Technical Booklet G Resistance to the Passage of Sound·Page 118·B1.4
B1.4 Qualifications of Test Bodies and Instrumentation Requirements
Sound insulation testing must be carried out by accredited test bodies such as those with UKAS accreditation or ANC Registration Scheme membership, using measurement instrumentation with valid calibration certificates tested within the past two years.
The person carrying out the building work should arrange for sound insulation testing to be carried out by a test body with appropriate third party accreditation. Test bodies conducting testing should preferably have UKAS accreditation (or a European equivalent) for field measurements. The Department also regards members of the ANC Registration Scheme as suitably qualified to carry out pre-completion testing. The measurement instrumentation used should have a valid, traceable certificate of calibration, and should have been tested within the past two years.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet G - Resistance to the Passage of Sound.pdf