ISO 7954:1987
Microbiology — General guidance for enumeration of yeasts and moulds — Colony count technique at 25 degrees C
Reference number
ISO 7954:1987
Edición 1
1987-10
© ISO 2024
Retirada
Retirada (Edición 1, 1987)

Resumen

The method consists in preparing of poured plates using a specified selective culture medium and a specified quantity of a test sample, further dilutions of the test sample. Then aerobic incubation of the plates at 25 degrees centigrade for 3, 4 or 5 days, followed by calculation of the number of yeasts and moulds per gram or per millilitre of the sample from the number of colonies obtained on plates chosen at dilution levels so as to give a significant result.

Informaciones generales

  • Estado
     : Retirada
    Fecha de publicación
     : 1987-10
    Etapa
    : Retirada de la Norma Internacional [95.99]
  • Edición
     : 1
    Número de páginas
     : 3
  • Comité Técnico :
    ISO/TC 34/SC 9
    ICS :
    07.100.01 
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