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sour cream
This method is suitable for preparing standard test samples and determining reference method values that are required for calibrating mechanized and automated cell-counting methods
The results from the method may be part of product classification systems for domestic and international trade
semi-skimmed milk
casein and caseinate
ISO 14461-2 | IDF 169-2: 2005 - Quality control in microbiological laboratories - Part 2: Determination of the reliability of colony counts of parallel plates and subsequent dilution steps Publication Year - 2011 sour creamThis standard describes a routine procedure for the evaluation of results of the enumeration of microorganisms using colony count methods with subsequent 10 fold dilution steps and one plate or two parallel plates within each dilution step. This routine procedure is applied regularly in each laboratory performing colony counts. It provides criteria for the acceptability of differences between the results from parallel plates and subsequent dilution
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