BS 4841-1:1975

Заменен

Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam for building applications, Laminated board for general purposes — 9 стр.

Заменен на

BS 4841-1:1993

ICS

83.100 Cellular materials / Поропласты

91.100.60 Thermal and sound insulating materials / Тепло- и звукоизоляционные материалы