ISO/TS 5667-25:2022

Water quality — Sampling — Part 25: Guideline on the validation of the storage time of water samples

Publication date:   Feb 23, 2022

General information

60.60 Standard published   Feb 23, 2022

ISO

ISO/TC 147/SC 6 Sampling (general methods)

Technical Specification

13.060.45   Examination of water in general

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Scope

The purpose of this document is to describe test plans and different operating methodologies of these test plans to define and verify the acceptable length of stability of a substance in a sample under specified conditions of preservation (temperature, matrix, light, addition of a stabilizer, where appropriate, type of preservation etc.) before starting analytical protocols (chemicals and physico-chemicals analysis). Biological and microbiological methods are excluded.
It is necessary to have an analytical method with performances that have already been characterized (repeatability, intermediate precision, trueness, accuracy and uncertainty) in order to perform the stability study and implement its test plans.

Life cycle

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PUBLISHED
ISO/TS 5667-25:2022
60.60 Standard published
Feb 23, 2022