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
🇩🇪
DIN EN ISO 3746
🇬🇧
BS EN ISO 3746
🇫🇷
NF EN ISO 3746
🇮🇹
UNI EN ISO 3746
🇪🇸
UNE EN ISO 3746
🇳🇱
NEN EN ISO 3746
🇩🇪
DIN EN ISO 9614-1
🇬🇧
BS EN ISO 9614-1
🇫🇷
NF EN ISO 9614-1
🇮🇹
UNI EN ISO 9614-1
🇪🇸
UNE EN ISO 9614-1
🇳🇱
NEN EN ISO 9614-1
1,670
Accredited labs
18
Countries
Showing 76–100 of 1,670 labs
AQRAT
Active
Messschieber für 0 mm
Außen-, Innen- und > 500 mm
> 1000 mm
Tiefenmessschieber * 0 mm
Sondermessschieber 0 mm
+ 3 more
AQUANALYSE Laboratoire
Active
NF T 90-412
DIN EN ISO 7899-1
DIN EN ISO 10304-1
DIN EN 12880
ISO 5815-1
+ 3 more
ARCO
Active
BS EN ISO 20344::2011 Clause 5.1
ASTM D 1388
BS EN ISO 13997:1999
ISO 11611
DIN EN ISO 13997
+ 3 more
ARESSE ENGINEERING
Active
IEC 61400-11:2012/ AMD:2018
IEC 61400-12-1
IEC 61400-12-3
IEC 61400-13
IEC 61400-12-5
AS International Corporation
Active
ISO 5983-1:2005/Cor.1:2008, ISO20483:201
07L.1.07 based on ISO 6865:2001
ISO 712
07L.1.02 based on ISO 6496:1999,
ISO 12966-2
+ 3 more
EURAMET cg-18
CEM Ed
CEM GUIA
CEM TH-001
CEM TH-007
+ 3 more
DIN EN 13864
DIN EN 14808
DIN EN 12235
ISO 2549
ISO 4919
+ 3 more
AIJU
Active
UNE-EN 71-1
ISO 8124-1
ISO 8124-2
ASTM F963-17
(NM_001718: c.1-c.500)
+ 3 more
AITEX
Active
DIN EN ISO 11612
DIN EN ISO 3175-2
ISO 17493
DIN EN ISO 17227
DIN EN ISO 6330
+ 3 more
ITC
Active
UNE-EN ISO 10545-2
UNE-EN ISO 10545-3
ASTM C373
UNE-EN ISO 10545-4
UNE-EN ISO 10545-5
+ 3 more
INESCOP
Active
DIN EN ISO 20344
DIN EN 13634
BS EN ISO 20344::2011 Clause 5.1
DIN EN ISO 22568-1
ISO 22568-1: 2019 Clause 5.2.1
+ 3 more
0 mV ≤ U < 200 mV 0,2 V ≤ U < 2 V 2 V ≤
1 mV ≤ U < 220 mV 0,22 V ≤ U < 2,2 V 2,2
0 mV ≤ U ≤ 100 mV 0,1 V < U ≤ 1 V 1 V <
0 μA ≤ I < 200 μA 0,2 mA ≤ I < 2 mA 2 mA
0 μA ≤ I < 220 μA 0,22 mA ≤ I < 2,2 mA 2
+ 3 more
UNE-EN 772-11
UNE 136029
DIN 4772:1979
DIN EN 16510-2-4
DIN EN 17539
+ 3 more
UNE 81752
UNE 81550
UNE 81599
UNE 81587
UNE 81586
ASPECT Service Environnement
Active
NF-T 90-029
ISO 5815-1
NF T 90-043
NF-T 90-101
NF T90-004
+ 3 more
IEC 62471-7
IEC 62471: 2006
UNE-EN 13032-1
DIN EN 62471: 2009
UNE-EN 13032-4
+ 3 more
ISO 5667-5
DIN EN 12457-2
ISO 18787
DIN EN ISO 6888-1
UNI 10802
+ 3 more
IEC 15408-1
IEC 18045
IEC 18367
IEC 20543
IEC 20004
AUDIOLID, S.L.(Unipersonal)
Active
UNE-EN ISO 140-5
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
UNE-EN ISO 140-7
UNE-EN ISO 3382-2
+ 2 more
AUDIOTEC INGENIERÍA ACÚSTICA
Active
UNE-EN ISO 10140-2
UNE-EN ISO 10140-3
UNE-EN ISO 10140-1
UNE-EN ISO 354
UNE-EN 1793-1
+ 3 more
AVEYRON LABO
Active
DIN EN ISO 14403-2
NF V 04-407
NF T 90-412
DIN EN ISO 7899-1
DIN EN ISO 10304-1
+ 3 more
AWE
Active
(HSG 248) – 2021
LQP007 based on HSG 248
LQP003 based on HSG 248
(PCM) based on HSG 248
the guidance of GPG 14
PERSONAL DOSE EQUIVALENT:
RESPONSE:
No matching labs found.