Reference number
ISO 14897:2002
ISO 14897:2002
Plastics — Polyols for use in the production of polyurethane — Determination of water content
Edition 2
2002-06
Retirada
ISO 14897:2002
34859
Retirada (Edición 2, 2002)

Resumen

ISO 14897 specifies methods used to measure the water content of polyols employed as polyurethane raw materials. Method A is a manual amperometric method which has been included to better define the principles of the Karl Fischer measurement. Amperometric methods are applicable to a wide range of polyols, including those which have enough colour to obscure a visual end-point. Method B includes an automated amperometric procedure and an automated coulometric procedure. The coulometric procedure is an absolute method that does not require calibration and gives improved sensitivity compared with amperometric methods.

Informaciones generales

  •  : Retirada
     : 2002-06
    : Retirada de la Norma Internacional [95.99]
  •  : 2
     : 8
  • ISO/TC 61/SC 12
    83.080.10 
  • RSS actualizaciones

Ciclo de vida

¿Tiene alguna duda?

Consulte nuestras Ayuda y asistencia