NS EN ISO 3381 : 2011

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement quantities
5 Instrumentation
6 Test conditions
7 Test procedure
8 Test report
Annex A (normative) Rail roughness measurement
                       specifications
Annex B (informative) Major influence parameters on
                       track noise including track
                       dynamics
Bibliography

Describes the conditions for obtaining reproducible and comparable measurement results of levels and spectra of noise inside all kinds of vehicles on rails or other types of fixed track, hereinafter conventionally called "train", except for track maintenance vehicles in operation.