Electroacoustics. Sound level meters - Specifications Ingestion-build-81500 Machine marking

Machine marking

BS EN 1563 specifies two groups of spheroidal graphite cast iron grades by a classification based on mechanical properties measured on machined test pieces prepared from cast samples

Both these international standards are part of the BS 8888 family on technical product documentation and specification

the right system design

Electroacoustics. Sound level meters - Specifications Ingestion-build-81500 Machine markingElectroacoustics Sound level meters Part 1: Specifications Executive summary Electroacoustical performance specifications of sound level meters. Abstract This European Standard gives electroacoustical performance specifications for three kinds of sound measuring instruments: a conventional sound level meter that measures exponential time weighted sound level; an integrating averaging sound level meter that measures time average sound level; and an