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JJG 535: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| JJG 535-2004 | English | 299 |
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Verification Regulation of Zirconia Oxygen Analyzers
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| JJG 535-1988 | English | 359 |
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Verification Regulation of Zirconia Oxygen Analyzer
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Basic data
| Standard ID | JJG 535-2004 (JJG535-2004) |
| Description (Translated English) | Verification Regulation of Zirconia Oxygen Analyzers |
| Sector / Industry | Metrology & Measurement Industry Standard |
| Classification of Chinese Standard | A61 |
| Classification of International Standard | 17 |
| Word Count Estimation | 11,190 |
| Date of Issue | 2004-09-21 |
| Date of Implementation | 2005-03-21 |
| Older Standard (superseded by this standard) | JJG 535-1988 |
| Quoted Standard | 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1) |
| Regulation (derived from) | 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1) |
| Summary | This standard applies to oxygen measurement limit of not less than 0. 1% of the zirconia oxygen analyzer (hereinafter referred to as the instrument) for initial verification, testing and use of follow-up inspection. |
Similar standards
JJG 631| JJG 635|JJG 551|JJG 535-2004: Verification Regulation of Zirconia Oxygen Analyzers
---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 Zirconia Oxygen Analyzers
National Metrology Verification Regulations of the People's Republic
Zirconia oxygen analyzer
Released on.2004-09-21
2005-03-21 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Zirconia Oxygen Analyzer Verification Procedure
Zers
Replace JJG 535-1988
This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 21,.2004, and
It will take effect on March 21,.2005.
Focal Point. National Environmental Chemometrics Technical Committee
Drafting unit. Shanghai Institute of Metrology and Testing Technology
Zhejiang Institute of Technical Supervision and Testing
This procedure entrusts the National Environmental Chemometrics Technical Committee to explain
Drafters of this procedure.
Cai Jianhua (Shanghai Institute of Metrology and Testing Technology)
Zhang Yanqun (Zhejiang Institute of Technical Supervision and Testing)
table of Contents
1 Scope (1)
2 Overview (1)
3 Metrological performance requirements (1)
3.1 indication error (1)
3.2 Repeatability (1)
3.3 Response time (1)
3.4 Drift (1)
4 General technical requirements (1)
4.1 Appearance (1)
4.2 Insulation resistance (2)
4.3 Dielectric strength (2)
5 measuring instrument control (2)
5.1 Verification conditions (2)
5.2 Verification project (2)
5.3 Verification method (3)
5.4 Processing of verification results (4)
5.5 Verification cycle (4)
Appendix A Zirconium Oxide Oxygen Analyzer Verification Record Format (5)
Appendix B Format of verification certificate and verification result page (6)
Zirconia Oxygen Analyzer Verification Procedure
1 Scope
This procedure is applicable to zirconia oxygen analyzers (hereinafter referred to as instruments) with a lower limit of oxygen content measurement of not less than 0.1%.
First verification, follow-up verification and in-use inspection.
2 Overview
The zirconia oxygen analyzer is mainly used to detect the oxygen content in the mixed gas to achieve safety and festival of the production process.
Energy, environmental protection and the purpose of ensuring product quality.
The working principle of zirconia oxygen sensor. after adding a certain amount of stabilizer by zirconia material, it is burned by high temperature.
It becomes an oxygen ion solid electrolyte at a certain temperature. Baking the platinum electrode on both sides of the material to form a zirconia transmission
Sensor, when the oxygen content between the electrodes on the two sides is different, an electromotive force is generated between the two electrodes, which constitutes an oxygen concentration battery, and two electricity
The interpolar reaction is as follows.
Cathodic reaction. O2 4e→2O2-
Anode reaction. 2O2-→ O2 4e
The zirconia oxygen analyzer uses this characteristic of the zirconia sensor to convert the oxygen in the detected environment into
The electrical signal is then processed by the electronic components and displayed as a concentration value.
3 Metrological performance requirements
3.1 indication error
Measuring range.
Molar fraction of oxygen x (O2). 0.1% to 100%; allowable error limit. ± 5% FS.
Note. For oxygen, the volume fraction is approximately equal to the mole fraction.
3.2 Repeatability
The relative standard deviation should be no more than 1.5%.
3.3 Response time
Response time ≤ 20s
3.4 Drift
3.4.1 Zero drift
The instrument is continuously operated for 4 hours, and the zero drift should not exceed one-half of the allowable error limit.
3.4.2 Range drift
The instrument runs continuously for 4 hours, and the range drift should not exceed one-half of the allowable error limit.
4 General technical requirements
4.1 Appearance
4.1.1 The instrument shall indicate the name of the manufacturing unit, the model and serial number of the instrument, the date of manufacture, and the manufacturing license for measuring instruments.
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