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 326–350 of 1,868 labs

CSTB - BV

Active
COFRAC 1-0300 Marne La Vallee Cedex 2, FR
DIN EN 947 DIN CEN TS 15119-2 NF P 20-501 DIN EN 1026 BS EN 14351-1:2006+A2:2016 + 3 more
View Profile

CSTB - Grenoble

Active
COFRAC 1-1542 Saint Martin D'Heres, FR
DIN EN 1279-2 DIN EN 1279-5 DIN EN 12094-10 EN 1279-6 – Méthode de référence DIN EN 14449 + 3 more
View Profile

CTC

Active
COFRAC 1-0130 Lyon Cedex 07, FR
DIN EN 27888 DIN EN ISO 10523 NF X 31-615 (Uniquement prélèvements NF EN ISO 7887 Méthode D DIN EN ISO 9963-1 + 3 more
View Profile

CTK-Poliklinik

Active
DAkkS D-ML-13325-01-00 Cottbus, DE
Oligosaccharide Chromatographie (Gaschromatograpie Cannabinoide (THC-COOH) Amphetamine Opiate + 3 more
View Profile

Calibration, Maintenance and Repair

Active
UKAS 0654 Norwich, GB
DC VOLTAGE DC Resistance DC CURRENT AC Current Generation Generation (continued) + 3 more
View Profile

Cambridge Acoustic Laboratory

Active
UKAS 21871 Pampisford, GB
BS EN ISO 10140-2:2021 ISO 7171
View Profile

Campbell Associates

Active
UKAS 0789 Great Dunmow, GB
Sound Calibrators FREQUENCY Microphones based: ½” & ¼” microphones @ 250 Hz + 3 more
View Profile

Campden BRI (Chipping Campden)

Active
UKAS 1079 Gloucestershire, GB
BS ISO 488:2008, 2446:2008 and on BS 4401:Part 3:1970(1986) BS 696-2:1989 (superseded and BS ISO 6731:2010 ISO BS EN 3727-1:2002 + 3 more
View Profile

Cardiff and Vale University Health Board, operating as WEQAS

Active
UKAS 4301 Llanishen, GB
Electrolytes in blood serum: Enzymes in blood serum: (Chlamydia pneumoniae, Mycoplasma urine: Hormones in blood serum: + 1 more
View Profile

Carl Zeiss

Active
DAkkS D-PL-12125-01-01 Oberkochen, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-1-1 IEC 60601-1-1 IEC 80601-2-77 + 3 more
View Profile

Carl Zeiss IQS Deutschland

Active
DAkkS D-K-21703-01-00 Oberkochen, DE
Carl Zeiss Industrielle ≤ 3818 mm Oberkochen, D 1) In den CMC sind die erweiterten Messu Carl Zeiss Industrielle ≤ 20 m Auswertesoftware Messvolumen mit + 3 more
View Profile

Carl Zeiss Industrielle Messtechnik

Active
DAkkS D-K-15007-01-01 Oberkochen, DE
Parallelendmaße 50 mm DIN EN ISO 3650:1999 Thermischer Ausdeh- Maximale Dimension Bandbreite Höhe: 80 mm + 3 more
View Profile

Carl Zeiss Jena

Active
DAkkS D-PL-12037-01-02 Jena, DE
DIN EN 61010-1 VDE 0411-1 IEC 61010-1 : 2010 DIN EN 60825-1 VDE 0837 + 3 more
View Profile

Carl Zeiss Jena GmbH Kompetenzzentrum Qualität/Kalibrierlabor

Active
DAkkS D-K-12037-01-01 Jena, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße * 40 mm Parallelendmaße * ≥ 100 mm Strichmaßstäbe 0 mm + 3 more
View Profile

Carymar Construction Services

Active
UKAS 27202 Paisley, GB
(HSG 264, 2012)
View Profile

Casa Environmental Services

Active
UKAS 7914 Willsbridge, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
View Profile

Cavendish Laboratories

Active
UKAS 1643 Chelmsford, GB
(cdt), Deletion an Pos 117 (HSG 248) – 2021 (PCM) based on HSG 248 BS 6068-4.12:1998 (withdrawn)
View Profile

CeGaT

Active
DAkkS D-ML-13206-01-01 Tübingen, DE
angeborener Chromosomensatz (Imbalancen im Genom, (Duplikationen/Del SNRPN-Region 15q11-13 UPD15 (UBE3A) SMN1; Spinale Muskelatrophie + 3 more
View Profile

Cenata

Active
DAkkS D-ML-21205-01-01 Tübingen, DE
Pränatales Screening auf Chromosomenstörungen (Trisomie 21, Trisomie 18, Trisomie 13, X0, XXX, XXY, XYY, XXYY, 22q11 (DiGe
View Profile

Centre de Ressources des Industries du Bois CERIBOIS

Active
COFRAC 1-1970 Chateauneuf Sur Isere, FR
DIN EN 12207 DIN EN 12208 DIN EN 1026 DIN EN 12210 BS EN 14351-1:2006+A2:2016 + 3 more
View Profile

Centro Polimeri Italia Srl

Active
ACCREDIA 01076 Reggio Emilia, IT
ISO 4650 DIN EN 13180 BS ISO 4650:2012 ISO 180
View Profile

Centro Qualità Carta - Unità operativa di LUCENSE SCaRL

Active
ACCREDIA 00074 Lucca, IT
BS EN 13286-48:2005 DIN EN ISO 12625-6 DIN EN ISO 11664-5 DIN EN ISO 7263-1 DIN EN ISO 11646 + 3 more
View Profile

Centro di Ricerche Ambientali - ICS Maugeri SpA SB

Active
ACCREDIA 01957 Vigonza, IT
ISO 5667-5 DIN EN 62631-1 DIN EN ISO 19458 UNI 9432 ISO 11731
View Profile

Chamois Metrology

Active
UKAS 0822 Southam, GB
Calibration of pressure Gas pressure (gauge) Gas Pressure (Differential) common mode pressure of 3.5 Hydraulic pressure (gauge) + 3 more
View Profile

Charité - Universitätsmedizin Berlin Institut für Pathologie

Active
DAkkS D-ML-13008-09-01 Berlin, DE
Whole genome sequencing (WGS: SNV, CNV/SV)
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