标准编号：ISO 1663:2023
中文名称：硬质泡沫塑料 水蒸汽透过性能的测定
英文名称：Rigid cellular plastics — Determination of water vapour transmission properties
发布日期：2023-08
标准范围
This document specifies a method of determining the water vapour transmission rate, water vapour permeance, water vapour permeability and water vapour diffusion resistance index for rigid cellular plastics. This method is applicable for the testing of rigid cellular materials that have thicknesses from 10 mm upwards and can, as an integral part of the material, contain natural skins or adhered facings of some different material. Three different sets of temperature and humidity conditions are provided, as follows: a) 38 °C and a relative-humidity gradient across the test specimen of 0 % to 88 % b) 23 °C and a relative-humidity gradient across the test specimen of 0 % to 85 % c) 23 °C and a relative-humidity gradient across the test specimen of 0 % to of 50 %
The results obtained by this method are suitable for design purposes and production control, and for inclusion in product specifications.
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