ISO 9848:1993
w
ISO 9848:1993
17726

Résumé

The method of determination specified is based on exposing and processing samples, measuring density from the resultant images to produce a sensitometric curve from which values are taken and used to determine ISO speed and ISO average gradient. Applies to black-and-white camera negative photographic films used for first generation microfilming of source documents at exposure times typically found with tungsten sources.


Informations générales 

  •  : Annulée
     : 1993-04
  •  : 1
     : 7
  •  : ISO/TC 42 Photographie
  •  :
    37.080 Applications imagerie documentaire
    37.040.20 Papier, films, plaques et chargeurs photographiques

Vous avez une question?

Consulter notre FAQ

Service à la clientèle
+41 22 749 08 88

Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)