CAN/CGSB-72.21-M89

Micrographics - Diazo and Vesicular Films - Visual Density - Specifications
This National Standard of Canada consists of the adoption of International Standard ISO 8126-1986. Changes, as explained in the Preface to this National Standard, have been made to section 4 of ISO 8126. It specifies a method for measuring the diffuse visual density of diazo films and the projection visual density of vesicular films. It also determines density values of second generation microforms.
OEN:
ONGC
Langue:
English
Code(s) de l'ICS:
37.080
Statut:
Annulée
Date de Publication:
1989-11-29
Numéro Standard:
CAN/CGSB-72.21-M89