What should I check besides the 80 dB value?
Check frequency range, test method, sample construction and whether the value is typical, minimum or peak.
Can 80 dB material deliver 80 dB in a finished enclosure?
Not necessarily. Gaps, seams, cable penetrations, poor bonding and openings can reduce the overall result.
When should I request detailed test data?
When the project has a defined compliance target or sensitive frequency band, ask for a curve or frequency-by-frequency data.
Project note: Use supplier data as a starting point. Validate the finished assembly at the relevant frequencies and environmental conditions.