GB/T 27412-2012 English PDFUS$349.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 27412-2012: Detection of laboratory bias using single test result from check standard Status: Valid
Basic dataStandard ID: GB/T 27412-2012 (GB/T27412-2012)Description (Translated English): Detection of laboratory bias using single test result from check standard Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B04 Classification of International Standard: 19.02 Word Count Estimation: 15,194 Quoted Standard: GB/T 5487; GB/T 27407; JJF 1001 Regulation (derived from): National Standards Bulletin 2012 No. 42 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 Summary: This standard specifies the laboratory test method assumes no bias, the verification sample (Cs samples) single measurement results with the reference value (RQV) containing interval calculation of the difference. This standard applies to the state of sta GB/T 27412-2012: Detection of laboratory bias using single test result from check standard---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.Detection of laboratory bias using single test result from check standard ICS 19.02 B04 National Standards of People's Republic of China Based on the results of a single measurement verification sample Laboratory detection bias Issued on. 2012-12-31 2013-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard certification and accreditation by the National Standardization Technical Committee (SAC/TC261) and focal points. This standard was drafted. People's Republic of China Liaoning Entry Inspection and Quarantine Bureau, People's Republic of China Shandong Entry-Exit Inspection and Quarantine Bureau, Beijing University of Technology, China National Accreditation Center, China Institute of Metrology, People's Republic of China Guangdong Entry-Exit Inspection Quarantine Bureau, Shenzhen People's Republic of China Entry-Exit Inspection and Quarantine Bureau, Dehong Integrated Quality and Technical Supervision and Testing Center, the National Electrical Safety Quality The amount of supervision and inspection center. The main drafters of this standard. Wang Wen bucket, Wang Dong, CAO, Xie law, Shichang Yan, Di Peijun, Sun Hairong, Zhong Zhiguang, director husband silver, Yun Deng, Chen Shan, Wang Ni.IntroductionSince the detection method of the uncertainties inherent in such verification laboratory sample (CS sample) measured when it is difficult to obtain accurate parameters Consider value (RQV). The results show that reasonable proximity RQV laboratory detection methods unbiased, or bias can be ignored. However, the results and RQV the difference exceeds a predetermined amount, the laboratory should take corrective measures. Accurate and reliable method of detecting bias laboratory laboratory continuous improvement Foundation. Procedure in accordance with the standards provided by the analysis can detect bias measurement system. And other traditional statistical methods, the present Methodological standards provided for both the interests of customers, while β levels (type Ⅱ error probability) were controlled, it gives the corresponding uncertainty estimated value. Given only on the basis of a measurement result, it is not possible while reducing risk categories (ie make two types of errors probability), and therefore need to be based providers Business or operations such considerations weigh on the maximum allowable bias and risk categories. Sensible approach is to negotiate with the customer, in recognition of the risks Under the premise, according to the requirements as far as possible within the limits of its control needs. Normality statistics given in this standard value A2 * technology that helps interlaboratory comparisons and proficiency testing activities, data collection normality judgments Set, to avoid the improper operation of the final conclusions of the miscarriage of justice. Based on the results of a single measurement verification sample Laboratory detection bias1 ScopeThis standard specifies the laboratory methods unbiased assumed verification samples (CS sample) single measurements with the reference value It contains a section (RQV) the difference between the calculations. Note. This calculation comes from Class Ⅰ error rate prescribed precision standard deviation (sR ') during the detection method used, RQV standard deviation (sRQV), so laboratory By unbiased detection of the null hypothesis, and a single measurement results may fall outside the range of probability estimation method comprising the. This standard applies to the measurement under statistical control system to produce a continuous numerical results normal model to describe and predict.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 5487 Determination of gasoline octane number (research) GB/T 27407 laboratory quality control use performance statistics for quality assurance and control chart technical evaluation and analysis of the measurement system JJF1001 common measurement terms and definitions3 Terms and DefinitionsGB/T 27407 and JJF1001 defined in the following terms and definitions apply to this document. 3.1 Verification sample checkstandardsample CS sample Quality control measurements with the reference value of the material. Note. between the material as a standard substance, or laboratory comparison reference values \u200b\u200bassigned to the material, used to determine the accuracy of the measurement system. [GB/T 27407-2010, the definition 3.8] 3.2 Measurement accuracy measurementaccuracy, accuracyofmeasurement Accuracy accuracy The measured value is measured the extent consistent with its true value. Note 1. The concept of 'measurement accuracy' is not a quantity, do not give a digital value. When measurements provide smaller measurement error when he said that the measure is calibrated Correct. Note 2. Measurement accuracy is sometimes described as a given degree of coincidence between a measured value measured. [JJF1001-2011, the definition 5.8] 3.3 Measurement bias measurementbias Bias bias Estimates of measurement error. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27412-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 27412-2012_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 27412-2012_English with my colleagues?Answer: Yes. 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