ISO/TR 8607:1991

Artificial insemination of animals — Frozen semen of breeding bulls — Enumeration of living aerobic micro-organisms

The method described counts the colonies obtained in a solid medium after aerobic incubation at 37 °C. Specifies normative references, definitions, principle, culture medium and diluent, apparatus and glassware, sampling, preparation of the test sample, procedure, expression of results, repeatability and test report.