Standard

ISO 4278:1977

Radié

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Résumé

Applicable to products having contents, expressed as Na2 CO3 , more than 0.02 % (m/m). Describes the release of the carbon dioxide from a test portion by acidification and heating. Entrainment of the carbon dioxide in a flow of air and absorption in weighed absorption tubes containing soda asbestos. Specifies the weighing of the absorption tubes to determine the quantity released.

Spécifications des produits

  • Standard de ISO
  • Publié:
  • Radié:
  • Version: 1
  • Type de document: IS
  • Pages
  • Editeur: ISO
  • Distributeur: ISO
  • ICS: 71.060.50
  • Comité international: ISO/TC 47