Reference number
ISO 2227:1972
International Standard
ISO 2227:1972
Formaldehyde solutions for industrial use — Determination of formaldehyde content
Edition 1
1972-12
Read sample
ISO 2227:1972
7032
Published (Edition 1, 1972)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 2227:1972

ISO 2227:1972
7032
Language
Format
CHF 42
Convert Swiss francs (CHF) to your currency

Abstract

The specified method is applicable to HCHO contents between 25 5 and 45 %. The field of application may be extended by siutably modifying the mass of the test portion. The principle consists in the reaction of the test solution with a neutral sodium sulphite solution, and acidimetric titration of the liberated sodium hydroxide in presence of thymolphthalein as indicator.

General information

  •  : Published
     : 1972-12
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 47
    71.080.80 
  • RSS updates

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