Numéro de référence
ISO 2887:1973
ISO 2887:1973
© ISO 2025
ISO 2887:1973
Butanol secondaire, méthyl-éthyl-cétone, iso-butyl-méthyl-cétone, iso-amyl- éthyl-cétone, diacétone alcool et hexylène glycol à usage industriel — Détermination de l'acidité à la phénolphtaléine — Méthode volumétrique
Edition 1
1973-12
1973-12
Annulée
Résumé
Lays down the treatment of a test portion by dilution with water (or with ethanol or propan-2-ol if the sample is not completely soluble in water) and removal of carbon dioxide by passing a strem of nitrogen through the solution. The determination is carried out by titration with a standard volumetric sodium hydroxide solution using phenolphthalein as indicator. The nitrogen used shall be free from ammonia and carbon dioxide.