Микробиология общее руководство по подсчету кишечной палочки метод подсчета наиболее вероятного количества
Название (англ.):
Microbiology; General guidance for enumeration of presumptive Escherichia coli; Most probable number technique
Описание (англ.):
The method consists in inoculation of double strength liquid enrichment medium in three tubes with a specified test sample, inoculating of a single strength liquid enrichment medium in three tubes with a specified testsample; then under the same conditions, inoculating of single strength medium with decimal dilutions. Incubation of the tubes at 35 C or 37 C for 24 to 48 h, and examination of the tubes for gas formation. After further treatments determination of the MPN by means of an MPN table (see annexes A and B), according to the number of incubated tubes which gave rise to gas formation in the selective medium and in which indole was produce in trypton water.
Заменён стандартами:
ISO 7251(1993.12)
Дата регистрации:
09.01.87
Дата введения:
01.11.84
Дата отмены:
01.12.93
Код КГС:
Р09;С05
Код ОКСТУ:
9309
Код ОКП:
9309
Нормативные ссылки:
BS 5763 PART 8-1985, EQV*NF V08-020-1985, EQV*SFS-ISO 7251(1989/SFS), EQV