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JJF 1135-2005 English PDF

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JJF 1135-2005: Evaluation of Uncertainty in Chemical Analysis Measurement
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJF 1135-2005	English	449	Add to Cart	3 days [Need to translate]	Evaluation of Uncertainty in Chemical Analysis Measurement	Valid	JJF 1135-2005

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Standard similar to JJF 1135-2005

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Basic data

Standard ID	JJF 1135-2005 (JJF1135-2005)
Description (Translated English)	Evaluation of Uncertainty in Chemical Analysis Measurement
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A61
Classification of International Standard	17
Word Count Estimation	17,176
Date of Issue	2005-09-05
Date of Implementation	2005-12-05
Quoted Standard	JJF 1059-1999; JJF 1001-1998; JJF 1071-2000; ISO 5725
Issuing agency(ies)	State Administration of Quality Supervision, Inspection and Quarantine
Summary	This standard applies to: all accuracy requirements measurement and chemical analysis from basic research to routine analytical measurements all areas. For example: a, establish national stoichiometric base, standards and international comparison, b, standard materials research, c, chemical measurement methods formulation and evaluation of proficiency testing, d, chemical analysis equipment test/calibration, type evaluation, e, chemical measurements in research, development and product testing arbitration, f, research, production quality control, quality assurance.

JJF 1135-2005: Evaluation of Uncertainty in Chemical Analysis Measurement

---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.
Evaluation of Uncertainty in Chemical Analysis Measurement People's Republic of China National Measurement Specifications Chemical analysis of measurement uncertainty 2005-09-05 released 2005-12-05 implementation General Administration of Quality Supervision, Inspection and Quarantine released Chemical analysis of measurement uncertainty This standard was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 5,.2005 and has been issued since December 5,.2005 shall come into force. Administrative Organization. National Physical Chemistry Metrology Technical Committee Drafting unit. National Standard Materials Research Center This specification is responsible for the interpretation of the National Physical Chemistry Metrology Technical Committee The main drafters of this code. Ni Xiaoli (National Standard Materials Research Center) Participate drafters. Shao Mingwu (National Institute of Standards and Materials) Xiaohua Xiao (National Institute of Standards and Materials) Song Xiaoping (National Institute of Standards and Materials)

1 Application (1) 2 References (1) 3 basic terms and definitions (1) 4 chemical analysis of the main source of measurement uncertainty (3) 4.1 Description of the test object (3) 4.2 Sampling (3) 4.3 Sample Preparation (3) 4.4 Standard Material Selection for Measurement Systems (3) 4.5 Instrument Calibration/Calibration (4) 4.6 Analysis and Measurement (4) 4.7 Data Processing (4) 5 chemical analysis of measurement uncertainty in the evaluation process (4) 5.1 Detailed Description Measured (4) 5.2 Identification of sources of uncertainty (6) 5.3 Quantification of uncertainty (6) 5.4 Synthesis of standard uncertainty calculation (7) 5.5 Extended uncertainty given (8) 6 Chemical analysis of the measurement results (9) 6.1 expressed in standard uncertainty (9) 6.2 Expanded Uncertainty (9) 6.3 Measurement results Uncertainty of the effective digital representation (9) Appendix A chemical analysis of measurement uncertainty in the evaluation procedure diagram (10) Appendix B Distribution Function and Standard Uncertainty Calculation Table (11) Appendix C Distribution of tp (ν) values (t values) for different confidence probabilities p and degrees of freedom ν (12) Chemical analysis of measurement uncertainty This technical specification follows the "Guidance on Expression of Uncertainty in Measurement" (GUM) and "Evaluation of Uncertainty in Chemical Analysis Evaluation Guide "(EURACHEM/CITACGuideQuantifyingUncertaintyinAnalysisMeasure- ment), combined with the characteristics of chemical analysis and measurement, from the scientific, normative, practical point of view Development, establishment of evaluation model, standardization of chemical analysis of measurement uncertainty and representation.

1 Scope of applications

This specification applies to all the chemical analysis of accuracy requirements and from basic research to routine analysis of each field. E.g. a) Establish national stoichiometry, standards and international comparisons; b) Development of standard substances; c) Preparation and evaluation of chemical measurement methods, proficiency testing; d) verification/calibration of chemical analysis instruments, type evaluation; e) chemical measurement research, development and product arbitration test; f) scientific research, production quality control, quality assurance.

2 References

JJF 1059-1999 "Measurement Uncertainty Evaluation and Expression" JJF 1001-1998 "Common measurement terms and definitions" JJF 1071-2000 "National Metrology Calibration Code Writing Rules" EURACHEM/CITACGuideQuantifyingUncertaintyinAnalyticalMeasurement ("Guide to Evaluation of Uncertainty in Chemical Analysis") ISO 5725Accuracyofmeasurementmethodsandresults When using this specification, care should be taken to use the currently valid version of the above referenced document.

3 basic terms and definitions

3.1 [Measurement] uncertainty uncertainty [ofameasurement] Characterize the dispersion that gives a reasonable measure of value, and the parameters associated with the measurement. Note. 1 This parameter can be such as the standard deviation (or multiples thereof), or the half-width of the confidence interval. 2 Measurement uncertainty consists of multiple components. Some of these components can be estimated using the statistical distribution of measurement column results and used in practice Test standard deviation characterization. Other components are estimated on the assumption of probability distribution based on experience or other information, and standard deviation Characterization.

3 The measurement results should be understood as the best estimate of the value being measured and all the components of the uncertainty contribute to the dispersibility including

Those components introduced by the system effects, such as corrections and reference measurement standards. 3.2 standard uncertainty u (xi) standarduncertainty

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