ISO 1663:2007 PDF

Scope: This International Standard 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. The scope of this method provides for the testing of rigid cellular materials that have thicknesses from 10 mm upwards and which may, 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. The method is suitable for materials which have water vapour transmission rates in the range 3 ng/(m2⋅s) to 200 ng/(m2⋅s).

ISO 1663:2007 Referenced Document

ISO 1923 Cellular plastics and rubbers; Determination of linear dimensions
ISO 291 Plastics - Standard atmospheres for conditioning and testing*， 2008-05-01 Update
ISO 483 Plastics - Small enclosures for conditioning and testing using aqueous solutions to maintain the humidity at a constant value

2023 ISO 1663:2023 Rigid cellular plastics — Determination of water vapour transmission properties
2007 ISO 1663:2007 Rigid cellular plastics - Determination of water vapour transmission properties
1999 ISO 1663:1999 Rigid cellular plastics - Determination of water vapour transmission properties
1981 ISO 1663:1981 Cellular plastics; Determination of water vapour transmission rate of rigid materials