UL TR 56-1997
Study of Smoke Ratings Developed in Standard Fire Tests in Relation to Visual Observations

Standard No.

UL TR 56-1997

Release Date

1997

Published By

Underwriters Laboratories (UL)

Latest

UL TR 56-1997

UL TR 56-1997 history

• 1997 UL TR 56-1997 Study of Smoke Ratings Developed in Standard Fire Tests in Relation to Visual Observations