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
1,670
Accredited labs
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METROCAL CALIBRACIÓN
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1 g 2 g 5 g 10 g 20 g 50 g 100 g 200 g 5
5 kg
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100 kg 200 kg 500 kg 1000 kg
1 g 2 g 5 g 10 g 20 g 50 g 100 g 200 g 5
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METROPACK
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ISO 11607-1 ASTM F1886
BS EN ISO 11607-1:2020+A11
NF EN 868-5 annexe D
ASTM F88
DIN EN 12758
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ISO 5815-1
EN 13087-2
ISO 15705
NF T90-015-1
DIN EN ISO 10523
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NF T90-111
DIN EN ISO 17294-2
NF T 90-412
DIN EN ISO 6888-1
DIN EN ISO 7899-1
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MICROLAB
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VDE 414-9-11
DIN EN ISO 10304-1
NF V08-059
DIN EN ISO 10272-2
BS ISO 15214:1998
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DIN EN ISO 12945-2
DIN EN ISO 5403-1
DIN EN ISO 2060
DIN EN ISO 13937-1
DIN EN ISO 11642
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DIN EN 14511-2
DIN EN 14511-3
DIN EN 14511-4
DIN EN 14825
NF EN 16147
MK-Kalibrierlabor
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1350 mm
Innen- und Tiefenmaße *
> 300 mm
Tiefenmessschieber * 0 mm
Höhenmessschieber * 0 mm
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MLL MVZ
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MP Calibration Services
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Plain plug gauges (parallel)
length bars)
LENGTH (continued)
Micrometers
(enzephalomyopathische Form
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DIN EN 50178: 1998
DIN EN ISO 2813
DIN EN ISO 4628-4
DIN EN ISO 10456
DIN EN ISO 12572
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MPA Kalibrierdienst
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MS Laboratories
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on BS 4401:Part 3:1970(1986)
ISO 936:1998
BS ISO 21528-2:2017
BS ISO 16649-2:2001
ISO 6888-1
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MS Testing
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IEC 60068-2-2
BS EN 60945, section 8.2.
ISO 13628-6: 2006
IEC 60068-2-1
DIN EN 60068-2-30
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Tensile testing of metallic materials (I
Vickers hardness test (ISO 6507)
Taupunkttemperatur
direktanzeigende > 200 °C
Widerstandssensor > 300 °C
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MSS Consulting
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(HSG 264, 2012)
Appendix 5 of HSG 227 (2004)
Appendix 3 of HSG 227 (2004)
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(PCM) based on HSG 248
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MTS Systems (Germany)
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Kraft (WPM)
Vibration measuring instruments — test m
nen nach DIN 51220
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Vibration and shock — experimental modal
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Großes Blutbild
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Erythrozyten
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Blutzellen
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Antiepileptika:
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Arginin, ADMA, SDMA, Homoarginin
Bupropion / Hydroxybupropion
Cotinin, Nicotin
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Thrombozytenaggregation
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Spezifisches Gewicht
Aceton
Benzol
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