Scope
ISO 3747:2010
Sound Power Level — In-Situ Reference Source Method
This engineering/survey method determines sound power levels using a calibrated reference sound source to account for acoustic environmental conditions during in-situ measurements. It is particularly useful for large or immobile equipment where laboratory testing is impractical, and for on-site verification of noise compliance. The reference source approach compensates for acoustic environmental effects, improving accuracy compared to basic survey methods. Accreditation ensures proper reference source maintenance and measurement protocols are followed. This method is essential for field acceptance testing and environmental noise assessments.
What it measures
- Sound power level (Lw) referenced to 1 pW
- A-weighted and frequency-weighted sound power
- Environmental acoustic correction factors
- In-situ acoustic performance
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DIN EN ISO 3746
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BS EN ISO 3746
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NF EN ISO 3746
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UNI EN ISO 3746
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UNE EN ISO 3746
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NEN EN ISO 3746
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DIN EN ISO 9614-1
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BS EN ISO 9614-1
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NF EN ISO 9614-1
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UNI EN ISO 9614-1
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UNE EN ISO 9614-1
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NEN EN ISO 9614-1
1,868
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NF X 43-269
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BJL Laboratoires
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NF X 43-269
NF X 43-050
ISO 22262-1
NF X 43-269 - Annexe K
NF X 43-298
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DIN EN ISO 18119
BS EN ISO 10460:2018
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DIN EN ISO 6246
DIN 53160-1
DIN EN ISO 22854
(LBLS) (OMIM 611105) (c.228-
DIN EN 13016-1
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BS EN ISO 717-2:2020
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ISO 5667-5
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Nominal value
TEMPERATURE
See Notes 1 to 3
TORQUE
Case Manager: BC4
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DIN EN ISO 10523
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BUREAU VERITAS EXPLOITATION
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NF X43-551
DIN 16961-2
DIN EN 14790
AG2 and IS EN 15259:2007
DIN EN 14181
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UNE-EN 13284-2
UNE-EN 15259
UNE-EN 16911-2
UNE-EN 13284-1
UNE EN 1911
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Babcock Marine [Rosyth]
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14B based on HSG 248
DIN EN 12021
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(PCM) based on HSG 248
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AM09 based on BS ISO 21527-1:
DIN EN ISO 21528-2
DIN EN ISO 4833-2
BS ISO 15214:1998
0.95) based on BS ISO 21527-2:2008
Bareiss Prüfgerätebau
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Sound intensity — scanning method (ISO 9
Messgeräte für die
Härteskale Shore A*
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Railway freight wagon brake system requi
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DIN EN ISO17892-12
DIN 18134
DIN 18122-2
DIN 19698-1
Bax Engineering
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Temperaturanzeigegeräte
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verwendete Abkürzungen:
Salmonella spp.
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Treponema pallidum (Lues)
Thrombozytäre Antikörper
dysenteriae), Vibrio cholerae
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BeckProsper
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ASTM A370-24
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ASTM E 384-22
ASTM E8/E8M-24
ISO 6507-1
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Echinococcus granulosus
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Paragonimus uterobilateralis
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Brucella spp. (IgG, IgM)
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Best Srl
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ISO 16181-1
NF EN ISO-15587-2
ISO 16186
DIN EN ISO 17229
DIN EN ISO 17232
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Vickers hardness test (ISO 6507)
Temperatur *
Temperaturmessgrößen −35 °C
Railway braking — urban guided transport
Temperatur −40 °C
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Hämoglobin
Differentialblutbild
Erythrozyten
Großes Blutbild
Kleines Blutbild
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Okkultes Blut
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