Abstract Preview

The principle of the method specified is to distil a prepared flux solution with sodium hydroxide to expel the ammonia present in the flux, to pass the resulting distillate into a standard sulfuric acid solution, to titrate the excess acid with sodium hydroxide solution and to calculate the ammonia content of the flux. Applies to fluxes of class 3.1.1 only, as defined in ISO 9454-1.

General information

  • Status :  Published
    Publication date : 1993-04
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 44/SC 12
    Soldering materials
  • 25.160.50
    Brazing and soldering

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Format Language
  • CHF38

Life cycle

A standard is reviewed every 5 years

Revisions / Corrigenda

  • Now under review
    ISO 9455-9:1993

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