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This document specifies test methods for the determination of the technical characteristics of underlays under modular mechanical locked floor coverings. It can be used to compare different underlays and to encourage the consumer to make an informed choice. It also specifies requirements for marking and packaging.
Underlays pre-attached to the flooring coverings are not covered by this document.
This document is not applicable to the performance of the floor covering system. This will be checked separately depending on the used floor covering.