51-GP-21M
1. Scope
1.1 This standard applies to rigid cellular urethane or isocyanurate
thermal insulation in the form of unfaced preformed boards primarily
intended for use in applications where the continuous use surface
temperature does not exceed 80°C for urethane and 110°C for
isocyanurate.
1.2 For more information on intended uses, see par. 8.4.
SDO:
CGSB
Language:
English
ICS Codes:
91.120.10;
27.220
Status:
Withdrawn
Publish date:
1978-08-30
Standard Number:
51-GP-21M