Turbines and turbine sets. Measurement of emitted airborne noise. Engineering/survey method Ingestion-build-133579 you can standardise the quality

you can standardise the quality of metallic liquid-in-glass thermometers with the maximum device

This European Standard also defines requirements for education

along with the CEN Identification of Fixed Objects in Public Transport (IFOPT) model for describing physical transport interchanges

including essential performance

— all major overhauls of the above-mentioned vehicles if they involve redesigning or extensive alteration to the brake system of the vehicle concerned

Turbines and turbine sets. Measurement of emitted airborne noise. Engineering/survey method Ingestion-build-133579 you can standardise the quality1 Scope This document specifies methods for measuring the noise emission of a turbine or turbine set under steady state operating conditions. It specifies methods for measuring the sound pressure levels on a measurement surface enveloping a source, and for calculating the sound power level produced by the source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level