This part of ISO 10272 describes a horizontal method for the semi-quantitative determination of Campylobacter spp. It is applicable to products intended for human consumption or for the feeding of animals, and to environmental samples in the area of food production and food handling. However, it is possible that this part of ISO 10272 is not appropriate in every detail for certain products, deviations from it being made necessary for technical reasons. It is possible that this part of ISO 10272 is not applicable at all to some other products.