ISO 4898:2025 PDF
Rigid cellular plastics — Thermal insulation products for buildings — Specifications
Rigid cellular plastics — Thermal insulation products for buildings — Specifications
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 13
- Дата публикации:
- 13 октября 2025 г.
- Издание:
- ISO IS 4898 edition 7 version 1
- ICS:
- 83.100
This document specifies requirements and methods of testing for three categories of rigid cellular plastics thermal-insulation products for buildings. It covers rigid cellular plastics in the form of flat or profiled boards, with or without natural skins. They can also be faced or laminated with foil, plastic or metal films or sheets, mineral coatings, paper, cardboard, or other materials. This document is not applicable to materials used for the thermal insulation of pipes and vessels, for impact sound absorption or for acoustical insulation. This document covers the following cellular materials used in the thermal insulation of buildings: — PF based on phenolic polymer; — EPS based on expanded polystyrene; — XPS based on extruded polystyrene; — PUR based on polyurethane. The limiting quality values in this document are for use only in the specification of materials between purchaser and supplier.
Abstract
Overview - ISO 4898:2025 (Rigid cellular plastics - Thermal insulation products for buildings)
ISO 4898:2025 specifies requirements and test methods for rigid cellular plastics used as thermal-insulation products for buildings. It applies to flat or profiled boards (with or without natural skins) that may be faced or laminated with foil, films, metal sheets, mineral coatings, paper or other facings. The standard covers four material families: PF (phenolic foam), EPS (expanded polystyrene), XPS (extruded polystyrene) and PUR (polyurethane). It excludes pipe/vessel insulation and materials intended solely for impact sound absorption or acoustic insulation. Limiting quality values in ISO 4898:2025 are intended for specification between purchaser and supplier (not for structural design).
Key topics and technical requirements
- Product categories and subcategories
- Three usage categories (I, II, III) based on load-bearing and temperature/creep requirements.
- Subcategories A/B/C further differentiate maximum thermal-conductivity values (used as limiting specification values).
- Sizes and dimensional tolerances
- Boards to be supplied in agreed dimensions or per ISO 21723; examples from the standard include length/width tolerances (e.g.,
Технические детали
- Технический комитет
- ISO/TC 61/SC 10 - Cellular plastics
- SKU
- ISO 4898:2025
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