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
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TELEACUSTIK INGENIEROS
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UNE-EN ISO 16283-3
DIN EN ISO 16283-1
UNE-EN ISO 3382-2
BS EN ISO 16283-2:2020
- Gleichspannung
/ Messgeräte
0,1 mV
> 220 mV
> 2,2 V
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DIN ISO 16000-6
DIN ISO 16000-3
DIN EN ISO 16017-2
DIN EN 16339
DIN ISO 16000-4
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TERANA CANTAL
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DIN EN ISO 17294-2
DIN EN ISO 14403-2
NF U47-105
NF T 90-412
DIN EN ISO 7899-1
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DIN EN ISO 14403-2
VDE 414-9-11
DIN ISO 11465
DIN EN ISO 10304-1
NF-T 90-029
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DIN EN ISO 13395
NF T 90-412
VDE 414-9-11
DIN EN ISO 7899-1
DIN EN ISO 10304-1
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DIN EN ISO 17294-2
NF T 90-412
DIN EN ISO 10304-1
NF X 31-615
ISO 5815-1
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NF T 90-412
NF U47-101
DIN EN ISO 7899-1
DIN ISO 16649-2
DIN EN ISO 6888-2
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TES Time Elektronik Struck
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Elektrische Messgrößen
Gleichstrom- und Niederfrequenzmessgröße
Railway brake — magnetic track brakes (U
− Gleichspannung
− Gleichstromstärke
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ISO 17704
BS EN ISO 14362-1
ISO 1841-2
BS EN ISO 14362-3
ISO 16181-1
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TESTING Bluhm & Feuerherdt
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Tensile testing of metallic materials (I
Kraft (WPM) 0,1 kN
Werkstoffprüfmaschinen
Kraftmessgeräte 0,1 kN
Acoustics — tonality assessment (DIN 456
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TFI Aachen
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ISO 7176-16
ISO 8191-1
ISO 8191-2
EN ISO 11925-2
DIN EN 1021-1
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DIN EN 16615
DIN EN 17658
DIN EN 13697
IEC 60127-6
DIN EN 13727
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TIRA
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Kraft (WPM)
Kraftmesseinrichtungen von
Werkstoffprüfmaschinen
Acoustics — tonality assessment (DIN 456
Länge (WPM)
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DIN EN IEC 60068-2-13
DIN EN IEC 60068-2-52
DIN EN 60068-2-64
DIN EN 60068-2-78
DIN 53505
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DIN EN ISO 3596
DIN EN ISO 14780
BS ISO 18283:2022
DIN EN ISO 10893-6
DIN EN 61442
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NF ISO 21438-3
NF X 43-264
NF ISO 21438-1
ISO 16200-2
NF ISO 21438-2
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UNE-EN 60942
UNE-EN 61672-3
UNE-EN 60804
UNE-EN 60651
UNE-EN 61252
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UNE-EN ISO 868
ASTM D 2240
ISO 48-9
UNE 7050-3
UNE-EN ISO 10360-2
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UNE-EN 61672-3
UNE-EN 60651
UNE-EN 60804
UNE-EN 61252 (Técnica calibrador acústic
UNE-EN 60942
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ASTM E 415 21
DIN EN 15266
ASTM D 1329
UNI EN ISO 22391
DIN EN ISO 10140-1
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ETSI EN 301 489-1: V2.2.3
IEC 62109-1
DIN EN 50178: 1998
IEC 61000-4-16: 2015
IEC 62109-2
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