BS EN ISO 6887-6:2013
食品和动物饲料的微生物学.用于微生物检验的试验样品的初始悬浮液和十倍稀释液的制备.初级生产阶段样品制备的专门规则
Microbiology of food and animal feed. Preparation of test samples, initial suspension and decimal dilutions for microbiological examination. Specific rules for the preparation of samples taken at the primary production stage