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ČSN is a protected designation of Czech national technical standards.
Guideline for the validation of physico-chemical analytical methods
WITHDRAWN published on 1.9.2017
Selected format:Water quality - Nomenclatural requirements for the recording of biodiversity data, taxonomic checklists and keys
Standard published on 1.3.2015
Selected format:Water quality - Guidance standard for designing and selecting taxonomic keys
Standard published on 1.8.2013
Selected format:Water quality - The variability of test results and the uncertainty of measurement of microbiological enumeration methods
Standard published on 1.1.2013
Selected format:Water quality - Requirements for establishing performance characteristics of quantitative microbiological methods
Standard published on 1.6.2018
Selected format:Water quality - Requirements for establishing performance characteristics of quantitative microbiological methods
WITHDRAWN published on 1.1.2018
Selected format:Water quality - Guidance on validation of microbiological methods
WITHDRAWN published on 1.8.2002
Selected format:Water quality - Guidance on assuring the quality of biological and ecological assessments in the aquatic environment
Standard published on 1.1.2007
Selected format:Water quality - Criteria for establishing equivalence between microbiological methods
WITHDRAWN published on 1.1.2005
Selected format:Water quality - Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods
Standard published on 1.8.2014
Selected format:Latest update: 2026-05-17 (Number of items: 2 278 942)
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