ISO 20393:2007
Thermal-insulating materials - Determination of long-term water absorption by diffusion

Standard No.

ISO 20393:2007

Release Date

2007

Published By

International Organization for Standardization (ISO)

Latest

ISO 20393:2007

Scope

This International Standard specifies equipment and procedures for determining the long-term water absorption of test specimens by diffusion. It is intended for use with thermal-insulation products. It is designed to simulate the absorption of water by products subjected for a long period of time not only to high relative humidity, approximating to 100 %, on both sides, but also to a water vapour pressure gradient, as experienced by e.g. inverted roof or unprotected ground insulation. The test is not applicable to all types of thermal-insulation product. The product standard should normally state whether this test is applicable to a particular product.

ISO 20393:2007 Referenced Document

• ISO 1923 Cellular plastics and rubbers; Determination of linear dimensions
• ISO 472 Plastics — Vocabulary — Amendment 1: Additional items*， 2018-10-31 Update

ISO 20393:2007 history

• 2007 ISO 20393:2007 Thermal-insulating materials - Determination of long-term water absorption by diffusion