Numéro de référence
ISO 14900:2017
ISO 14900:2017
Plastiques — Polyols pour la production du polyuréthanne — Détermination de l'indice d'hydroxyle
Edition 2
2017-03
Annulée
ISO 14900:2017
72375
Annulée (Edition 2, 2017)

Résumé

ISO 14900:2017 specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials. It is necessary to know the hydroxyl content of polyols to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also intended for polyols which have significant steric hindrance, such as those based on sugars. Method B is intended for polyether polyols, polymer polyols and amine-initiated polyols, but may give low results for sterically hindered polyols. Other polyols can be analysed by these methods if precautions are taken to verify applicability. These methods can be used for research and for quality control and specification purposes.

Informations générales

  •  : Annulée
     : 2017-03
    : Annulation de la Norme internationale [95.99]
  •  : 2
  • ISO/TC 61/SC 12
    83.080.10 
  • RSS mises à jour

Vous avez une question?

Consulter notre Aide et assistance