BSI PD ISO/TS 5667-25:2022

$198.66

Water quality. Sampling – Guideline on the validation of the storage time of water samples

Published By	Publication Date	Number of Pages
BSI	2022	58

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Categories: 13.060.45 - Examination of water in general, BSI

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PDF Catalog

PDF Pages	PDF Title
2	National foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms, definitions and symbols
13	4 Principle
14	5 Definition of the scope of the stability study 5.1 Aim of the stability study 5.2 Selection of the maximum acceptable delay before analysis and the acceptance criteria
15	5.3 Influence parameters of the maximum acceptable delay before analysis 5.4 Duration of the study
16	5.5 Concentration levels 5.6 Definition of the matrices and selection of the representative samples
17	5.7 Guidelines to the stability studies of transformation products
19	6 Definition of the experimental plan 6.1 Determination of the value of the quantity of the material at T 0 and at other times during the study
20	6.2 Test materials 6.2.1 Preparation
21	6.2.2 Characterization of the test materials 6.2.3 MQD Evaluation
22	6.3 Definition of the test plan 6.3.1 Choice of the type of study 6.3.2 Randomization 7 Performance of the tests 7.1 General
23	7.2 Chronological stability study 7.3 Type 1 pseudo-isochronous stability study
24	7.4 Type 2 pseudo-isochronous stability study 7.5 Isochronous stability study
25	8 Graphic representation of the data
28	9 Validation of the data 9.1 Initial validation of the study at T 0 9.1.1 Calculation of the value assigned to T 0 (VAT 0)
29	9.1.2 Verification of the accuracy 9.2 Validation at times different from T 0
30	10 Using the results 10.1 Graphic view of all the data 10.2 Determination of the maximum acceptable delay before analysis by condition
40	10.3 Conclusion of the study
41	11 Expression of stability
42	Annex A (informative) Measurement process
43	Annex B (informative) Fundamental notions
49	Annex C (informative) Study of stability and influence parameters
51	Annex D (informative) Example of study of atrazine stability in water
57	Bibliography