GB/T 33303-2016Guide for evaluation of measurement uncertainty in coal analysis (English PDF)
煤质分析中测量不确定度评定指南
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 13, 2016
Implementation date
July 1, 2017
Scope
GB/T 33303-2016 is the English-translated version of 煤质分析中测量不确定度评定指南.
GB/T 33303-2016 is the Chinese standard "Guide for evaluation of measurement uncertainty in coal analysis".
Its scope clause reads: This standard specifies the terms and definitions of measurement uncertainty assessment in coal quality analysis, measurement uncertainty of measurement uncertainty, measurement uncertainty Degree of report and presentation.
This standard applies to the assessment of measurement uncertainty in coal quality analysis. Its clauses include normative reference documents; terms and definitions.
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Document preview — GB/T 33303-2016
National Standard of the People's Republic of China
- ICS
- 73.040
- Classification
- D 21
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 terms and definitions
- 3.1 Measured measurand
- 3.2 Measurement result
- 3.3 Experimental standard deviation of
1 Scope
This standard specifies the terms and definitions of measurement uncertainty assessment in coal quality analysis, measurement uncertainty of measurement uncertainty, measurement uncertainty
Degree of report and presentation.
This standard applies to the assessment of measurement uncertainty in coal quality analysis.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Industrial Analysis of GB/T 212 Coal
GB/T 214 Determination of total sulfur in coal
Rules for the analysis of coal - General test methods
Evaluation and Representation of Measurement Uncertainty in JJF1059.1
3 terms and definitions
The following terms and definitions, as defined in GB/T 483 and JJF1059.1, apply to this document. For ease of use, repeat the following columns
Some of the terms and definitions in GB/T 483 and JJF1059.1 are available.
3.1 Measured measurand
The amount to be measured.
[JJF1059.1-2012, definition 3.1]
3.2 Measurement result
Together with other useful information, to give a set of measured values.
[JJF1059.1-2012, definition 3.2]
3.3 Experimental standard deviation of
The measurement of the same measurement was carried out by n times to characterize the dispersion of the measurement results. With symbol s.
Note 1. The experimental standard deviation s (xk) of a single measured value xk in n measurements can be calculated according to the Bessel formula.
s (xk) = i = 1 (xi-x) 2 n-1
Where.
xi --- the measured value of the first i;
x - the arithmetic mean of a set of measured values obtained from n measurements;
n - number of measurements.
Note 2. The experimental standard deviation s (x) of the arithmetic mean x of n measurements is.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
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