SIS (Swedish Standards Institute) is a member-based, non-profit association specialized in national and international standards. The market leader in standards in Sweden, SIS is recognized for its professionalism, expertise and openness in relation to customers, employees, suppliers and partners. Read more about it here

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The sound absorption property of a product is measured in square meters Sabine (m²S). The value declares how large “perfect” absorber a product is equivalent to. One square meter Sabine is declared for a product whose sound absorption is equivalent to one square meter perfect sound absorber. A higher value represents more sound absorption. The measure with square meters Sabine as unit is often called ‘absorption surface’ or just ‘absorption’.

The addition ‘Sabine’ (S) to square meter (m²)is used to distinguish the value from ordinary geometric surface. Ordinary geometric surface can be measured using a ruler or a measuring tape, but an acoustic laboratory is needed to measure the absorption surface in square meters Sabine.

The name Sabine has historic origin and it is used in honour to the American scientist Wallace Clement Sabine, who founded the science of architectural acoustics through his experiments at Harvard in the end of the 19^th century.

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Acoustic Facts main location is in Sweden but we work all over the world. Our goal is to be able to help customers all over the world to get a sustainable sound environment.  To find a contact person in your country please go here.  If you can't find and contact person in you country please email your inquiries to us and we will get back to you as soon as possible.