UNE-EN ISO 19458:2007

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

Provides guidance on planning water sampling regimes, on sampling procedures for microbiological analysis and on transport, handling and storage of samples until analysis begins. It focuses on sampling for microbiological investigations.