ISO 3746:2010

Sound Power Level — Survey Method

This test determines sound power levels of noise sources using an enveloping measurement surface and sound pressure level measurements. It is a survey-grade method suitable for field measurements of machinery, equipment, and industrial sources in moderately reflective environments. The method is widely used for noise compliance verification, product development, and environmental impact assessments. Accredited testing ensures consistent, defensible results for regulatory compliance and product labeling. This method bridges the gap between laboratory-grade precision and practical field measurements.

What it measures

  • Sound power level (Lw) in decibels
  • A-weighted and frequency-weighted sound power
  • Directional sound power distribution
  • Acoustic performance of noise sources
🇩🇪 DIN EN ISO 3744 🇬🇧 BS EN ISO 3744 🇫🇷 NF EN ISO 3744 🇮🇹 UNI EN ISO 3744 🇪🇸 UNE EN ISO 3744 🇳🇱 NEN EN ISO 3744 🇩🇪 DIN EN ISO 3745 🇬🇧 BS EN ISO 3745 🇫🇷 NF EN ISO 3745 🇮🇹 UNI EN ISO 3745 🇪🇸 UNE EN ISO 3745 🇳🇱 NEN EN ISO 3745
1,868 Accredited labs
20 Countries

Showing 1,651–1,675 of 1,868 labs

DAkkS D-ML-18383-06-00 Essen, DE
membranständiger Antigene CD4, CD8, CD14, CD16, CD19, CD45, CD56) Tuberkulose ELISpot CMV ELISpot Lymphozytentransformationstest + 3 more
View Profile
DAkkS D-ML-18383-06-01 Essen, DE
Membranständige Antigene CD4, CD8, CD14, CD16/56, CD45) Freisetzung von IFN-γ nach tuberculosis -Komplex (TB Stimulation mit Antigenen + 3 more
View Profile
DAkkS D-ML-18383-08-00 Essen, DE
Candida dubliensis -Ag Cardiolipin AK Clostridioides difficile AG Cryptococcus neoformans Echinococcus-Ak + 3 more
View Profile
DAkkS D-ML-18383-09-00 Essen, DE
Glykosyliertes Hämoglobin Basophile Granulozyten Eosinophile Granulozyten Erythräzyten Leukozyten + 3 more
View Profile
DAkkS D-ML-18383-07-01 Essen, DE
Gendosisanalyse Gendosisanalyse (UBE3A, SHOX Genet. Veränderung bei Tumorerkrankung: Analyse auf Verlust eines Chromosoms 3 + 3 more
View Profile
DAkkS D-ML-18383-02-00 Essen, DE
Glykosyliertes Hämoglobin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Leukozyten + 3 more
View Profile
DAkkS D-ML-13102-08-01 Frankfurt, DE
Thyreoidea stimulierendes Thyreotropes Hormon (TSH) 17-Hydroxyprogesteron Immunreaktives Trypsin Pancreatitis-assoziiertes + 3 more
View Profile
DAkkS D-ML-13102-01-00 Frankfurt am Main, DE
Antistreptolysin (ASL) Antistaphylosin (AST) Candida spp.-Antikörper Echinokokken-Antikörper Kryptokokken-Antigen + 3 more
View Profile
DAkkS D-ML-13102-03-00 Frankfurt am Main, DE
Adenovirus-Antigen Astrovirus Antigen Chikungunya-Virus-Antikörper Immunglobulin M (IgM) Coxsackie A9, A24, B, B1, B5, B6 Virus-A + 3 more
View Profile
DAkkS D-ML-13102-04-00 Frankfurt am Main, DE
D-Dimere Freies Protein-S Antigen Protein S Antigen frei vWV:Ag Hemmkörper + 3 more
View Profile
DAkkS D-ML-13102-02-00 Frankfurt am Main, DE
Basophile Basophile absolut Eosinophile Eosinophile absolut Erythrozyten + 3 more
View Profile
DAkkS D-ML-13102-06-00 Frankfurt am Main, DE
