标准摘要
[中文适用范围]： ISO 11866|IDF 170 的这一部分规定了在 44 °C 下通过菌落计数技术计数推定大肠杆菌的方法。 本方法适用于 -- 牛奶、液态奶制品， -- 奶粉、甜乳清粉、酪乳粉、乳糖， -- 酸性酪蛋白、乳酸酪蛋白和凝乳酶酪蛋白， -- 酪蛋白酸盐和干酸乳清， -- 奶酪和加工奶酪， -- 黄油， -- 冷冻奶制品（包括食用冰），以及 -- 蛋奶冻、甜点和奶油。 ISO 11866|IDF 170 本部分规定的方法是怀疑存在较大数量推定大肠杆菌（每克超过 100 个或每毫升超过 10 个）的样品的首选方法。 [外文原描述]： ISO 11866-2|IDF 170-2:2005 specifies a method for the enumeration of presumptive Escherichia coli by means of a colony-count technique at 44 °C. The method is applicable to milk, liquid milk products, dried milk, dried sweet whey, dried buttermilk, lactose, acid casein, lactic casein and rennet casein, caseinate and dried acid whey, cheese and processed cheese, butter, frozen milk products (including edible ices), and custard, desserts and cream. The method specified in ISO 11866-2|IDF 170-2:2005 is the preferred method for samples in which comparatively large numbers of presumptive Escherichia coli (more than 100 per gram or 10 per millilitre) are suspected.
英文名称Milk and milk products — Enumeration of presumptive Escherichia coli — Part 2: Colony-count technique at 44 degrees C using membranes