BS IS0 4898:2018 BSl Standards Publication Rigid cellular plastics - Thermal insulation products for buildings - Specifications bsi. BSISO4898:2018 BRITISH STANDARD Nationalforeword ThisBritish Standard is theUK implementation of IS04898:2018. The UK participation in its preparation was entrusted to Technical Committee PRI/72, Rigid cellularmaterials. Alistoforganizations representedon this committee can be obtainedon requestto its secretary. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsible for its correct application. @TheBritish StandardsInstitution2018 Published by BSI Standards Limited2018 ISBN9780580927621 ICS83.100;91.100.60 Compliance withaBritish Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the Standards PolicyandStrategyCommitteeon30April2018. Amendments/corrigendaissued sincepublication Date Text affected BS IS0 4898:2018 INTERNATIONAL ISO STANDARD 4898 Sixth edition 2018-03-20 Rigid cellular plastics Thermal insulation products for buildings Specifications Plastiquesalveolaires rigides-Produitsd'isolation thermique pour batiments-Spécifications Reference number ISO 4898:2018(E) ISO @ IS0 2018