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BS ISO 5725-2:1994:2002 Edition

BS ISO 5725-2:1994:2002 Edition

$198.66

Accuracy (trueness and precision) of measurement methods and results – Basic methods for the determination of repeatability and reproducibility of a standard measurement method

Published By Publication Date Number of Pages
BSI 2002 62
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PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 Committees responsible for this British Standard
3 Short contents
9 Introduction
11 1 Scope
2 Normative references
12 3 Definitions
4 Estimates of the parameters in the basic model
5 Requirements for a precision experiment
5.1 Layout of the experiment
13 5.2 Recruitment of the laboratories
5.3 Preparation of the materials
14 Figure 1
15 6 Personnel involved in a precision experiment
6.1 Panel
6.2 Statistical functions
6.3 Executive functions
16 6.4 Supervisors
6.5 Operators
17 7 Statistical analysis of a precision experiment
7.1 Preliminary considerations
7.2 Tabulation of the results and notation used
19 Figure 2
20 7.3 Scrutiny of results for consistency and outliers
25 7.4 Calculation of the general mean and variances
27 7.5 Establishing a functional relationship between precision values and the mean level�
30 Table 2
Table 3
7.6 Statistical analysis as a step-by-step procedure
32 Figure 3
33 Figure 3 (continued)
34 7.7 The report to, and the decisions to be taken by, the panel
35 8 Statistical tables
8.1 Critical values for Cochran’s test (see�
36 8.2 Critical values for Grubbs’ test (see�
8.3 Indicators for Mandel’s
37 Table 6
38 Table 7
39 Annex A (normative)
Symbols and abbreviations used in ISO 5725
41 Annex B (informative)
Examples of the statistical analysis of precision experiments
B.1 Example 1: Determination of the sulfur content of coal (Several levels with no missing or outlyin…
B.1.1 Background
B.1.2 Original data
42 Table B.1
B.1.3 Computation of cell means
B.1.4 Computation of standard deviations
B.1.5 Scrutiny for consistency and outliers
43 Table B.2
Table B.3
44 Figure B.1
45 Figure B.2
Figure B.3
46 Figure B.4
47 B.1.6 Computation
B.1.7 Dependence of precision
B.1.8 Conclusions
Table B.4
Table B.5
48 B.2 Example 2: Softening point of pitch (Several levels with missing data)
B.2.1 Background
49 B.2.2 Original data
B.2.3 Cell means
B.2.4 Absolute differences within cells
50 Table B.8
B.2.5 Scrutiny for consistency and outliers
51 B.2.6 Computation of
Table B.10
Table B.11
52 Figure B.5
53 Figure B.6
B.2.7 Dependence of precision on
B.2.8 Conclusions
54 B.3 Example 3: Thermometric titration of creosote oil (Several levels with outlying data)
B.3.1 Background
B.3.2 Original data
B.3.3 Cell means
55 Table B.13
B.3.4 Absolute differences within cells
B.3.5 Scrutiny for consistency and outliers
57 Figure B.7
58 Figure B.8
B.3.6 Computation
B.3.7 Dependence of precision
B.3.8 Final values of precision
59 B.3.9 Conclusions
Figure B.9
60 Annex C (informative)
Bibliography

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BS ISO 5725-2:1994
$198.66