Charakterisierung von akuten Akuten Leukämien B-Zellzahl (Immunstatus manuelles Differentialblutbild Zellzahlbestimmung + 3 more
View Profile
DAkkS D-ML-13134-02-01 Freiburg, DE
Cardiolipin-Antikörper Leptospiren-Antikörper Shigellen (O-Antigene) Treponema pallidum-Antikörper Borrelien IgG + IgM + 3 more
View Profile
DAkkS D-ML-13134-03-01 Freiburg, DE
anti-CMV IgG anti-CMV IgM CMV IgG Avidität Chikungunya Virus IgG Chikungunya Virus IgM + 3 more
View Profile
DAkkS D-ML-13134-05-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
View Profile
DAkkS D-ML-13134-10-01 Freiburg, DE
NGS-Panel-Analyse (SNVs, Indels CNVs), Gene: WDR73, WNT4, WNT5A, XRCC4, YY1, ZMPSTE24 PYCR1, RNF213, ROBO4, SETD5, SLC2A10, SL GPC3, HERC1, HIST1H1E, NFIX, OFD1, RNF13 + 3 more
View Profile
DAkkS D-ML-13134-06-01 Freiburg, DE
RPL27, RPL3, RPL31, RPL34, RPL35, RPL35A Diamond-Blackfan-Anämie ; DBA NOP10, PARN, RPA1, RTEL1, SAMD9, SAMD9L, Dyskeratosis congenita; DC Panel NOP10, PARN, POT1, RPA1, RTEL1, SAMD9, S + 3 more
View Profile
DAkkS D-ML-13134-09-00 Freiburg, DE
Urinstatus Leukozyten Neutrophile Granulozyten Eosinophyle Granulozyten Basophile Granulozyten + 3 more
View Profile
DAkkS D-ML-13134-07-00 Freiburg, DE
Differenzierung peripheres Erstellung eines Differentialblutbilds Differenzierung Knochenmark Pappenheim-Färbung Peroxidase-Reaktion + 3 more
View Profile
DAkkS D-ML-13134-12-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
View Profile
DAkkS D-ML-13304-04-01 Marburg, DE
Anaerobier-Resistenz Bakterien-Resistenz Hefen-Resistenz Carbapenemasenachweis Cryptosporidien, Giardia + 3 more
View Profile
DAkkS D-ML-13304-03-00 Gießen, DE
Thrombozyten Zellzählung und -differenzierung Calcium, ionisiert Natriumchlorid Glukose + 3 more
View Profile
DAkkS D-ML-13304-07-01 Gießen, DE
DPYD-Genotypisierung vor 5 FU Therapie, SNV Polyposissyndrome (APC, BMPR1A, MUTYH, N (Custom made by TWIST), SNV Hereditärer Darmkrebs inklusive + 3 more
View Profile
DAkkS D-ML-13304-01-00 Gießen, DE
Thrombozytenaggregation Arachidonsäure Kollagen/Epinephrin Ristocetin Erythrozyten + 3 more
View Profile
DAkkS D-ML-13304-09-01 Marburg, DE
9-OH-Risperidon/Paliperidon Aripiprazol Citalopram Clozapin, Norclozapin Cyclosporin (CSA) + 3 more
View Profile

No matching labs found.

Industries

Industrial machinery and equipment manufacturing Environmental noise consulting Construction and power tool equipment HVAC and ventilation systems Occupational health and safety

Related Standards

  • ISO 3744 Determination of sound power levels of noise sources using sound pressure — Precision method in anechoic and hemi-anechoic rooms
  • ISO 3745 Determination of sound power levels of noise sources using sound pressure — Precision grade method for anechoic rooms and free fields over a reflecting plane
  • ISO 3747 Determination of sound power levels of noise sources using sound intensity — In-situ method using a reference sound source
  • ISO 9614-1 Determination of sound power levels of noise sources by sound intensity — Part 1: Measurement at discrete points

Other Test Methods

0 labs selected
Compare