Standard

ISO 2993:1974

Tilbaketrukket

Rettelser og tillegg kjøpes separat.

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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.

Dokumentinformasjon

  • Standard fra ISO
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 1
  • Versjon: 1
  • Varetype: IS
  • ICS 71.060.50
  • ISO TC ISO/TC 47

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