GB/T 12661-2008 "Determination of the total bacterial count in paper and board" specifies the method for determining the total bacterial count in paper and board, applicable to various types of paper and board. The plate count method is used, in which the sample extract is inoculated onto nutrient agar medium, and after constant temperature incubation, the formed colonies are counted, with results expressed in colony-forming units (CFU). The standard clarifies sample preparation, aseptic operation, incubation conditions, and counting rules to ensure the accuracy of microbiological testing, providing technical support for the hygiene quality control of paper and board.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Y30 | ICS | 85.010 |
| Release Date | 2008-08-19 00:00:00 | Implementation Date | 2009-05-01 00:00:00 |