EN ISO 8199:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 General
5 Diluents and culture media
6 Sterilization of apparatus and glassware
7 Samples
8 Enumeration after inoculation of test portions
  of the sample in (or on) solid media
9 Enumeration by inoculation in liquid media
Annex A (informative) Criteria for the choice of
                      enumeration technique
Annex B (informative) MPN tables
Bibliography

ISO 8199:2005 presents guidance for carrying out manipulations which are common to each technique for the microbiological examination of water, particularly the preparation of samples, culture media and apparatus. It also describes the various enumeration techniques available and the criteria for the choice of a particular technique. It is mainly intended for bacteria, yeasts and moulds. Some aspects are also applicable to viruses and parasites.