Historical
ISO 140-2:1991
Acoustics -- Measurement of sound insulation in buildings and of building elements -- Part 2: Determination, verification and application of precision data
This part of ISO 140 specifies procedures for assessing the uncertainty in the acoustical measurements described in ISO 140-3 to ISO 140-9 due to random and systematic influences.
It gives guidelines for
- determination of the repeatability value r and the reproducibility value R;
- verification of repeatability values r and reproducibility values R for different measurement arrangements in one laboratory and for comparisons between different laboratories;
- application of repeatability values r and reproducibility values R in practice.
Tentative repeatability values and reproducibility values of the test methods according to ISO 140-3, ISO 140-4 and ISO 140-6 to ISO 140-8 are given in annex A.
Content Provider
International Organization for Standardization [iso]
