Abstract:
Due to the publication of the latest edition of ISO / IEC 17025 (2017 edition), the presentation
of measurement uncertainty values associated with sound insulation tests, becomes an
important requirement. Taking into account the complexity of the mathematical model
associated with the measurement of sound insulation, and the traditional method for assessing
measurement uncertainty in building acoustics, the estimation of measurement uncertainty
from the standard deviation associated with inter-laboratory tests is considered a relevant
option.
This paper intends to present some considerations about the suitability of using the uncertainty
value associated with the sound insulation index and its implications in terms of laboratories
accreditation, customer satisfaction and regulations compliance.