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.
SDO:
CGSB
Language:
English
ICS Codes:
37.080
Status:
Withdrawn
Publish date:
1989-11-29
Standard Number:
CAN/CGSB-72.21-M89