EN ISO 19458:2006

Foreword
Introduction
1 Scope
2 Normative references
3 Sampling point
4 Sampling technique
5 Transport and storage
Annex A (informative) A priori determination of the number
                      of samples to analyse to determine the
                      mean concentration of microbes in water
                      with a given confidence, for quantitative
                      determination derived by cultivation of
                      microorganisms
Annex B (informative) Recommended (R) and acceptable (A) values
                      for maximum sample storage times including
                      transport time and temperatures unless
                      otherwise specified in specific standards
Bibliography

ISO 19458:2006 provides guidance on planning water sampling regimes, on sampling procedures for microbiological analysis and on transport, handling and storage of samples until analysis begins. ISO 19458:2006 focuses on sampling for microbiological investigations.