Committee of temperature measurement
The main drafting units. China Testing Technology Research Institute
People's Liberation Army Fifth seven hundred nineteen factory
Participated in the drafting. Kunming generous Automatic Control Technology Co., Ltd.
Zhejiang Institute of Metrology
Sinopec Southwest Branch
The temperature measurement procedures commissioned the National Technical Committee is responsible for interpretation
The main drafters of this procedure.
EDUCATION JOURNAL (China Testing Technology Research Institute)
Fu Zhiyong (China Testing Technology Research Institute)
Liu Xudong (People's Liberation Army Fifth seven hundred nineteen factory)
Zhao Jing (China Testing Technology Research Institute)
Drafters participate.
Li Hongfu (Kunming generous Automatic Control Technology Co., Ltd.)
Fang Xiaoqin (Zhejiang Institute of Metrology)
Wang (Sinopec Southwest Branch)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Terms (1)
4 Overview (1)
4.1 Principle (1)
4.2 Classification and chemical composition (1)
4.3 Level (1)
5 metering performance requirements (2)
5.1 The maximum permissible error (2)
6 General Requirements (3)
6.1 Appearance (3)
6.2 diameter of the electrode (3)
6.3 identification (3)
7 control of measuring instruments (3)
7.1 test conditions (3)
7.2 Verification Project (4)
7.3 Verification Methods (5)
7.4 Data Processing (7)
7.5 Verification Results Processing (8)
7.6 test cycle (8)
Appendix A test recording format (9)
Appendix B test certificates/test results in the notice page format (12)
Appendix C precious metal thermocouple thermal emf value and differential thermal emf entire Baidu and test points (14)
Appendix D Working with platinum and rhodium 10 - platinum thermocouple test results Uncertainty Evaluation (17)
Introduction
The procedures in place JJG 141-2000 "Working with precious metal thermocouples" for normative work with precious metals Thermoelectric
Even the verification work.
This revision is based on the national standard GB/T 16839.1 "Thermocouples Part 1. indexing table", GB/T 16839.2
"Thermocouples Part 2. Tolerances" and GB/T 1598-2010 "platinum and rhodium 10 - platinum thermocouple wire, platinum and rhodium 13 platinum
Thermocouple wire, platinum and rhodium 30 - 6 platinum and rhodium thermocouple wires ", GB/T 16701-2010" precious metal, hot metal thermocouple wire
EMF measurement methods "and JJF1002-2010" national verification procedures write rules "basis. Thermocouple Yun
Difference according to the provisions of GB/T 16839.2, the thermocouple and electrode diameter deviation according to GB/T 1598-2010 the provisions of,
Revised edition of JJG 141-2000. Compared with JJG 141-2000, in addition to editorial changes outside the main changes
as follows.
--- Increased introduction;
--- Increasing the terminology section;
--- For the thermocouple electrode diameter tolerances have been adjusted;
--- Remove the standard R type thermocouple, increasing the number of standard thermocouple requirements;
--- Verification device for supporting devices such as measuring instruments, test furnace technical requirements have been adjusted;
--- Delete the part of the production operation processing thermocouple;
--- Adds some new thermocouple calibration operation;
--- Remove the test R-type thermocouple silver freezing point;
--- Verification of read data bits put forward new requirements, dividing the value of difference between the two has been adjusted;
--- S-class for Ⅰ type, R-type and grade Ⅱ B-type thermocouple test cycle has been adjusted;
--- Remove the original statutes of the calculation example;
--- Appendix increases the Measurement Uncertainty Verification Results for the analysis example.
The previous versions of the release JJG 141-2000 case.
--- JJG 141-1988;
--- JJG 290-1982.
Working with precious metal thermocouple test procedures
1 Scope
The order applies to work not less than 700mm length with detachable platinum and rhodium 10 - platinum (hereinafter referred to as S-type) thermoelectric
Even working with platinum and rhodium 13 - platinum (hereinafter referred to as R-type) thermocouple and work with platinum and rhodium 30 - platinum and rhodium 6 (hereinafter referred to as type B)
Thermocouple initial verification, use and subsequent verification check.
2. References
This procedure references the following documents.
JJF1007-2007 temperature measurement terminology and definitions
GB/T 1598-2010 platinum and rhodium 10 - platinum thermocouple wire, platinum and rhodium 13 - platinum thermocouple wire, platinum and rhodium 30 - 6 platinum and rhodium heat
Galvanic wire
GB/T 16701-2010 precious metal, metal thermocouple wire thermal EMF measurement
GB/T 16839.1 Thermocouples - Part 1. indexing table
GB/T 16839.2 Thermocouples - Part 2. Tolerances
For dated references, only the dated edition applies to this procedure; undated reference documents
Member, the latest edition (including any amendments) applies to this procedure.
3 Terms
3.1 Annealing annealing
The material is heated to a specific temperature, slow cooling after the heat process, or to eliminate the machining operations to be caused by
Force variation (JJF1007-2007 "temperature measurement terms and the term" 3.42).
4 Overview
4.1 Principle
Precious metal thermocouples (hereinafter referred to as thermocouple) is made from two different precious metal conductors based on the Seebeck effect
Thermoelectric thermometer. Two different two noble metal electrodes is called thermocouple conductors, one end of the generally two welding electrodes
Together to form a joint, is placed in the field of temperature measurement when temperature, when the other end of the temperature measurement requirements put in a constant temperature
Field. It is known as welded end measuring end and the other end is called the reference terminal.
4.2 Classification and chemical composition
Thermocouple classification and chemical composition are shown in Table 1.
4.3 rating
According to different requirements and thermal characteristics, S-type and R-type thermocouples are divided into grade Ⅰ, Ⅱ grade, B-type thermocouple into
Ⅱ grade, Ⅲ grade.
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