PRICES include / exclude VAT
sklademVydáno: 1989-09-29
BS 4285-2.5:1989
Microbiological examination for dairy purposes. Methods of general application for enumeration of microorganisms Enumeration of bacteria by direct microscopic counts
Format
Availability
Price and currency
Anglicky Secure PDF
Immediate download
150.75 €
You can read the standard for 1 hour. More information in the category: E-reading
Reading the standardfor 1 hour
15.08 €
You can read the standard for 24 hours. More information in the category: E-reading
Reading the standardfor 24 hours
45.23 €
Anglicky Hardcopy
In stock
150.75 €
Označení normy: | BS 4285-2.5:1989 |
Počet stran: | 6 |
Vydáno: | 1989-09-29 |
ISBN: | 0 580 17390 9 |
Status: | Standard |
DESCRIPTION
BS 4285-2.5:1989
This standard BS 4285-2.5:1989 Microbiological examination for dairy purposes. Methods of general application for enumeration of microorganisms is classified in these ICS categories:
- 07.100.30 Food microbiology
- 67.100.01 Milk and milk products in general
This Section of BS 4285 describes two methods of general application for the direct enumeration of bacteria:
- method A: direct microscopic count technique for total counts in milk;
- method B: direct epifluorescent filter technique (DEFT) for total counts or counts of bacteria in milk, certain milk products and samples such as rinses.
NOTE 1. In samples (including plant rinses) that have received some degree of heat treatment (equivalent to pasteurisation or greater), certain organisms, particularly Gram-positive cocci, will fluoresce orange (i.e. as active) but will be non-viable by plate count methods. Therefore great care is needed in interpreting results using such samples.
NOTE 2. The titles of the publications referred to in this standard are listed on page 5.
Two methods: A for total counts in milk and B (direct epifluorescent filter technique) for total counts and counts of 'active bacteria' in milk and other samples.