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Withdrawn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