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 551–575 of 1,868 labs

Eurofins Electrical & Electronic UK

Active
UKAS 0452 Bideford, GB
AC CURRENT AC VOLTAGE (continued) Measurement (continued) DC CURRENT Generation (continued) + 3 more
View Profile

Eurofins Electrical & Electronic UK

Active
UKAS 1574 York, GB
IEC 61000-6-1 IEC 61000-4-29: 2000 DIN EN 62233 IEC 61000-4-11: 2004 DIN EN 61000-4-12 + 3 more
View Profile

Eurofins Food Testing UK

Active
UKAS 2262 Ipswich, GB
ISO 6579-1 ISO 6888-1 ISO 16649-2 ISO 11290-1 1) AM/M/11-2 based on BS EN + 3 more
View Profile

Eurofins Food Testing UK

Active
UKAS 9659 Grimsby, GB
Method 15.2 based on BS EN ISO ISO 15213-2 Method 9.8 based on BS EN BS EN Method 5.11 based on BS EN ISO Method 4.3 based on BS EN ISO + 3 more
View Profile

Eurofins Food Testing UK

Active
UKAS 2622 Linlithgow Bridge, GB
ISO 6579-1 ISO 4832 EUMM 3.03 based on BS EN EUMM 3.07 based on BS EN ISO BS ISO 21528-2:2017 + 3 more
View Profile

Eurofins Food Testing UK

Active
UKAS 0342 Wolverhampton, GB
ISO 712 ISO 4833-1 on BS EN ISO 1736:2008 ISO 21528-2 BS ISO 4832:2006 + 3 more
View Profile

Eurofins Laborbetriebsgesellschaft Gelsenkirchen

Active
DAkkS D-ML-17481-01-01 Gelsenkirchen, DE
Thrombozytenfunktion Agomelatin Amisulprid (Psychopharmaka) Amitriptylin (TZA) Aripiprazol (Neuroleptika) + 3 more
View Profile

Eurofins MVZ Medizinisches Labor Gelsenkirchen

Active
DAkkS D-ML-17480-01-01 Gelsenkirchen, DE
Thrombozytenfunktion Agomelatin Amisulprid (Psychopharmaka) Amitriptylin (TZA) Aripiprazol (Neuroleptika) + 3 more
View Profile

Europäisches Testzentrum für Wohnungslüftungsgeräte (TZWL) e. V.

Active
DAkkS D-PL-19438-01-00 Schwerte, DE
DIN EN 13141-4 DIN EN 13141-6 DIN EN 13141-7 DIN EN 13141-8 DIN EN 13141-11 + 3 more
View Profile

Evangelisches Klinikum Niederrhein Laboratoriumsmedizin

Active
DAkkS D-ML-20007-01-00 Duisburg, DE
Glykohämoglobin A1C (HbA1c) Basophile Granulozyten Eosinophile Granulozyten Erythrozytenverteilungsbreite (RDW) + 3 more
View Profile

Evangelisches Krankenhaus Oberhausen GmbH Institut für Laboratoriumsmedizin und Klinische Mikrobiologie

Active
DAkkS D-ML-18340-01-00 Oberhausen, DE
Blutzellen Basophile Granulozyten Basophile Granulozyten, Eosinophile Gran Eosinophile Granulozyten, Erythrozyten, Basophile Leukozyten, absolut + 3 more
View Profile

Evolution Environmental

Active
UKAS 9661 Teston, GB
(HSG 264, 2012)
View Profile

F.S. Fehrer Automotive

Active
DAkkS D-PL-21199-01-01 Kitzingen, DE
DIN EN ISO 1798 DIN EN ISO 1856 Myopathie, Nemaline (TyP1, 3-10: DIN EN ISO 14125 DIN EN ISO 179-1 + 3 more
View Profile

FCBA - Bordeaux

Active
COFRAC 1-0201 Bordeaux, FR
DIN EN 947 ISO 24339 DIN CEN TS 15119-2 DIN EN ISO 3741 NF P 20-501 + 3 more
View Profile

FCBA - Champs sur Marne

Active
COFRAC 1-6839 Champs-Sur-Marne, FR
NF EN 716-1/-2 NF EN 12221-1/-2 NF EN 14988-1/-2 DIN 51130 DIN EN 12227 + 3 more
View Profile

FES GmbH Fahrzeug-Entwicklung Sachsen

Active
DAkkS D-PL-17354-01-00 Zwickau, DE
ISO 16750-3 DIN EN 60068-2-53 DIN EN 60068-2-64 ISO 20653 ISO 16750-4 + 3 more
View Profile

FGQ-Control GmbH Kalibrierdienst für mechanische, elektrische und physikalische Messgrößen

Active
DAkkS D-K-19502-01-01 Furtwangen, DE
Frequenz - Gleichspannung Spannungsquellen 5 µV 1 mV Messgeräte > 10 mV + 3 more
View Profile

FIBRECOUNT France

Active
COFRAC 1-6017 Marseille, FR
DIN 51750-3 NF X 43-269 – NF X 43-050 NF X43-050 (parties utiles de la DIN EN 15002
View Profile

FILK Freiberg Institute g

Active
DAkkS D-PL-17362-01-01 Freiberg, DE
DIN ISO 48-4 ISO 21527-1 ISO 21527-2 DIN EN ISO 527-3 rs2066844 + 3 more
View Profile

FIRA International

Active
UKAS 0174 Stevenage, GB
BS 7177 BS 5852 DIN EN 597-1 BS 6807:1986 DIN EN 597-2 + 3 more
View Profile

FIS Frankfurter Industrieservice Gesellschaft mit beschränkter Haftung Labor für Chemische Analytik, Mikrobiologie, Krankenhaushygiene, Gasanalytik

Active
DAkkS D-PL-14358-01-01 Frankfurt (Oder), DE
DIN EN ISO 5667-1 (A 4) DIN 38402-A 11 DIN 38402-A 12 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) + 3 more
View Profile

FLANDRES Analyses

Active
COFRAC 1-1185 Capelle-La-Grande, FR
NF T90-111 DIN EN ISO 17294-2 DIN EN ISO 14403-2 NF EN ISO 19340 DIN EN ISO 10304-1 + 3 more
View Profile

FLASHLAB - Site d'Illkirch

Active
COFRAC 1-5765 Illkirch-Graffenstaden, FR
NF X 43-269 NF X 43-050 NF X43-050 (parties utiles de
View Profile

FLASHLAB - Site de Longjumeau

Active
COFRAC 1-5952 Longjumeau, FR
DIN EN 13001-1 NF X 43-269 NF X43-050 (parties utiles de NF X 43-275 NF X 43-257 + 3 more
View Profile

FLASHLAB NORD

Active
COFRAC 1-6979 Lezennes, FR
NF X 43-050 NF X 43-050 (parties utiles NF X 43-269 - Annexe
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