Electroacoustics. Sound level meters - Specifications Ingestion-build-209208 They include measurements and procedures

They include measurements and procedures required to determine specific enthalpy within the moisture region and describe precautions necessary to permit testing while respecting radiological safety rules in nuclear plants

— non-mineral oil drums

One way to do so is to use a counterbore

4 Test and measurements

These procedures appear for the first time in BS 1377-6

Electroacoustics. Sound level meters - Specifications Ingestion-build-209208 They include measurements and proceduresWhat is BS EN 61672 1 Sound level meters about? A sound level meter is a self contained hand held instrument with an attached microphone and a built in display device. BS EN 61672 1 is an International Standard that provides specifications for sound level meters. BS EN 61672 1 gives electro acoustical performance specifications for three kinds of sound measuring instruments: A time weighting sound level meter that measures exponential time weighted,