CAN/CGSB-72.21-M89
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