SIST EN 21683:1997
(Main)Acoustics - Preferred reference quantities for acoustic levels (ISO 1683:1983)
Acoustics - Preferred reference quantities for acoustic levels (ISO 1683:1983)
Akustik - Bevorzugte Bezugswerte für akustische Pegel (ISO 1683:1983)
Acoustique - Grandeurs normales de référence pour les niveaux acoustiques (ISO 1683:1983)
Akustika - Prednostne referenčne količine za akustične ravni (ISO 1683:1983)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 21683:1997
01-april-1997
$NXVWLND3UHGQRVWQHUHIHUHQþQHNROLþLQH]DDNXVWLþQHUDYQL ,62
Acoustics - Preferred reference quantities for acoustic levels (ISO 1683:1983)
Akustik - Bevorzugte Bezugswerte für akustische Pegel (ISO 1683:1983)
Acoustique - Grandeurs normales de référence pour les niveaux acoustiques (ISO
1683:1983)
Ta slovenski standard je istoveten z: EN 21683:1994
ICS:
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
SIST EN 21683:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWMEWYHAPO~HAR OPf-AHM3AuMfl fl0 CTAH~APTH3AL&lWORGANISATION INTERNATIONALE DE NORMALISATION
Acoustics . - Preferred reference quantities for
acoustic levels
Acoustique - Grandeurs normales de rkfkrence pour les niveaux acoustiques
First edition - 1983-10-01
UDC 534.6
Ref. No. ISO 1683-1983 (E)
Descriptors
: acoustics, acoustic measurement, Sound pressure quantities, units of measurement.
Price based on 2 pages
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bedies). The work of developing International
Standards is carried out through ISO technical committees. Every member body
interested in a subject for which a technical committee has been authorized 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council.
International Standard ISO 1683 was developed by Technical Committee ISO/TC 43,
Acoustics, and was circulated to the member bodies in December 1976.
lt has been approved by the member bodies of the following countries :
Australia
India Romania
Austria
Ireland South Africa, Rep. of
Belgium
Israel Spain
Canada Korea, Rep. of Sweden
Czechoslova kia
Mexico Switzerland
Denmark Netherlands United Kingdom
Finland New Zealand USSR
France Norway
Germany, F. R. Poland
Th e member bodies of the following countries expressed disapproval of the document
on technical grounds :
Japan
USA
0 Bnternational Organization for Standardisation, 1983
Printed in Switzerland
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INTERNATIONAL STANDARD
ISO 1683-1983 (El
Acoustics - Preferred reference quantities for
acoustic Ievels
0 lntroduction 1 Scope and field of application
0.1 Various kinds of levels expressed in decibels have This International Standard specifies reference quantities and
become common for acoustic measurements in gases, liquids
gives definitions of some levels for acoustics. lt applies to
and solid structures. A reference quantity, which is preferably oscillatory quantities.
independent of the medium, is needed for each kind of level.
For airborne Sound, a special reference Sound pressure is
2 References
preferred according to widespread use and legal implication.
ISO 3112, Quantities and units of periodic and related
0.2 For several kinds of levels, different reference quantities
phenomena.
have been used from time to time. Thus, for clarity, it is
necessary to indicate which reference quantity is being
ISO 3117, Quan tities and units of acoustics.
employed.
ISO 1000, SI units and recommendations for the use of their
multiples and of certain other units.
0.3 The magnitude of a reference quantity determines
whether the level for a particular variable quantity is positive or
ISO 2041, Vibration and shock - Vocabulary.
negative. For general measurements and many engineering
specifications, it is desirable that levels of a given kind be con-
IEC Publication 27-3, Letter Symbols to be used in electrical
sist
...
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