标准摘要
[中文适用范围]: 本文件规定了测定奶油脂肪含量的酸丁酸测定法。 参考方法仍然是重量分析法(通过氨醚萃取)。 该方法适用于脂肪含量在 20% 至 50% 之间的稀奶油: ——用于制造黄油; ——甜的、未成熟的、未接种的; ——未加工的或经过热处理的; ——非均质化; ——含有或不含防腐剂(2-溴-2-硝基丙烷、1,3 二醇或溴硝醇)。 [外文原描述]: ISO 196660 | IDF 237:2018 specifies an acidobutyrometric method for determining the fat content of cream. The reference method remains the gravimetric method (by ammoniacal ether extraction) described in ISO 2450 | IDF 16. This method is applicable to cream having a fat content between 20 % and 50 % inclusive: - intended for manufacturing butter; - sweet, unmatured and non-inoculated; - raw or having undergone a heat treatment; - non-homogenized; - with or without preservatives (2-bromo-2-nitropropane, 1,3 diol or bronopol).
英文名称Cream — Determination of fat content — Acido-butyrometric method