BS-4841-4 › Complete Document History
Rigid polyurethane (PUR) and polyisocyanurate (PIR) products for building end-use applications


Obsolete Revision Information:
   WITHDRAWN - WITHDRAWN WITHOUT SUPERSEDING DOCUMENT - Sept. 11, 2023
   2006 EDITION - Rigid polyurethane (PUR) and polyisocyanurate (PIR) products for building end-use applications. Specification for laminated insulation boards (roofboards) with auto-adhesively or separately bonded facings for use as roofboard thermal insulation under non- - July 20, 2006