SFS-EN ISO 3745:en

Soveltamisala

Suomenkielistä soveltamisalaa ei ole saatavissa.

Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).

Sisällysluettelo

Foreword
Introduction
1 Scope

1.1 General
1.2 Types of noise and noise sources
1.3 Test room
1.4 Measurement uncertainty

2 Normative references
3 Terms and definitions
4 Reference meteorological conditions
5 Test rooms

5.1 Acoustic criterion for adequacy of the test room
5.2 Criteria for background noise
5.3 Criterion for air temperature

6 Instrumentation

6.1 Instruments for acoustical measurements
6.2 Instruments for meteorological measurements

7 Definition, location, installation and operation of noise source under test

7.1 General
7.2 Auxiliary equipment
7.3 Noise source location
7.4 Mounting of the noise source
7.5 Operation of source during test

8 Measurement surface

8.1 Spherical measurement surface for use in an anechoic room
8.2 Hemispherical measurement surface for use in a hemi-anechoic room

9 Determination of sound power levels and sound energy levels

9.1 Measurements in the test room
9.2 Measurement of meteorological conditions
9.3 Microphone positions
9.4 Determination of sound power levels of a noise source which emits steady or non-steady noise
9.5 Determination of sound energy levels for a noise source which emits impulsive noise
9.6 Calculation of directivity indices
9.7 Calculation of surface sound pressure level non-uniformity index
9.8 Frequency-weighted sound power level and sound energy level

10 Measurement uncertainty

10.1 Methodology
10.2 Determination of σomc
10.3 Determination of σR0
10.4 Typical upper bound values of σR0
10.5 Total standard deviation, σtot, and expanded measurement uncertainty, U

11 Information to be recorded

11.1 General
11.2 Noise source under test
11.3 Test room
11.4 Instrumentation
11.5 Acoustical data

12 Test report

Annex A General procedures for qualification of anechoic and hemi-anechoic rooms (normative)
Annex B Qualification procedure for spaces within test rooms used in the determination of sound power levels and sound energy levels of specific noise sources (normative)
Annex C Calculation of A-weighted sound power levels and A-weighted sound energy levels from one-third-octave band levels (normative)
Annex D Array of microphone positions on a spherical measurement surface in a free field (normative)
Annex E Arrays of microphone positions on a hemispherical measurement surface in a hemi-free field (normative)
Annex F Coaxial circular paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex G Meridional paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex H Spiral paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex I Guidance on the development of information on measurement uncertainty (informative)

Bibliography

Näytä kaikki

Foreword
Introduction
1 Scope

1.1 General
1.2 Types of noise and noise sources
1.3 Test room
1.4 Measurement uncertainty

2 Normative references
3 Terms and definitions
4 Reference meteorological conditions
5 Test rooms

5.1 Acoustic criterion for adequacy of the test room
5.2 Criteria for background noise
5.3 Criterion for air temperature

6 Instrumentation

6.1 Instruments for acoustical measurements
6.2 Instruments for meteorological measurements

7 Definition, location, installation and operation of noise source under test

7.1 General
7.2 Auxiliary equipment
7.3 Noise source location
7.4 Mounting of the noise source
7.5 Operation of source during test

8 Measurement surface

8.1 Spherical measurement surface for use in an anechoic room
8.2 Hemispherical measurement surface for use in a hemi-anechoic room

9 Determination of sound power levels and sound energy levels

9.1 Measurements in the test room
9.2 Measurement of meteorological conditions
9.3 Microphone positions
9.4 Determination of sound power levels of a noise source which emits steady or non-steady noise
9.5 Determination of sound energy levels for a noise source which emits impulsive noise
9.6 Calculation of directivity indices
9.7 Calculation of surface sound pressure level non-uniformity index
9.8 Frequency-weighted sound power level and sound energy level

10 Measurement uncertainty

10.1 Methodology
10.2 Determination of σomc
10.3 Determination of σR0
10.4 Typical upper bound values of σR0
10.5 Total standard deviation, σtot, and expanded measurement uncertainty, U

11 Information to be recorded

11.1 General
11.2 Noise source under test
11.3 Test room
11.4 Instrumentation
11.5 Acoustical data

12 Test report

Annex A General procedures for qualification of anechoic and hemi-anechoic rooms (normative)
Annex B Qualification procedure for spaces within test rooms used in the determination of sound power levels and sound energy levels of specific noise sources (normative)
Annex C Calculation of A-weighted sound power levels and A-weighted sound energy levels from one-third-octave band levels (normative)
Annex D Array of microphone positions on a spherical measurement surface in a free field (normative)
Annex E Arrays of microphone positions on a hemispherical measurement surface in a hemi-free field (normative)
Annex F Coaxial circular paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex G Meridional paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex H Spiral paths of microphones on a hemispherical measurement surface in a hemi-free field (normative)
Annex I Guidance on the development of information on measurement uncertainty (informative)

Bibliography

Tuoteryhmä(t)

17.140.01 Akustiset mittaukset ja meluntorjunta yleensä »

Sidokset

Velvoittavat viittaukset

IEC 60942:2003
IEC 61183:1994
IEC 61260 AMD 1:2001

IEC 60942:2003
IEC 61183:1994
IEC 61260 AMD 1:2001
IEC 61260:1995
IEC 61672-1:2002
ISO 12001:1996 Acoustics -- Noise emitted by machinery and equipment -- Rules for the drafting and presentation of a noise test code
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
ISO 5725-1:1994/Cor 1:1998
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 5725-2:1994/Cor 1:2002
ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 3: Intermediate measures of the precision of a standard measurement method
ISO 5725-3:1994/Cor 1:2001
ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 4: Basic methods for the determination of the trueness of a standard measurement method
ISO 5725-5:1998 Accuracy (trueness and precision) of measurement methods and results -- Part 5: Alternative methods for the determination of the precision of a standard measurement method
ISO 5725-5:1998/Cor 1:2005
ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 6: Use in practice of accuracy values
ISO 5725-6:1994/Cor 1:2001
ISO 5725:1986 Precision of test methods -- Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
ISO 9613-1:1993 Acoustics -- Attenuation of sound during propagation outdoors -- Part 1: Calculation of the absorption of sound by the atmosphere
ISO/IEC Guide 98-3:2008 Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

Tekninen komitea

CEN/TC 211 Acoustics »

Direktiivi

98/37/EC Koneturvallisuus
2006/42/EC Koneturvallisuus

http://ec.europa.eu »

Vahvistuspäivä

21.05.2012

Julkaisupäivä

08.06.2012

Painos

3

Sivumäärä

68

Julkaisun kieli

englanti