SR EN ISO 4833-2:2014

ISO 4833-2:2013 specifies a horizontal method for enumeration of microorganisms that are able to grow and form colonies on the surface of a solid medium after aerobic incubation at 30 °C. The method is applicable to: a) products intended for human consumption or for animal feed; b) environmental samples in the area of food and feed production and food handling. ISO 4833-2:2013 is applicable to: 1) products containing heat-sensitive organisms that are likely to form a significant proportion of the total flora (e.g. psychrotrophic organisms in chilled and frozen foods, dried foods, other foods that may contain heat-sensitive organisms); 2) products containing obligately aerobic bacteria that are likely to form a significant proportion of the total flora (e.g. Pseudomonas spp.); 3) products that contain small particles that can prove difficult to distinguish from colonies in a pour plate; 4) products whose intense colour prevents the recognition of colonies in a pour plate; 5) products for which distinction between different types of colony is required as part of the assessment o