EN ISO 12999-1:2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Detailed uncertainty budget
5 Uncertainty determination by inter-laboratory
  measurements
6 Uncertainties associated with single-number
  values
7 Standard uncertainties for typical measurands
8 Application of the uncertainties
Annex A (informative) - Example of handling uncertainties
        in building acoustics
Annex B (informative) - Example for the calculation of
        the uncertainty of single number values
Annex C (informative) - Detailed uncertainty budget
Bibliography

ISO 12999-1:2014 specifies procedures for assessing the measurement uncertainty of sound insulation in building acoustics. It provides for a detailed uncertainty assessment, a determination of uncertainties by inter-laboratory tests, and an application of uncertainties.