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JJG 535-2004 English PDF

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JJG 535-2004: Verification Regulation of Zirconia Oxygen Analyzers
Status: Valid

JJG 535: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 535-2004	English	299	Add to Cart	3 days [Need to translate]	Verification Regulation of Zirconia Oxygen Analyzers	Valid	JJG 535-2004
JJG 535-1988	English	359	Add to Cart	3 days [Need to translate]	Verification Regulation of Zirconia Oxygen Analyzer	Obsolete	JJG 535-1988

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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	11,176
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Older Standard (superseded by this standard)	JJG 535-1988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.

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)

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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