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ISO 5520:1981

Fruits, vegetables and derived products — Determination of alkalinity of total ash and of water-soluble ash

Standard Details

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

Status : Published
Standard Type: Main
Document No: ISO 5520:1981
Document Year: 1981
Pages: 3
Edition: 1
  • ICS:
  • 67.080.01 Fruits, vegetables and derived products in general

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ISO 5520:1981
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