美利体育登录入口官网:DS/EN ISO 6887-1:1999
食品和动物饲料的微生物学 用于微生物检验的测试样品、初始悬浮液和十进制稀释液的制备 第1部分：制备初始悬浮液和十进制稀释液的一般规则
Microbiology of food and animal feeding stuffs - Preparation of test samples, initial suspension and decimal dilutions for microbiological examination - Part 1: General rules for the preparation of the initial suspension and decimal dilutions