This standard specifies the method for counting the number of viable bacteria in water by counting the colonies formed in (or on) a nutrient agar medium after culturing under aerobic conditions at 37°C and/or 22°C. do. This method can generally be applied to microbiological testing of all types of water.
JIS K 0430-72-10:2000 history
2000JIS K 0430-72-10:2000 Water quality -- Enumeration of viable micro-organisms -- Colony count by inoculation in or on a nutrient culture medium