BS EN ISO 16649-3-2015 食物链的微生物学. β-葡糖苷酸酶-阳性大肠杆菌计数的水平方法. 采用5-溴-4-氯-3-吲哚-$Gb-D-葡糖苷酸的检测和最大可能计数技术
Microbiology of the food chain. Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli. Detection and most probable number technique using 5-bromo-4-chloro-3-indolyl-$Gb-D-glucuronide