DS/EN ISO 4833-1:2013

Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1: Colony count at 30 degrees C by the pour plate technique

This International Standard specifies a horizontal method for enumeration of microorganisms growing in a solid medium after aerobic incubation at 30║C. The method is applicable to:*- products intended for human consumption or for animal feeding stuffs;*- environmental samples in the area of food production and food handling.*This part of the Standard is recommended for use:*- to obtain a reliable count when a low limit of detection is specified (below 102/g or ml for liquid samples or below 103/g for solid samples);*- for products expected to contain spreading colonies that will obscure colonies of other organisms eg: milk and milk products likely to contain spreading Bacillus species.*The applicability of this International Standard to the examination of certain fermented food and animal feeding stuffs is limited and other media and/or incubation conditions may be more appropriate. However this method may be applied to such products even though the predominant microorganisms in those products may not be detected effectively.