ISO 23999 Flexible Floor Coverings - Determination of Dimensional Stability and Curl after Exposure to Heat

The ISO 23999 standard, developed by the International Standards Organization (ISO), defines a test method for determining the dimensional stability and curling of flexible floor coverings in the form of sheet, tile or plank after exposure to heat.

For the purposes of this standard,

• Dimensional stability refers to the ability of a resilient floor covering to maintain its original dimensions after exposure to heat under certain conditions.
• The expression curl refers to the vertical deformation seen in the sample after it has been subjected to a heat treatment under certain conditions.
• The expression domed material refers to the sample area that does not rest against the support plate when centered.

The dimensional stability and bending test chamber used in this test method is used for flexible floor coverings such as bamboo flooring, cork flooring, general flooring, hardwood flooring, laminate flooring, resilient flooring, to determine the dimensional stability and curling after exposure to heat.

The traditional test method is based on the manual use of a micrometer to measure the dimensional deformation of resilient floor coverings after heating. However, in advanced laboratories an automatic online measurement is implemented using an electronic sensor with a temperature and humidity test chamber to automatically record the test data. These systems not only improve testing efficiency, but also greatly improve testing accuracy.

In the ISO 23999 standard, vertical deformations are measured on the test sample after the applied heat treatment. The test specimens are placed in a high temperature oven, after which curl and dimensional stability are determined. In the case of domed material, the test sample is inverted to measure inverted or with the back of the sample facing up.

These tests also comply with the ASTM F2199 standard (ASTM F2199-20 Standard test method for determining the dimensional stability and curling properties of flexible flooring after exposure to heat). This test method determines the change in linear dimensions of flexible floor tiles and planks after exposure to heat and reconditioning to ambient temperature.

Among the numerous test, measurement, analysis and evaluation studies that our company provides for businesses in various sectors, with its trained and expert staff and advanced technological equipment, within the scope of ISO 23999 standard, test services for the determination of dimensional stability and curling of flexible floor coverings after exposure to heat are also available. gives.