BS 476-4:1970
Fire tests on building materials and structures. Non-combustibility test for materials
https://doi.org/10.3403/00045355 (published 26/01/1970)
BS 476-4:1970 is maintained by FSH/21. This standard is available from the following sources:
Other historical versions of this standard document also exist:
- BS 476-4:1970 [current until 01/04/2014]