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JJG 662-2005 English PDF

US$339.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 662-2005: Verification regulation of paramagnetic oxygen analyzer
Status: Valid

JJG 662: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 662-2005	English	339	Add to Cart	3 days [Need to translate]	Verification regulation of paramagnetic oxygen analyzer	Valid	JJG 662-2005
JJG 662-1990	English	439	Add to Cart	4 days [Need to translate]	Verification Regulation of Thermo-Magnetic Oxygen Analyzers	Obsolete	JJG 662-1990

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Basic data

Standard ID	JJG 662-2005 (JJG662-2005)
Description (Translated English)	Verification regulation of paramagnetic oxygen analyzer
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A61
Classification of International Standard	17
Word Count Estimation	13,191
Date of Issue	2005-04-28
Date of Implementation	2005-10-28
Older Standard (superseded by this standard)	JJG 662-1990
Summary	This standard applies to paramagnetic oxygen (including thermal-magnetic oxygen, oxygen pressure type magnetic, magneto mechanical oxygen) analyzer initial verification, testing and use of follow-up inspection,

JJG 662-2005: Verification regulation of paramagnetic oxygen analyzer

---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 paramagnetic oxygen analyzer National Metrology Verification Regulations of the People's Republic Paramagnetic oxygen analyzer Released on.2005-04-28 2005-10-28 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Replacing JJG 662-1990 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on April 28,.2005, and Implemented on October 28,.2005. Focal Point. National Physical and Chemical Metrology Technical Committee Main drafting unit. National Standards Research Center Participated in the drafting unit. Quality Inspection Bureau of Ningbo Quality and Technical Supervision Bureau This procedure entrusts the National Physical and Chemical Metrology Technical Committee to explain The main drafters of this procedure. Li Chunxi (National Reference Materials Research Center) Participate in the drafters. Guan Yihe (Ningbo Quality and Technical Supervision Bureau Quality Inspection Institute) Yu Dengyu (National Standards Research Center) Zhang Peizhuang (National Standards Research Center)

1 Scope (1) 2 Overview (1) 3 Metrological performance requirements (1) 3.1 Instrument level and indication error limits (1) 3.2 Repeatability (1) 3.3 Response time (1) 3.4 Stability (1) 3.4.1 Zero drift (1) 3.4.2 Indication drift (1) 4 General technical requirements (2) 4.1 Appearance and Functional Inspection (2) 4.2 Insulation resistance (2) 4.3 Dielectric strength (2) 5 Control of measuring instruments (2) 5.1 Verification conditions (2) 5.2 Verification project (3) 5.3 Verification method (3) 5.4 Processing of verification results (5) 5.5 Verification cycle (5) Appendix A Format of the certificate and the result of the verification result (6) Appendix B Verification Record Format (7) Paramagnetic oxygen analyzer verification procedure

1 Scope

This procedure applies to the first time for paramagnetic oxygen (including thermomagnetic oxygen, magnetic pressure oxygen, magnetic mechanical oxygen) analyzers. Verification, follow-up verification and in-use inspection.

2 Overview

Thermomagnetic oxygen analyzer, magnetic pressure oxygen analyzer, magnetic mechanical oxygen analyzer are usually online detection (or supervision) Meter) for continuous automatic analysis of the oxygen content of the gas. Its working principle is based on the paramagnetism of oxygen. Use oxygen Is attracted in the magnetic field to produce corresponding thermomagnetic convection (thermomagnetic), pressure difference (magnetic pressure), density gradient (magnetic Mechanical), and through the detection of components to convert thermomagnetic convection, pressure difference, density gradient into electrical signals, thereby achieving The measurement of the oxygen concentration in the gas is measured.

3 Metrological performance requirements

3.1 Instrument level and indication error limits For different classes of instruments, the corresponding indication error limits shall be in accordance with Table 1 within the range of their ranges. Table 1 Instrument level and indication error limits Instrument level indication error limit /%FS 1.0 ± 1.0 1.5 ± 1.5 2.5 ± 2.5 5.0 ± 5.0 3.2 Repeatability Under the same conditions, the same standard gas is measured 6 times, and the relative standard deviation should be no more than the corresponding indication. The error limit is 1/2 of the absolute value. 3.3 Response time Thermomagnetic oxygen analyzer. no more than 50s; Magnetic pressure oxygen analyzer, magnetic mechanical oxygen analyzer. no more than 30s. 3.4 Stability 3.4.1 Zero drift The instrument runs continuously for 4 hours, and the zero drift should not exceed the indication error limit. 3.4.2 indication drift The instrument is continuously operated for 4h, and the indication value drift should not exceed the indication error limit. For the first run of the instrument, the zero running time and the continuous running time of the indication drift should refer to the instrument manual.

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