ČSN EN IEC 60942-ed.2

Podrobné informace

Označení: ČSN EN IEC 60942-ed.2

Datum vydání: 01.09.2018

Stran: 64

Země: Česká technická norma

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Anotace

This document specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound level meter, as specified in IEC 61672-1