This document specifies laboratory test facilities and equipment for sound insulation measurements of building elements, such as: . components and materials; . building elements; . technical elements (small building elements); . sound insulation improvement systems. It applies to laboratory test facilities with suppressed radiation from flanking elements and/or structural insulation between source and receiving rooms. This part of ISO 10140 specifies qualification procedures that shall be used when commissioning a new test facility with equipment for sound insulation measurements. These procedures shall be repeated periodically to ensure that there are no issues with the equipment and the test facility.