ISO 5520:1981
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ISO 5520:1981
11574

Abstract

 Preview

After incineration of the product at 525 +/- 25 degrees centigrade the method consists in a) in the case of total ash: addition of an excess of standard volumetric sulphuric acid solution and back titration with standard volumetric sodium hydroxide solution, b) in the case of water-soluble ash: extraction of the ash with hot water and neutralization of the aqueous extract with standard volumetric sulphuric acid solution.


General information 

  •  :  Published
     : 1981-08
  •  : 1
     : 3
  •  : ISO/TC 34/SC 3 Fruits and vegetables and their derived products
  •  :
    67.080.01 Fruits, vegetables and derived products in general

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