717380

ISO 3356:1975

Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder -- Determination of phosphatase activity (Reference method)

standard by International Organization for Standardization , 07/01/1975

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Full Description

Can be applied for the control of proper pasteurization of the products specified in the title of this standard. Uses a principle of determination based on the dilution of the liquid product or the reconstituted liquid product with a buffer at pH 10.6 containing disodium phenylphosphate and incubation at 37 degrees centigrade for 1 h. By reaction with the alkaline phosphatase present in the product phenol is liberated which reacts with dibromopquinonechloroimide. Then the colour formed is measured photometrically.

 

Product Details

Published:
07/01/1975
Number of Pages:
3
File Size:
1 file , 820 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 3356:2009


    Milk - Determination of alkaline phosphatase

    • Most Recent

  2. ISO 3356:1975

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    Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder -- Determination of phosphatase activity (Reference method)

    • Historical Version