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 651–675 of 906 labs

TetraTec Instruments

Active
DAkkS D-K-17589-01-01 Steinenbronn, DE
Railway brakes — disc brake pads (UIC 54 Volumendurchfluss bzw. 0,01 m Railway pantographs — requirements for m 39 mL/h + 3 more
View Profile

Thermo Electron LED

Active
DAkkS D-K-17616-01-01 Langenselbold, DE
- Gleichspannung Messgeräte 0,001 V bis 0,33 V bis 3,3 V bis 330 V bis + 3 more
View Profile

Thüringer Landesamt für Verbraucherschutz Abteilung Mess- und Eichwesen, Beschussamt

Active
DAkkS D-K-18223-01-02 Ilmenau, DE
Masse oder Konventioneller Wägewert/ Massenormal *) > 1 mg + 3 more
View Profile

Toni Technik Baustoffprüfsysteme GmbH Service Prüftechnik Kalibrierlaboratorium

Active
DAkkS D-K-17246-01-00 Berlin, DE
Railway brake — magnetic track brakes (U Kraft (WPM) Länge (WPM) a) nur Vor-Ort-Kalibrierungen Vickers hardness test (ISO 6507) + 3 more
View Profile

Trescal

Active
DAkkS D-K-15015-01-01 Darmstadt, DE
- Gleichspannung / Messgeräte 10 V; 100 V; 1000 V > 100 mV > 0,22 V + 3 more
View Profile

TÜV NORD CERT

Active
DAkkS D-PL-12007-02-05 Essen, DE
IEC 61000-4-39 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 VDE 0847-4-4 + 3 more
View Profile

TÜV NORD Mobilität

Active
DAkkS D-K-11109-01-02 Essen, DE
positiven Überdruck positiver Überdruck - Gleichstromstärke Kraft Schließ- und + 3 more
View Profile

TÜV NORD Mobilität GmbH & Co. KG IFM - Institut für Fahrzeugtechnik und Mobilität

Active
DAkkS D-PL-11109-01-06 Essen, DE
ISO 26262-2 ISO 26262-3: ISO 26262-4 ISO 26262-5 ISO 26262-6 + 3 more
View Profile

TÜV NORD Systems GmbH & Co. KG Prüfstelle für Kälte-, Klima- und Lüftungstechnik

Active
DAkkS D-PL-11074-05-00 Essen, DE
DIN EN 12102-1 DIN EN 12237 DIN EN 13053 DIN EN 13180
View Profile

TÜV NORD Systems GmbH & Co. KG Prüfstelle für Lufthygiene Prüfstelle für Kälte-, Klima und Wärmetechnik

Active
DAkkS D-PL-11074-07-01 Essen, DE
DIN EN 10306 DIN EN 1048 DIN EN 1216 DIN EN 14511-3 DIN EN 14825 + 3 more
View Profile

TÜV NORD Umweltschutz

Active
DAkkS D-PL-14334-01-00 Hamburg, DE
DIN ISO 16000-3 DIN ISO 16000-6 DIN ISO 16000-13 DIN ISO 16000-18 DIN ISO 16000-20 + 3 more
View Profile

TÜV Rheinland Energy & Environment GmbH Messstelle für Immissionsschutz (Environmental Protection)

Active
DAkkS D-PL-11120-02-01 Köln, DE
DIN CEN/TS 17021 (DIN SPEC 33976) DIN EN ISO 3745 DIN EN 12102-1 DIN EN 12102-2 DIN 45635-1 + 3 more
View Profile

TÜV Rheinland Energy & Environment GmbH Test Centre for Energy Appliances

Active
DAkkS D-PL-11120-04-00 Köln, DE
DIN EN 12897 DIN EN 15332 DIN SPEC 1101 DIN EN 303-5 DIN EN 13126-19 + 3 more
View Profile

TÜV Rheinland Industrie Service GmbH Prüflaboratorium Safety & Security for Automation & Grid

Active
DAkkS D-PL-11052-01-03 Köln, DE
IEC 60068-2-1 IEC 60068-2-2 IEC 60068-2-6 IEC 60068-2-14 DIN EN 60068-2-14 + 3 more
View Profile

TÜV Rheinland Industrie Service GmbH Prüflaboratorium für Materialprüfung

Active
DAkkS D-PL-11052-03-01 Halle/Saale, DE
DIN EN 50178: 1998 DIN EN ISO 179-1 ISO 21527-1 ISO 21527-2 DIN EN ISO 527-3 + 3 more
View Profile

TÜV Rheinland Kraftfahrt

Active
DAkkS D-K-11165-01-02 Köln, DE
motoren Gaskonzentration Kohlenstoffmonoxid CO Kohlenstoffdioxid Kohlenstoffdioxid CO2 + 3 more
View Profile

TÜV Rheinland Kraftfahrt GmbH Lichttechnisches Labor

Active
DAkkS D-PL-11165-04-03 Berlin, DE
IEC 60068-2-1 IEC 60068-2-2 IEC 60068-2-14 DIN EN 60068-2-14 IEC 60068-2-30 + 3 more
View Profile

TÜV Rheinland LGA Products

Active
DAkkS D-PL-14169-03-03 Nürnberg, DE
DIN EN 71-10 DIN EN 62321-2*VDE 0042-1-2 DIN EN 1264-5 DIN EN 13647 DIN EN 16889 + 3 more
View Profile

TÜV SÜD Auto Service

Active
DAkkS D-K-11254-02-02 Filderstadt, DE
Railway wheelset design forces (UIC 519) Rollenbremsprüfstände Kraft Prüfsystem Prüfgeräte (SEP) + 3 more
View Profile

TÜV SÜD Industrie Service

Active
DAkkS D-PL-14153-02-01 München, DE
DIN EN ISO 4136 DIN EN ISO 5178 DIN EN ISO 6892-2 DIN EN ISO 14273 DIN EN ISO 5173 + 3 more
View Profile

TÜV SÜD Industrie Service GmbH Abteilung Chemische Analytik

Active
DAkkS D-PL-14153-06-06 München, DE
DIN 13094-1 DIN 53160 DIN EN ISO 7971-3 DIN EN 1264-5 DIN EN 61646 + 3 more
View Profile

TÜV SÜD Industrie Service GmbH Prüflabor Technische Ausrüstung der Abteilungen Kälte- und Klimatechnik sowie Feuerungs- und Wärmetechnik

Active
DAkkS D-PL-14153-04-00 München, DE
DIN 18032-7 DIN EN 1328 DIN EN 61378-2 DIN EN ISO 16810 DIN EN 1048 + 3 more
View Profile

TÜV SÜD Product Service

Active
DAkkS D-PL-11321-01-02 Frankfurt/Main, DE
DIN EN 50178: 1998 IEC 62040-1 VDE 0558-510 DIN VDE 0620-1 DIN VDE 0620-2-1 + 3 more
View Profile

TÜV SÜD Product Service

Active
DAkkS D-PL-11321-09-01 Garching, DE
IEC 60335-1: 2010 VDE 0700-1 DIN EN 60335-2-2 VDE 0700-2 IEC 60335-2-2 + 3 more
View Profile

TÜV SÜD Product Service

Active
DAkkS D-PL-11321-10-00 Hamburg, DE
DIN EN IEC 61851 DIN EN ISO 6185-3 DIN EN 61854 DIN EN 16083 DIN EN 16051-1 + 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