ISO 2993:1974
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ISO 2993:1974
8043

Status : Published (Under review)

This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
en
Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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Abstract

Applicable to products having a free acidity, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Dissolution of a test portion in Water and titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The indicator must have a colour change in the pH range between 5.2 and 5.6. Has also been approved by the IUPAC.

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General information

  •  : Published
     : 1974-04
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 47
    71.060.50 
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