Microbiology; General guidance for enumeration of coliforms; Colony count technique at 30 degrees C
Описание (англ.):
The method consists in preparing of two poured plates, using a specified culture medium, and using a specified test sample, further preparation of other pairs of poured plates, under the same conditions, using decimal dilutions of the test sample. Then incubation of the plates at 30 C for 24 h, and calculation of the number of micro-organisms per millilitre or per gram of sample from the number of colonies obtained in selected plates
Заменён стандартами:
ISO 4832(1991.03)
Дата введения:
01.02.78
Дата отмены:
01.03.91
Нормативные ссылки:
BS 5763 PART 2-1979, EQV*NF V08-015-1978, EQV*UNI ISO 4832-1988, EQV