This document specifies general requirements for sampling, preservation, handling, transport and
storage of all water samples including those for biological analyses.
It is not applicable to water samples intended for microbiological analyses as specified in ISO 19458,
ecotoxicological assays, biological assays and passive sampling as specified in the scope of ISO 5667-23.
This document is particularly appropriate when spot or composite samples cannot be analysed on site
and have to be transported to a laboratory for analysis.

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ISO/IEC 17025:2017 specifies the general requirements for the competence, impartiality and consistent operation of laboratories.
ISO/IEC 17025:2017 is applicable to all organizations performing laboratory activities, regardless of the number of personnel.
Laboratory customers, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies, and others use ISO/IEC 17025:2017 in confirming or recognizing the competence of laboratories.

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  • Standard – translation
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ISO 13528:2015 provides detailed descriptions of statistical methods for proficiency testing providers to use to design proficiency testing schemes and to analyse the data obtained from those schemes. It provides recommendations on the interpretation of proficiency testing data by participants in such schemes and by accreditation bodies. The procedures in ISO 13528:2015 can be applied to demonstrate that the measurement results obtained by laboratories, inspection bodies, and individuals meet specified criteria for acceptable performance. ISO 13528:2015 is applicable to proficiency testing where the results reported are either quantitative measurements or qualitative observations on test items.

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  • Standard
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  • Standard
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This International Standard specifies general requirements for the competence of providers of proficiency testing schemes and for the development and operation of proficiency testing schemes. These requirements are intended to be general for all types of proficiency testing schemes, and they can be used as a basis for specific technical requirements for particular fields of application.

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