BS EN ISO 17994:2014
Current
The latest, up-to-date edition.
Water quality. Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods
Hardcopy , PDF
English
28-02-2014
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle
5 Basic requirements for a comparison study
6 Calculations
7 Evaluation
Annex A (informative) - Flowchart
Annex B (informative) - Comparison studies
Annex C (informative) - Derivation of equation for
calculation of the number of samples
Annex D (informative) - Example of a two-sided
evaluation
Bibliography
Describes an evaluation procedure for comparing two methods with established performance characteristics according to ISO/TR 13843 and intended for the quantification of the same target group or species of microorganisms.
| Committee |
EH/3/4
|
| DevelopmentNote |
Supersedes BS 6068-4.19(2004) & 12/30236292 DC. (02/2014)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies an evaluation procedure for comparing two methods with established performance characteristics according to ISO/TR13843 and intended for the quantification of the same target group or species of microorganisms.
This International Standard provides the mathematical basis for the evaluation of the average relative performance of two quantitative methods against chosen criteria for the comparison. It does not provide data for assessment of the precision of the methods being compared. It is appropriate that the precision of methods is assessed as part of their performance characterization.
This International Standard does not provide methods for the verification of method performance characterization in a single laboratory.
| Standards | Relationship |
| DIN EN ISO 17994:2014-06 | Identical |
| NF EN ISO 17994 : 2014 | Identical |
| ISO 17994:2014 | Identical |
| I.S. EN ISO 17994:2014 | Identical |
| EN ISO 17994:2014 | Identical |
| NS EN ISO 17994 : 2014 | Identical |
| UNE-EN ISO 17994:2014 | Identical |
| UNI EN ISO 17994 : 2014 | Identical |
| NEN EN ISO 17994 : 2014 | Identical |
| SN EN ISO 17994:2014 | Identical |
| NBN EN ISO 17994 : 2014 | Identical |
| BS 8496:2007 | Water quality. Enumeration of micro-organisms in water samples. Guidance on the estimation of variation of results with particular reference to the contribution of uncertainty of measurement |
| ISO 8199:2005 | Water quality General guidance on the enumeration of micro-organisms by culture |
| ISO/IEC Guide 99:2007 | International vocabulary of metrology Basic and general concepts and associated terms (VIM) |
| ISO/TR 13843:2000 | Water quality Guidance on validation of microbiological methods |
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