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БДС EN 13469:2012

Thermal insulating products for building equipment and industrial installations - Determination of water vapour transmission properties of preformed pipe insulation

Dec 18, 2012
Feb 15, 2013

General information

90.92     Jul 16, 2020

September 2025



European Standard


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This European Standard specifies the equipment and procedure for determining the water vapour transmission properties in the steady state under specified test conditions for test specimens of preformed pipe insulation. It is applicable to thermal insulating products.
It is intended to be used for homogeneous materials (see NOTE) and for products which may have integral skins or adhered facings of some different material.
NOTE A material is considered to be homogeneous in terms of mass distribution if its density is approximately the same throughout, i.e. if the measured density values are close to its mean density.
The water vapour transmission rate and permeance values are specific to the test specimen (i.e. the product) thickness tested. For homogeneous products, the water vapour permeability is a property of the material.
If the pipe insulation is cut from a flat product, then the water vapour transmission properties can be obtained from tests carried out on the flat product with similar properties in accordance with EN 12086.

Life cycle


БДС EN 13469:2003


БДС EN 13469:2012
90.92 Standard to be revised
Jul 16, 2020


БДС EN ISO 12629:2023

Related project

Adopted from EN 13469:2012