ISO 2993:1974
p
ISO 2993:1974
8043

Abstract

 Preview

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.


General information 

  •  :  Published
     : 1974-04
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.060.50 Salts

Buy this standard

en
Format Language
std 1 40 PDF
std 2 40 Paper
  • CHF40

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.