ISO 3382-2:2015

Room Acoustics Reverberation Time Measurement

This test method specifies procedures for measuring reverberation time and other room acoustic parameters in ordinary rooms such as offices, classrooms, lecture halls, and residential spaces. Reverberation time (T30 or T20) is a fundamental acoustic property that affects speech intelligibility, sound quality, and acoustic comfort. It is essential for designing spaces with appropriate acoustic characteristics, verifying construction specifications, and ensuring compliance with building standards. Architects, acousticians, and building professionals rely on these measurements to evaluate and optimize room acoustic performance. ISO 17025 accreditation guarantees accurate measurements following standardized methodology.

What it measures

  • Reverberation time (T30, T20, EDT)
  • Frequency-dependent acoustic absorption
  • Early decay time and room acoustic parameters
  • Clarity index (C50) and definition (D50)
  • Speech transmission index (STI) indicators
🇩🇪 DIN EN ISO 3382-1 🇬🇧 BS EN ISO 3382-1 🇫🇷 NF EN ISO 3382-1 🇮🇹 UNI EN ISO 3382-1 🇪🇸 UNE EN ISO 3382-1 🇳🇱 NEN EN ISO 3382-1 🇩🇪 DIN EN 60268-16 🇬🇧 BS EN 60268-16 🇫🇷 NF EN 60268-16 🇮🇹 UNI EN 60268-16 🇪🇸 UNE EN 60268-16 🇳🇱 NEN EN 60268-16
1,868 Accredited labs
20 Countries

Showing 276–300 of 906 labs

DAkkS D-ML-17347-01-00 Ulm, DE
Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Lymphozyten Leukozyten + 3 more
View Profile
DAkkS D-ML-18337-01-00 München, DE
Bacillus anthracis Antikörper Direkter Coombstest polyvalent Brucella spp. IgG, IgM Antikörper Francisella tularensis-Antikörper polyvalent, IgG, IgM + 3 more
View Profile
DAkkS D-K-18657-01-01 Emmerthal, DE
Kurzschlussstrom 0,5 mA 0,1 V Füllfaktor Solarzellen* 25 % 0,01 mW THD U 0,1 % + 3 more
View Profile
DAkkS D-PL-19759-01-05 Duisburg, DE
Erythrozyten im 1,5.10121-1 DIN EN ISO 10121-2 DIN EN ISO 16890-1 DIN EN ISO 16890-2 DIN EN ISO 16890-3 + 3 more
View Profile
DAkkS D-PL-19125-01-00 Bonn, DE
DIN EN IEC 60255-1 VDE 0435-300 DIN EN 60255-151 VDE 0435-3151 IEC 60255-151 + 3 more
View Profile
DAkkS D-PL-11307-01-00 Hamburg, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
View Profile
DAkkS D-PL-14184-01-02 Fürth, DE
IEC 62321-2 DIN EN 61340-4-4 DIN EN 12472 DIN EN 16711-1 DIN EN 1264-5 + 3 more
View Profile
DAkkS D-PL-12085-01-01 Kaufbeuren, DE
IEC 61000-3-2: 2014 IEC 61000-3-3 IEC 61000-3-11: 2017 IEC 61000-3-12: 2011 IEC 61000-4-2: 2008 + 3 more
View Profile
DAkkS D-K-15061-01-00 Nettetal, DE
Härte* 20 HRA Härtevergleichsplatten 20 HRB 20 HRC 40 HRD + 3 more
View Profile
DAkkS D-K-21494-01-00 Weiden i. d. OPf., DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen Innen- und Tiefenmaße Konventioneller + 2 more
View Profile
DAkkS D-K-18423-01-00 Aschaffenburg, DE
Ebenheitsabweichung verkörperungen z.B. platten nach DIN 876:1984 Geradheitsabweichung ebener Flächen, z.B. + 3 more
View Profile

Johs. Boss

Active
DAkkS D-K-21417-01-00 Albstadt, DE
(ein- und mehrgängige winde mit geradlinigen unsymmetrischem Profil 0,5 mm bis 6 mm) Außengewinde Nenndurchmesser + 3 more
View Profile
DAkkS D-ML-13135-01-00 Würzburg, DE
Obligat anaerobe Bakterien mikroaerophile Bakterien ESBL-Bildner (multiresistente gramnegative säurefeste Stäbchen + 3 more
View Profile
DAkkS D-ML-13135-03-01 Würzburg, DE
CD45 Percp+CD16+56+CD3 CD4 CD45 Percp+CD4+CD8 Adalimumab Anti-Adalimumab Antikörper + 3 more
View Profile

Jurjanz

Active
DAkkS D-K-15085-01-01 Schkeuditz, DE
Parallelendmaße aus 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße aus > 100 mm Messschieber für 1350 mm + 3 more
View Profile
DAkkS D-PL-12119-01-00 Wuppertal, DE
DIN EN IEC 60947-5 IEC 60947-5-1 IEC 60947-5-2 DIN EN 60947-5 IEC 60947-5-3 + 3 more
View Profile
DAkkS D-K-17233-01-00 Hochdorf-Assenheim, DE
Härteprüfmaschinen nach 100 HBW Brinell- und 226 HBW messeinrichtungen von Härteprüfmaschinen + 3 more
View Profile
DAkkS D-ML-13391-01-00 Frankfurt am Main, DE
basophile, eosinophile, Granulozyten Differenzialblutbild Erythrozyten Erythrozytenverteilungsbreite (RDW) + 3 more
View Profile
DAkkS D-PL-22093-01-00 Ratingen, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-4: 2012 VDE 0847-4-4 IEC 61000-4-5: 2005 + 3 more
View Profile
DAkkS D-PL-12091-01-01 Forchtenberg, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
View Profile
DAkkS D-K-21779-01-00 Berlin, DE
Gleichspannung 100 µV Messgeräte 220 mV > 2,2 V > 11 V > 22 V + 3 more
View Profile
DAkkS D-K-20795-01-01 Waldaschaff, DE
Railway brake — magnetic track brakes (U − Ebenheit − Geradheit − Winkelnormale auch als Vor-Ort-Kalibrierung + 3 more
View Profile
DAkkS D-PL-11068-09-00 Karlsruhe, DE
DIN EN 60034-15 VDE 0530-15 IEC 60034-15 DIN EN 60044-7 VDE 0414-44-7 + 3 more
View Profile
DAkkS D-K-11068-01-00 Eggenstein-Leopoldshafen, DE
Luftkerma/-leistung Dosis Dosisleistung
View Profile

Kern & Sohn

Active
DAkkS D-K-19408-01-01 Balingen, DE
nichtselbsttätige − Waagen Festkörpervolumen Wägewert/ Masse oder + 3 more
View Profile

No matching labs found.

Industries

Architectural and acoustic design Building construction and commissioning Educational facilities management Broadcasting and media production Hospitality and entertainment venues

Related Standards

  • ISO 3382-1 Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces
  • EN 60268-16 Sound system equipment - Objective rating of speech intelligibility by speech transmission index
  • ISO 140-4 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 4: Field measurements of airborne sound insulation between rooms

Other Test Methods

0 labs selected
Compare