Independent analytical testing. Results apply only to the sample received, for research use only.

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Colony-forming unit

Seen on microbial reports from other laboratories.

Definition

One countable colony on a plate, written CFU, taken to represent one viable organism or clump capable of growing under the test conditions. It is the unit an enumeration result is expressed in.

Related terms

TAMC and TYMC
Total aerobic microbial count and total yeast and mould count: two separate enumerations run on different media at different temperatures, reported separately.

About contaminant testing

Endotoxin and elemental impurities, what neither of them establishes, and the microbiological vocabulary a reader still meets elsewhere.

Bacterial endotoxinEndotoxin unitPositive product controlMaximum valid dilutionSterilityElemental impurityMethod blank

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