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EN IEC 60942:2018

Current

Current

The latest, up-to-date edition.

Electroacoustics - Sound calibrators

Published date

09-03-2018

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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Reference environmental conditions
5 Requirements
6 Instrument marking and documentation
Annex A (normative) - Pattern evaluation tests
Annex B (normative) - Periodic tests
Annex C (normative) - Pattern evaluation report
Annex D (informative) - Relationship between
        tolerance interval, corresponding acceptance
        interval and the maximum-permitted
        uncertainty of measurement
Annex E (informative) - Example assessments of
        conformance to specifications of this document
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

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.The acceptance limits for class LS sound calibrators are based on the use of a laboratory standard microphone, as specified in IEC 61094-1, for demonstrations of conformance to the requirements of this document. The acceptance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, for demonstrations of conformance to the requirements of this document. To promote consistency of testing of sound calibrators and ease of use, this documentcontains three normative annexes – Annex A "Pattern evaluation tests", Annex B "Periodic tests", Annex C "Pattern evaluation report", and two informative Annexes – Annex D "Relationship between tolerance interval, corresponding acceptance interval and the maximum-permitted uncertainty of measurement" and Annex E "Example assessments of conformance to specifications of this document". This document does not include requirements for equivalent free-field or random-incidence sound pressure levels, such as can be used in the overall sensitivity adjustment of a sound level meter.A sound calibrator can provide other functions, for exammple, tonebursts. Requirements for these other functions are not included in this document.

Committee
CLC/SR 29
DevelopmentNote
Supersedes EN 60942. (03/2018)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

EN 61000-6-1:2007 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments
IEC 61094-5:2016 Electroacoustics - Measurement microphones - Part 5: Methods for pressure calibration of working standard microphones by comparison
EN 61094-5:2016 Electroacoustics - Measurement microphones - Part 5: Methods for pressure calibration of working standard microphones by comparison
EN 61094-4:1995 Measurement microphones - Part 4: Specifications for working standard microphones
EN 55016-2-3:2017 Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements
EN 61000-6-3:2007/A1:2011/AC:2012 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-3: GENERIC STANDARDS - EMISSION STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS (IEC 61000-6-3:2006/A1:2010)
IEC 61000-6-2:2016 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments
OIML R 97 : 1990 BAROMETERS
IEC 61094-4:1995 Measurement microphones - Part 4: Specifications for working standard microphones
CISPR 16-1-1:2015 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus
IEC 60942:2003 Electroacoustics - Sound calibrators
ISO 266:1997 Acoustics — Preferred frequencies
EN 61094-1:2000 Measurement microphones - Part 1: Specifications for laboratory standard microphones
IEC 61094-1:2000 Measurement microphones - Part 1: Specifications for laboratory standard microphones
ISO/IEC Guide 98-4:2012 Uncertainty of measurement Part 4: Role of measurement uncertainty in conformity assessment
EN 61000-4-2:2009 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
IEC 60050-801:1994 International Electrotechnical Vocabulary (IEV) - Part 801: Acoustics and electroacoustics
CISPR 22:2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
EN 61000-4-3 : 2006 AMD 2 2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST
ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
IEC 61000-6-3:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
EN 61672-1:2013 Electroacoustics - Sound level meters - Part 1: Specifications
EN 55022:2010/AC:2011 INFORMATION TECHNOLOGY EQUIPMENT - RADIO DISTURBANCE CHARACTERISTICS - LIMITS AND METHODS OF MEASUREMENT (CISPR 22:2008)
EN 61000-6-2:2005/corrigendum:2005 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005)
IEC 61000-4-20:2010 Electromagnetic compatibility (EMC) - Part 4-20: Testing and measurement techniques - Emission and immunity testing in transverse electromagnetic (TEM) waveguides
IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
CISPR 16-2-3:2016 Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements
IEC 61000-6-1:2016 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity standard for residential, commercial and light-industrial environments
IEC 61094-2:2009 Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
EN ISO 266:1997 Acoustics - Preferred frequencies (ISO 266:1997)
EN 61000-4-20:2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-20: TESTING AND MEASUREMENT TECHNIQUES - EMISSION AND IMMUNITY TESTING IN TRANSVERSE ELECTROMAGNETIC (TEM) WAVEGUIDES
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
EN 55016-1-1:2010/A2:2014 SPECIFICATION FOR RADIO DISTURBANCE AND IMMUNITY MEASURING APPARATUS AND METHODS - PART 1-1: RADIO DISTURBANCE AND IMMUNITY MEASURING APPARATUS - MEASURING APPARATUS (CISPR 16-1-1:2010/A2:2014)

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