DIN EN ISO 6222-1999 水质.可培养微生物的计数.用营养琼脂培养基接种培养进行菌落计数
Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
The document describes a microbiological method for the enumeration of culturable micro-organisms in water for human consumption. The water sample is cultured on a nutrient agar culture medium and the formed colonies will be counted.