Thermal insulating products for building applications - Determination of short-term water absorption by partial immersion
1 Scope
This document specifies the equipment and procedures for determining the short-term water absorption of specimens by partial immersion.
It is applicable to thermal insulating products.
Note: It is intended to simulate the water absorption caused by a 24 h raining period during construction work.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 29768, Thermal insulating products for building applications - Determination of linear dimensions of test specimens
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
A test specimen is placed with its lower part in water, for a period of 24 h, and its change in mass is measured.
The excess water adhering to the surface but not absorbed by the test specimen is removed by drainage (method A) or taken into account by deduction of the initial water uptake (method B).
