The German Association of Materials Testing Institutions (VMPA) has been successfully organising comparative tests for sound insulation testing bodies for years, and since 2013 these have had a new format as a 2-day measuring campaign with five test centres measuring in parallel. The tests are mandatory for VMPA-recognised sound insulation testing bodies.
Since 2016, the comparative measurements for impact noise, airborne noise and installation noise have been conducted on the premises with technical support from MFPA Leipzig GmbH. The specialist evaluation is carried out jointly with the National Metrology Institute of Germany (Physikalisch-Technische Bundesanstalt, PTB) and the German Acoustical Society (DEGA).
If you would like to participate, please send an email to berlin@. You can also find more information in the round-robin test database of the vmpa.deGerman Federal Institute for Materials Research and Testing (BAM), EPTIS: https://www.eptis.bam.de/eptis/WebSearch/view/144538
The relevant standards are: ISO 717-1, ISO 717-2, ISO 140-4, ISO 16283-1, ISO 140-7, ISO 10052