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
🇪🇸
UNE EN ISO 9614-1
🇳🇱
NEN EN ISO 9614-1
1,670
Accredited labs
18
Countries
Showing 551–575 of 1,670 labs
DIN 51757
DIN EN ISO 12185
DIN EN ISO 3405
DIN EN 13016-1
DIN EN 237
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GMA-Werkstoffprüfung
Active
Koordinatenmesstechnik
Lasertracker*
0,5 m
1) In den CMC sind die erweiterten Messu
Bügelmessschrauben* 0 mm
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GMC-I Service
Active
- Gleichspannung
Messgeräte > 0,22 V
> 2,2 V
> 11 V
> 22 V
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DIN EN ISO 5667-1 (A 4)
DIN 38402-A 11
DIN 38402-A 12
DIN 38402-A 13
DIN EN ISO 5667-6 (A 15)
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GPR Gesundheits- und Pflegezentrum Rüsselsheim gemeinnützige GmbH Institut für Laboratoriumsmedizin
Active
Erythrozytenzahl
Hämatokrit
Leucozytendifferenzierung
Leucozytenzahl
MCV
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Erythrozytenzahl
Hämatokrit
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MCV
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Radiated emissions (CISPR 32)
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GRAVICAL
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Innen- und Tiefenmaße
Konventioneller
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
+ 1 more
GRUPO ANTOLIN-INGENIERIA
Active
ISO 3795
UNE-EN ISO 105
UNE-EN ISO 13934-1
UNE-EN 12127
UNE-EN ISO 6507-1
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GTM Testing and Metrology
Active
Vickers hardness test (ISO 6507)
Kraft
Kraftaufnehmer und
Sound power — survey method (ISO 3746)
0,2 MN
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9,8 L ≤ V ≤ 10,2 L (25 L/h ≤ Q ≤ 500 L/h
98 L ≤ V ≤ 104 L (250 L/h ≤ Q ≤ 5000 L/h
970 L ≤ V ≤ 1005 L (2500 L/h ≤ Q ≤ 20000
1305 L ≤ V ≤ 1350 L (5000 L/h ≤ Q ≤ 8000
2660 L ≤ V ≤ 2700 L (5000 L/h ≤ Q ≤ 1000
DIN 30655-1
DIN 30655-2
DIN 3590-1
DIN 3590-2
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Androstendion
CA 125
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Azoospermie (AZF-Mikrodeletionen)
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(ATXN1); Typ 2 (ATXN2); Typ 3
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Gerico Lab Srl
Active
ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
Gerinnungszentrum Rhein-Ruhr
Active
Thrombozytenaggregation
Epinephrin-Ristocetin) nach
Verschlusszeitbestimmung
Kollagen / ADP, PFA-Kollagen
Epinephrin, PFA-P2Y)
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Gesellschaft für Materialforschung und Prüfungsanstalt für das Bauwesen Leipzig mbH - MFPA Leipzig
Active
ISO 1920-4
DIN EN 480-11
DIN EN 12350-1
DIN EN 12350-3
DIN EN 12350-6
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Aktivator ADP / Epinephrin
Thrombozytenfunktionstest
Basophile Leukozyten, absolut
Basophile Leukozyten
Eosinophile Leukozyten
+ 3 more
ISO 354
BS EN ISO 717-2:2020
ISO 7171
UNE-EN ISO 3382-2
BS EN ISO 10140-3:2021
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Gigahertz Optik
Active
spektrale
Mikrofonempfindlichkeit
Photodioden
1 µA/W
Bestrahlungsstärke
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Glasgow City Council
Active
(HSG 248) – 2021
staining based on HSG 248
F2011 (BS 696:Part 2:1989)
F0131 (BS 1741:10-1:1989) using
F0008 (BS 696:Part 2:1989) using
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GCS
Active
DIN EN 15136
DIN EN 137
Clause 6.24, EN 13274-5:2001
Clause 7.4.1.1, EN 13274-3:2001
Clause 7.4.1.2, EN 13274-3:2001
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