BS-4841-3 › Complete Document History
Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end-use applications


Obsolete Revision Information:
   WITHDRAWN - WITHDRAWN WITHOUT SUPERSEDING DOCUMENT - Sept. 11, 2023
   2006 EDITION - Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end-use applications. Specification for laminated boards (roofboards) with auto-adhesively or separately bonded facings for use as roofboard thermal insulation under built up bitumi - July 20, 2006
   1994 EDITION - SPECIFICATION FOR TWO TYPES OF - Jan. 1, 1994