GB/T 34876-2017 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 34876-2017: Vacuum technology -- Vacuum gauges -- Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge Status: Valid
Basic dataStandard ID: GB/T 34876-2017 (GB/T34876-2017)Description (Translated English): Vacuum technology -- Vacuum gauges -- Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J78 Classification of International Standard: 23.160 Word Count Estimation: 14,121 Date of Issue: 2017-11-01 Date of Implementation: 2018-05-01 Regulation (derived from): National Standard Announcement 2017 No. 29 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China GB/T 34876-2017: Vacuum technology -- Vacuum gauges -- Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge---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. Vacuum technology-Vacuum gauges-Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge ICS 23.160 J78 National Standards of People's Republic of China Vacuum technology vacuum gauge and standard vacuum gauge directly Uncertainty assessment comparing calibration results Vacuumtechnology-Vacuumgauges-Evaluationofthertains of results (ISO 27893.2011, IDT) Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 symbols and abbreviations 2 5 Basic Concepts and Models 3 5.1 Summary 3 5.2 and Model 3 5.3 Business Model 3 5.4 Combination of two models 4 6 and Model Uncertainty Calculation 4 6.1 and model uncertainty 4 6.2 The reference standard introduces the component of uncertainty 4 6.3 Uncertainty component introduced by the instrument to be calibrated 5 6.4 Method of calibration or calibration conditions caused by the uncertainty component 6 6.5 contains factor 6 Calculation of the Uncertainty in 7-Part Model 6 7.1 Business Model Uncertainty 6 7.2 Reference standard to produce the uncertainty component 6 7.3 Uncertainty component of the instrument to be calibrated 7 7.4 Method of calibration or calibration conditions arising from the uncertainty component 8 7.5 contains factor 8 8 shows the sum of the error, the business model portfolio 9 9 Report Uncertainty 9 9.1 Uncertainty Report 9 9.2 Calibration Certificate 10 References 11 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method identical with ISO 27893.2011 "Vacuum technology vacuum gauge and standard vacuum gauge directly compare the calibration junction Uncertainty assessment of fruit. " This standard is proposed by the China Machinery Industry Federation. This standard by the National Vacuum Technology Standardization Technical Committee (SAC/TC18) centralized. This standard drafting unit. China Aerospace Science and Technology Corporation Fifth Institute of the five hundred and eleven Institute, China Institute of Metrology, Hefei Zhihai Optoelectronics Technology Co., Ltd., Beijing North Innovative Vacuum Technology Co., Ltd., Weihai Mitutoyo Vacuum Technology Co., Ltd., Shenyang Vacuum Institute of Technology. The main drafters of this standard. Cheng Yongjun, Zhao Lan, Li Detian, Zhang Ruifang, Wang Yongjun, Yu Hongyan, Liu Lei, Hou Ronghua, Wang Hongxue, Lin Lezhong, Xi Zhenhua, Sheng Xuemin, Sun Donghua, Wang Lingling. Vacuum technology vacuum gauge and standard vacuum gauge directly Uncertainty assessment comparing calibration results1 ScopeThis standard gives guidance on the evaluation and reporting of measurement uncertainty, which is in accordance with ISO /T S3567 and the standard Airship directly compare the calibration of the vacuum gauge. This standard describes the method of reporting the uncertainty of the vacuum gauge certificate. The uncertainty given by this standard can be borrowed from one another, ie, one The uncertainty of the result evaluation can be used as a component of the uncertainty assessment in another measurement or calibration procedure. The first result can also be used for this Measurement and calibration process. The two measurement models defined in this standard are sufficient to cover the vast majority of instances, but may not be suitable for newly developed gauges. The uncertainty reported in the final certificate is obtained by assessing the uncertainty of input and impact. This standard describes the shadow in detail The major amount of the results of the calibration of the vacuum gauge does not list all possible quantities that affect the final result. Note The calibration of special types of vacuum gauges will be covered in the technical specifications in the future.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. ISO /T S3567 vacuum gauge and the standard vacuum gauge direct comparison and calibration (Vacuumgauges-Calibrationbydirect comparisonwithareferencegauge) ISO /IEC Guide 98-3, Measurement Uncertainty Part 3. Guidance on Measurement Uncertainty (GUM.1995) [Uncer- taintyofmeasurement-Part 3.Guidetotheexpressionofuncertaintyinmeasurement (GUM. 1995)] ISO /IEC Guide99.2007 International Journal of Metrology Vocabulary Basic and Common Concepts and Related Terms (VIM) [International vocabulary of metrology-Basic and general criteria and associated devices (VIM)]3 Terms and definitionsISO /T S3567, ISO /IEC Guide98-3, ISO /IEC Guide99 and the following terms and definitions apply to this file. 3.1 Corrected indication The value of vacuum gauge after system error correction obtained value. Example. Refer to the results given in the standard calibration certificate. 3.2 Long-term instability long-terminstability Changes that may occur after a long period of calibration. Examples. Changes caused by device shipping. Note. Long-term instability is not the same as the repeatability defined in ISO /IEC Guide 99.2007, 3.7. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 34876-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 34876-2017_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 GB/T 34876-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 34876-2017_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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