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 451–475 of 1,868 labs

E-T-A Elektrotechnische Apparate

Active
DAkkS D-PL-12144-01-01 Altdorf, DE
VDE 0468-2-1 VDE 0468-2-2 VDE 0468-2-6 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 + 3 more
View Profile

E. ZOLLER GmbH & Co. KG Einstell- und Messgeräte

Active
DAkkS D-K-18994-01-00 Pleidelsheim, DE
optische 0 mm Werkzeugeinstell- und / Messgeräte verwendete Abkürzungen:
View Profile

EAU D'AZUR - OBSERVATOIRE DU DEVELOPPEMENT DURABLE

Active
COFRAC 1-7055 Nice, FR
DIN EN ISO 17294-2 DIN EN ISO 7899-1 ISO 5815-1 NF T90-015-1 DIN EN ISO 10523 + 3 more
View Profile

ECORICERCHE SrL

Active
ACCREDIA 00160 Bassano del Grappa, IT
EPA 3535 DIN EN ISO 15587-1 NF EN ISO-15587-2 EPA 5030 EPA 6010 + 3 more
View Profile

ECOS DEL PISUERGA

Active
ENAC LE2175 Arroyo de la Encomienda, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-3 UNE-EN ISO 16283-2 UNE-EN ISO 3382-1 UNE-EN ISO 3382-2
View Profile

ECOSISTEM

Active
ACCREDIA 00611 Napoli, IT
DIN EN ISO 9308-2 EPA 5035 DIN EN 14789 EPA 5030 DIN EN 14790 + 3 more
View Profile

EDAG Engineering GmbH ATC Fulda

Active
DAkkS D-PL-11061-02-02 Petersberg, DE
DIN 40633-2 DIN 40633-3 DIN 53482 DIN 72551-100 DIN 72551-6 + 3 more
View Profile

EDISON NEXT ENVIRONMENT

Active
ACCREDIA 02194 Rivoli Cascine Vica, IT
DIN EN 14790 ISO 5667-5 DIN EN 14181 DIN EN ISO 16911-1 ISO 5667-11 + 3 more
View Profile

EDP Building Sciences a division of E.D.P. Health, Safety and Environment Consultants

Active
UKAS 2546 Coventry, GB
BS EN ISO 16283-1:2014+A1:2017BS EN ISO BS EN ISO 16283-2:2020 BS EN ISO 140-4:1998 ISO 1407 BS EN ISO 9972:2015 + 1 more
View Profile

EDP Health Safety and Environment Consultants

Active
UKAS 9982 Waterside Court, GB
and Appx. 3 of HSG 227 (2004)) in Appendix 5 of HSG 227 (2004) guides HSG 264 (2012) and (HSG 264, 2012)
View Profile

EFFICIENCE ET OPTIMISATION

Active
COFRAC 1-7175 Oullins-Pierre-Bénite, FR
NF ISO 21438-3 NF X 43-264 NF ISO 21438-1 NF X 43-259 NF ISO 21438-2 + 3 more
View Profile

EGIS INDUSTRIE ET PROCESS

Active
COFRAC 1-6388 Saint-Martin D'Heres, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
View Profile

EICHROM AMIANTE

Active
COFRAC 1-6491 Bruz, FR
NF X 43-269 - Annexe K NF X 43-050 (parties utiles NF X 46-032 NF X 43-269 – Annexe K NF X 43-050 + 1 more
View Profile

ELANOVA LAB

Active
COFRAC 1-0076 Vitry-Sur-Seine, FR
DIN ISO 1817 DIN EN 15188 DIN ISO 1431-1 DIN EN 14671 DIN EN ISO 10140-2 + 3 more
View Profile

ELMTEC Ingenieurgesellschaft

Active
DAkkS D-K-15099-01-01 Königslutter am Elm, DE
- Gleichspannung Messgeräte > 0,004 V > 0,33 V > 33 V > 330 V + 3 more
View Profile

EMCCons RASEK

Active
DAkkS D-PL-12067-01-02 Ebermannstadt, 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

EMCCons RASEK

Active
DAkkS D-K-12067-01-01 Unterleinleiter, DE
- Gleichspannung > 0,12 V Vorverstärker > 1,2 V > 12 V > 120 V + 3 more
View Profile

ENSATEC, S.L. (Unipersonal)

Active
ENAC LE634 Navarrete, ES
UNE-EN 12211 UNE-EN 12210 UNE-EN 1026 UNE-EN 12207 UNE-EN 14608 + 3 more
View Profile

ENV Surveys

Active
UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
View Profile

ENVIROSUITE IBERICA, S.A. (Unipersonal)

Active
ENAC LE1999 San Sebastián de los Reyes, ES
Environmental noise — determination of s ISO 20906 : 2009-12 :
View Profile

EOLIA

Active
COFRAC 1-2416 La Ciotat, FR
DIN EN 12469 NF S 90-351 NF X 44-201 (Octobre 1984) pour PSM BS EN ISO 14644-1:2015 ISO 14644-3
View Profile

EP EHRLER PRÜFTECHNIK ENGINEERING

Active
DAkkS D-K-21444-01-01 Niederstetten, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 − Durchfluss von Gasen + 3 more
View Profile

EPTA NORD

Active
ACCREDIA 00253 Conselve, IT
DIN CEN ISO 15216-2 ISO 19250 AOAC 2012.01 2016 DIN EN ISO 15587-1 EPA 300.1 1997 + 3 more
View Profile

EPTISA - CINSA INGENIERÍA Y CALIDAD

Active
ENAC LE1450 Basauri, ES
UNE-EN 12350-2 UNE-EN 12504-1 UNE-EN 12390-2 UNE-EN 12390-3 UNE-EN 12350-1 + 3 more
View Profile

EPTISA SERVICIOS DE INGENIERÍA

Active
ENAC LE2757 Madrid, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-2 UNE-EN ISO 16283-3 UNE 74201 UNE-EN ISO 3382-2
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