Scope
ISO 3743-1
Sound power — reverberation field engineering method
ISO 3743-1 specifies the reverberation room method for determining sound power levels of noise sources, suitable for smaller sources or laboratory environments where sound pressure is measured in a reverberant acoustic field. The method is applicable across a wide frequency range and is commonly used for equipment testing, product compliance assessment, and environmental noise impact studies. This engineering-level method balances accuracy with practical testing constraints and is widely required for EU noise directive compliance and product CE marking. Accreditation demonstrates laboratory control of environmental conditions, proper instrumentation calibration, and competence in complex acoustic data analysis.
What it measures
- Sound power level (Lw) using sound pressure in reverberation room
- A-weighted and frequency-weighted sound power
- Octave band sound power levels (31.5 Hz to 8 kHz)
- Sound power uncertainty and test environment correction
- Directional sound power characteristics
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DIN EN ISO 3740
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BS EN ISO 3740
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NF EN ISO 3740
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UNI EN ISO 3740
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UNE EN ISO 3740
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NEN EN ISO 3740
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DIN EN ISO 3744
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BS EN ISO 3744
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NF EN ISO 3744
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UNI EN ISO 3744
🇪🇸
UNE EN ISO 3744
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NEN EN ISO 3744
1,670
Accredited labs
18
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Showing 626–650 of 834 labs
DIN EN 55016-2-1
VDE 0877-16-2-1
DIN EN 55016-2-2
VDE 0877-16-2-2
DIN EN 55016-2-3: 2020
+ 3 more
DIN EN ISO 17640
DIN EN ISO 13588
DIN EN ISO 20601
DIN EN ISO 16828
DIN EN ISO 10863
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Widerstands- -25 °C
Railway braking — urban guided transport
–25 °C
Railway vehicle body structural requirem
Thermoelementsensor -25 °C
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DIN EN 12102-2
DIN EN 1728
DIN EN 1729-1
DIN EN 1729-2
DIN 4547-1
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UL International Germany
Active
IEC 61851-1: 2010
IEC 61851-23
IEC 62109-1
IEC 62109-2
IEC 61010
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UNIMA Präzisionsmaschinen
Active
Messschieber für 0 mm
Außen-, Innen- und
Bügelmessschrauben 0 mm
Messuhren mit
Feinzeiger
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Achromatopsie (Panel) (ATF6, CNGA3, CNGB
Albinismus (OCA2)
Alport-Syndrom (Panel) (COL4A1, COL4A3,
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Arrhythmien (Panel) (ACTC1, ACTN2, BAG3,
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DIN EN 442-2
DIN EN 16430-1
DIN EN 16430-2
DIN EN 16430-3
DIN 4703-3
+ 3 more
Sound power — engineering method using a
Sound power — survey method (ISO 3746)
Sound power — in-situ using reference so
Sound intensity — scanning method (ISO 9
Sound intensity — scanning method part 2
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DIN EN ISO 4590
DIN EN ISO 9053-1
DIN EN ISO 12571
DIN EN ISO 12572
DIN EN ISO 15148
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Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) Institut für Humangenetik und Genommedizin
Active
Syndrom/Silver-Russell-Syndrom)
SMN1 (SMA)
FMR1-Gen (fraX, POF, FXTAS)
Charcot-Marie-Tooth-Erkrankung
Cardiolipin (CMT)
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Adrenalin
Dopamin
5-Hydroxyindolessigsäure
Homovanillinsäure
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Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) Zentrum für Humangenetik und Genommedizin
Active
(Long Read): SNV, CNV, Repeats
FMR1-Gen (fraX, POF, FXTAS)
Charcot-Marie-Tooth-Erkrankung
Cardiolipin (CMT)
GARS1, GDAP1, GJB1, HSPB1, IGHMBP2, LITA
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heparininduzierter Antikörper
Heparin induzierter Thrombozytopenie
Typ II (HIT II)
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Bannayan-Ruvalcaba-Riley-Syndrom
(institutseigene Erweiterung des
Illumina TruSight Cancer Panel):
PTEN, AKT1, PIK3CA, SEC23B
Syndrom (institutseigene
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Universitätsklinikum Bonn Institut für Klinische Chemie und Klinische Pharmakologie - Zentrallabor
Active
Amiodaron, Desethylamiodaron
HbA1c
Vitamin A, Vitamin E
Vitamin B1/B6
Vitamin B2
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angeborener Chromosomensatz
Nummerische Veränderungen
Chromosomen 13, 18, 21, X und
ldentifizierung kleinster
chromosomaler/numerischer
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Multiplate-Analyse (TRAP, ADP)
Thrombozytenaggregation
Born)
Organische Säuren (Profil)
Metanephrin, Normetanephrin
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Blutbild, Differentialblutbild
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Fragmentozyten
Knochenmarkzytologie
Liquor- und Ergusszytologie
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Cyclosporin A, Everolimus, Sirolimus, Ta
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anaerobe Bakterien, anspruchsvolle
Schnellwachsende aerobe
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(ATM (NM_000051), BRCA1
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ASPI, COL, RISTO, TRAP)
Steroide Profil
11-Deoxycortisol
11-Deoxycorticosteron
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