Browse & Buy UL Standards
Standard 1666, Edition 5

Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

UL Red Line
Standard 1666, Edition 5 Edition Date: September 24, 2021 ANSI Approved: September 24, 2021

The cost to purchase this Standard varies depending on whether you are ordering a hardcopy, PDF or combination of the two. We also offer two different types of subscriptions: a one year and a three year.

You will be able to choose your purchase options on the following pages.

×
×
×
×
×

You have one or more subscriptions that will expire soon.

×

You have one or more licenses to assign

×