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BS EN ISO 13843:2017

Current
Current

The latest, up-to-date edition.

Water quality. Requirements for establishing performance characteristics of quantitative microbiological methods
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

05-09-2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Basic concepts
5 Specifications: some guideline values
6 Designs for determining performance characteristics
  of a method
7 Designs for single laboratory verification of a method
Annex A (informative) - Mathematical models of variation
Annex B (normative) - Assessment of the lower limits
Annex C (normative) - Assessment of the upper limit
Annex D (normative) - Determination of the operational
        variability in repeatability and intralaboratory
        reproducibility conditions
Annex E (normative) - Uncertainty of counting
Annex F (normative) - Determination of the operational
        variability (interlaboratory reproducibility) in a
        collaborative performance study
Annex G (informative) - Glossary of principal symbols
Bibliography

Specifies procedures for the determination of performance characteristics which can be used for subsequent validation or verification of methods.

This document deals with characterization of microbiological methods. In terms of this document, characterization means the study of parameters that can be measured to describe how the method is likely to perform in a given set of conditions, which can be described as performance characteristics. The document describes procedures for the determination of performance characteristics which can be used for subsequent validation or verification of methods.

The emphasis is on selective quantitative methods and this document applies to all types of water. For methods that are not based upon direct microscopic count, colony count or most probable number, the applicability of the procedures described in this document should be considered carefully.

Committee
EH/3/4
DevelopmentNote
Supersedes 16/30279101 DC & DD ENV ISO/TR 13843. (09/2017)
DocumentType
Standard
Pages
72
PublisherName
British Standards Institution
Status
Current
Supersedes
UnderRevision

Standards Relationship
EN ISO 13843:2017 Identical
ISO 13843:2017 Identical

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 7704:1985 Water quality — Evaluation of membrane filters used for microbiological analyses
ISO 16140-1:2016 Microbiology of the food chain Method validation Part 1: Vocabulary
ISO 29201:2012 Water quality — The variability of test results and the uncertainty of measurement of microbiological enumeration methods
ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method
ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
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 17511:2003 In vitro diagnostic medical devices Measurement of quantities in biological samples Metrological traceability of values assigned to calibrators and control materials
ISO 9308-1:2014 Water quality Enumeration of Escherichia coli and coliform bacteria Part 1: Membrane filtration method for waters with low bacterial background flora
ISO 11133:2014 Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 9308-2:2012 Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 2: Most probable number method
ISO 17994:2014 Water quality Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods
ISO 5725-5:1998 Accuracy (trueness and precision) of measurement methods and results — Part 5: Alternative methods for the determination of the precision of a standard measurement method
ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability

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