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Description of BS 4285:1968 1989Examination of liquid milk; details of techniques for estimating anaerobic spores. Methods for detection and estimation of lecithinase-producing organisms and potentially pathogenic staphylococci are given, together with details of the methylene blue and resazurin reduction tests. Instructions for rinse and swab techniques for farm and processing dairy equipment, including milk bottles. Appendices giving instructions for the preparation of the culture media and related reagents required; the following ancillary tests for special purposes: phosphatase test for pasteurized milk, turbidity test for sterilized milk, colony count for UHT milk, Whiteside test for cell content, detection of residual chlorine in rinses; a guide for estimating the surface areas of milking equipment.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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