SIST EN ISO 14509:2001

SLOVENSKI STANDARD
01-junij-2001
Mala plovila - Merjenje zvoka v zraku, ki ga oddajajo motorizirana rekreacijska
plovila (ISO 14509:2000)
Small craft - Measurement of airborne sound emitted by powered recreational craft (ISO
14509:2000)
Kleine Wasserfahrzeuge - Messung des von motorgetriebenen Sportbooten
abgestrahlten Luftschalls (ISO 14509:2000)
Petits navires - Mesurage du bruit aérien émis par les navires de plaisance motorisés
(ISO 14509:2000)
Ta slovenski standard je istoveten z: EN ISO 14509:2000
ICS:
17.140.30
47.080
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 14509
First edition
2000-11-01
Small craft — Measurement of airborne
sound emitted by powered recreational
craft
Petits navires — Mesurage du bruit aérien émis par les navires de
plaisance motorisés
Reference number
ISO 14509:2000(E)
©
ISO 2000
ISO 14509:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 14509:2000(E)
Contents Page
Foreword.iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 Symbols .3
5 Measurement quantity.3
6 Measurement uncertainty .4
7 Measuring equipment.4
7.1 Equipment specifications .4
7.2 Equipment calibration .4
8 Test site specifications and environmental conditions.5
8.1 Test site specifications .5
8.2 Environmental conditions.5
8.3 Background noise.5
9 Test course, microphone positions and measurement distance .6
9.1 General.6
9.2 Distance correction .7
10 Operating conditions.7
11 Test procedure.8
12 Test report .8
13 Standard craft specifications for outboard motor type tests according to clause 10.10
Annex A (normative) Measurement of the sound exposure level.11
Annex B (informative) Example of test report form.14
Bibliography.16
ISO 14509:2000(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 14509 was prepared by Technical Committee ISO/TC 188, Small craft.
Annex A forms a normative part of this International Standard. Annex B is for information only.
iv © ISO 2000 – All rights reserved

INTERNATIONAL STANDARD ISO 14509:2000(E)
Small craft — Measurement of airborne sound emitted by powered
recreational craft
1 Scope
This International Standard specifies the conditions for obtaining reproducible and comparable measurement
results of the maximum sound pressure level of airborne sound generated during the passage of powered
recreational craft of up to 24 m length of hull, including inboards, stern drives, personal watercraft (PWC) and
outboard motors used in conjunction with a standard craft.
Annex A specifies the procedure to be followed if, in addition to the maximum sound pressure level, the
determination of the sound exposure level is desired.
NOTE For craft other than those specified above, ISO 2922 is applicable for sound emission measurements.
The accuracy grade of the acoustical test procedures specified in this International Standard is engineering grade
(grade 2) as defined in ISO 12001. See also clause 6.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 8665, Small craft — Marine propulsion engines and systems — Power measurements and declarations.
ISO 10087, Small craft — Hull identification — Coding system.
ISO 12001, Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a
noise test code.
1)
IEC 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications.
IEC 60942, Electroacoustics — Sound calibrators.
1) To be published. (Revision of IEC 60651 and IEC 60804)
ISO 14509:2000(E)
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
type test for recreational craft
measurement performed to prove that the sound of the craft in motion, or of the outboard motor when using a
standard craft, as delivered by the manufacturer, complies with sound specifications or prescribed limits
NOTE See also definition of "acceptance test" in ISO 2922.
3.2
monitoring test for reacreational craft
measurement performed in order to check that the sound of the craft in motion, or of the outboard motor when
using any craft, is still within prescribed limits and that no noticeable changes have occurred since the acceptance
on initial delivery or after modification, as applicable
NOTE 1 Subsequent type testing may also be required in the case of a significant change.
NOTE 2 See also definition of "monitoring test" in ISO 2922.
3.3
maximum AS-weighted sound pressure level for recreational craft
maximum AS-weighted sound pressure level
L
pASmax
maximum sound pressure level achieved from measurement of the passage of the craft under specified operating
conditions measured with frequency weighting A and with time weighting S (slow) according to IEC 61672-1
NOTE It is expressed in decibels (dB).
3.4
A-weighted sound exposure
E
A
time integral of squared, instantaneous, A-weighted sound pressure over a stated time interval or event
NOTE 1 It is expressed in pascal squared seconds (Pa �s).
NOTE 2 In symbols, the A-weighted sound exposure, E , of a specified event (e.g. the passage of a craft), is represented by
A
t
Ep� t dt (1)
��
AA
�
t
wherept is the squared, instantaneous, A-weighted sound pressure as a function of running time t for an integration time
� �
A
starting at t and ending at t (see A.7.2).
1 2
NOTE 3 This definition applies only for the optional measurement of sound exposure level according to annex A.
3.5
A-weighted sound exposure level
L
AE
ten times the logarithm to the base 10 of the ratio of an A-weighted sound exposure, E , to the reference sound
A
exposure, E , given by the product of the square of the reference sound pressure of p =20�Pa and the sound
0 0
2 –10 2
exposure reference duration of T =1 s (E = p T =4� 10 Pa �s)
0 0 0 0
NOTE 1 It is expressed in decibels (dB).
2 © ISO 2000 – All rights reserved

ISO 14509:2000(E)
NOTE 2 In symbols, the A-weighted sound exposure level, L , of a specified event [e.g. the passage of a vessel (see
AE
A.7.2)] with the duration T = t – t , is related to a corresponding measurement of time-averaged A-weighted sound pressure
2 1
level, L by
pAeq,T
��t
��
����2
pt dt
� �
A
���
��
�� � �
����t ET
�� A
LL��10 lg dB 10 lg dB�� 10 lg dB (2)
��
AAEpeq,T
�� � �
��ET� �
pT
��00
��
��
��
wherept� is the squared, instantaneous, A-weighted sound pressure as a function of running time t.
�
A
NOTE 3 The A-weighted sound exposure level L is arithmetically identical to the single-event sound pressure level L
p,1s
AE
(reference duration T = 1 s) as, for example, defined in ISO 3744.
NOTE 4 The abbreviation "SEL" is sometimes used for the single-event sound pressure level, L .
p,1s
NOTE 5 In this International Standard, the sound exposure level is to characterize the emission of the source and not the
noise impact on people exposed to the sound.
NOTE 6 This definition applies only for the optional measurement of sound exposure level according to annex A.
3.6
background noise for recreational craft
background noise
noise from all sources other than the craft under test
EXAMPLE Noise from waves splashing on the measuring craft or the shore, other craft or equipment, and wind effects.
4 Symbols
The following symbols are used in this International Standard:
L� the maximum AS-weighted sound pressure level during the passage, expressed in decibels (dB);
pASmax
L�� the AS-weighted background sound pressure level, expressed in decibels (dB);
pAS
L L� after applying background noise correction according to 8.3 and distance correction
pASmax
pASmax
according to 9.2, expressed in decibels (dB);
L� the A-weighted sound exposure level during the passage, expressed in decibels (dB);
AE
L�� the A-weighted background sound exposure level, expressed in decibels (dB);
AE
L L� after applying background noise correction according to A.5 and distance correction
AE AE
according to A.6, expressed in decibels (dB).
5 Measurement quantity
The quantity to be measured during the passage of the craft is the maximum AS-weighted sound pressure level,
L� .
pASmax
From this quantity, the maximum AS-weighted sound pressure level L is determined by applying the
pASmax
background noise correction and distance correction, if applicable.
ISO 14509:2000(E)
6 Measurem
...