JJG 945-2010 English PDFUS$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. JJG 945-2010: Verification regulation of micro oxygen analyzers Status: Valid JJG 945: Historical versions
Basic dataStandard ID: JJG 945-2010 (JJG945-2010)Description (Translated English): Verification regulation of micro oxygen analyzers Sector / Industry: Metrology & Measurement Industry Standard Classification of Chinese Standard: A61 Classification of International Standard: 17.020 Word Count Estimation: 14,121 Date of Issue: 2010-06-10 Date of Implementation: 2010-12-10 Older Standard (superseded by this standard): JJG 945-1999 Regulation (derived from): AQSIQ Announcement No. 59 of 2010 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine Summary: This standard applies to measurement range of 0 ~ 1000��mol/mol trace oxygen analyzer's initial verification, testing and use of follow-up inspection. JJG 945-2010: Verification regulation of micro 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 micro oxygen analyzers State verification procedures People's Republic of China Trace oxygen analyzer Issued on. 2010-06-10 2010-12-10 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Trace oxygen analyzer test procedures zers Replacing JJG 945-1999 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on June 10, 2010, and from From December 10, 2010 into effect. Focal point. the National Technical Committee on Environment stoichiometry Drafting units. China Institute of Metrology Participated in the drafting unit. Analytical Instruments Co., Ltd. Beijing long Xinglong Xinjiang Institute of Metrology This procedure commissioned the National Technical Committee of the stoichiometric environment responsible for interpreting The main drafters of this procedure. Li Chunying (China Institute of Metrology) Drafters participate. Choi Hee Chung (Beijing Xinglong long Analytical Instruments Co., Ltd.) Zhang Zhuang (China Institute of Metrology) Han Bridge (China Institute of Metrology) Li Desheng (Xinjiang Institute of Measurement and Testing) table of Contents1 Scope (1) 2 Overview (1) 3 metering performance requirements (1) 3.1 Scope and instrument indication error (1) 3.2 Repeatability (2) 3.3 Response Time (2) Drift 3.4 (2) 4 General Requirements (2) 4.1 appearance and function check (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 Methods (3) 5.4 Verification Results Processing (6) 5.5 test cycle (6) Appendix A test recording format (7) Appendix B calibration certificate, test results of notice (in-page) format (9) Trace oxygen analyzer test procedures1 ScopeThe order applies to the measurement range of 0 ~ 1000μmol/mol trace oxygen analyzer's initial verification, subsequent verification And use of the test.2 OverviewTrace oxygen analyzer (hereinafter referred to as equipment) is mainly used in chemical, metallurgy, electronics industry and other fields of production and should Measurement of trace oxygen in gas use. Such equipment is based on the chemical reaction generates a signal can be divided into different ways. raw Cordless (fuel cells, batteries Hz); concentration of solid electrolyte cell type (zirconia limiting current battery and inverter Pool); constant potential electrolysis, polarization voltage formula (Coulomb, polarographic detection) and other electrochemical detection of single principle Yuan trace gas oxygen analyzer. Such equipment usually consists of an electrochemical oxygen sensor (liquid or solid electrolyte), gas unit and the electronic display unit composition. Gas sampling mode. positive pressure conveying pump suction type and style. Instrument block diagram shown in Figure 1. 1 trace oxygen analyzer block diagram of FIG.3 metering performance requirements3.1 Scope and instrument indication error Different range of instruments, within its measuring range, indication error corresponding to comply with Table 1. Table 1 shows the instrument range and error Instrument Range/(μmol/mol) Indication Error /% FS 0 ~ 10 ± 10.0 > 10 ~ 100 ± 5.0 > 100 ~ 1000 ± 3.0 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJG 945-2010_English be delivered?Answer: Upon your order, we will start to translate JJG 945-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of JJG 945-2010_English with my colleagues?Answer: Yes. The purchased PDF of JJG 945-2010_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
