EN 823 is a European Standard that specifies the methods and procedures for measuring the thickness of thermal insulation products used in building applications. The standard applies to insulation boards, slabs, or panels, and defines how to take accurate thickness measurements under controlled conditions.

Determining the thickness of insulation materials is essential to ensure compliance with design specifications, thermal performance requirements, and quality standards. Accurate measurement helps to verify that the products meet the intended performance criteria for walls, roofs, floors, and other building elements.

For more information about this test method, please visit the official DS (Danish Standards) website.