BS 5241-1:1994
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam when dispensed or sprayed on a construction site Specification for sprayed foam thermal insulation applied externally
Hardcopy , PDF
02-01-2024
English
15-03-1994
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Committees responsible
Foreword
Specification
1. Scope
2. References
3. Designation
4. Composition
5. Test specimens and sampling
6. Physical properties
7. Marking
Annexes
A. (informative) Notes for designers
B. (normative) Method for determination of apparent
water absorption
C. (informative) Burning properties of rigid
polyurethane and polyisocyanurate foam and
recommendations regarding their use
Tables
1. Designation codes for thermal conductivity
2. Physical properties
List of references
Specifies the physical property and compositional requirements for externally sprayed polyurethane (PUR) and polyisocyanurate (PIR) foams used for the thermal insulation of external surfaces. Deals with designation and marking. Also includes tables and annexes.
| Committee |
B/540
|
| DevelopmentNote |
Supersedes BS 5241-1(1989) and 92/46319 DC (09/2003) Reviewed and confirmed by BSI, December 2009. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Supersedes |
This Part of BS 5241 specifies the physical property and compositional requirements for externally sprayed polyurethane (PUR) and polyisocyanurate (PIR) foams used for the thermal insulation of external surfaces, e.g. roofs and storage tanks.
| BS 4735:1974 | Laboratory method of test for assessment of the horizontal burning characteristics of specimens no larger than 150 mm x 50 mm x 13 mm (nominal) of cellular plastics and cellular rubber materials when subjected to a small flame |
| BS 7021:1989 | Code of practice for thermal insulation of roofs externally by means of sprayed rigid polyurethane (PUR) or polyisocyanurate (PIR) foam |
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