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

1,670 Accredited labs

18 Countries

Showing 76–100 of 1,670 labs

AQRAT

DAkkS D-K-15060-01-00 Dettingen unter Teck, DE

Messschieber für 0 mm Außen-, Innen- und > 500 mm > 1000 mm Tiefenmessschieber * 0 mm Sondermessschieber 0 mm + 3 more

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AQUANALYSE Laboratoire

COFRAC 1-2194 Plancy L'Abbaye, FR

NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 DIN EN 12880 ISO 5815-1 + 3 more

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ARCO

UKAS 8495 Hull, GB

BS EN ISO 20344::2011 Clause 5.1 ASTM D 1388 BS EN ISO 13997:1999 ISO 11611 DIN EN ISO 13997 + 3 more

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ARCO SOLUTIONS

ACCREDIA 01923 Trieste, IT

DIN EN 13725:2003-07 und Berichtigung

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ARESSE ENGINEERING

ENAC LE2071 Berriozar, ES

IEC 61400-11:2012/ AMD:2018 IEC 61400-12-1 IEC 61400-12-3 IEC 61400-13 IEC 61400-12-5

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ARMOUR Analytical Services

UKAS 20835 Warmley, GB

(HSG 264, 2012)

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AS International Corporation

UKAS 4352 Liverpool, GB

ISO 5983-1:2005/Cor.1:2008, ISO20483:201 07L.1.07 based on ISO 6865:2001 ISO 712 07L.1.02 based on ISO 6496:1999, ISO 12966-2 + 3 more

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ASOCIACION EMPRESARIAL CENTRO TECNOLOGICO DEL METAL DE LA REGION DE MURCIA

ENAC LC10.098 San Ginés, ES

EURAMET cg-18 CEM Ed CEM GUIA CEM TH-001 CEM TH-007 + 3 more

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ASOCIACION INSTITUTO DE BIOMECANICA DE VALENCIA (IBV)

ENAC LE1105 Valencia, ES

DIN EN 13864 DIN EN 14808 DIN EN 12235 ISO 2549 ISO 4919 + 3 more

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AIJU

ENAC LE016 Ibi, ES

UNE-EN 71-1 ISO 8124-1 ISO 8124-2 ASTM F963-17 (NM_001718: c.1-c.500) + 3 more

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AITEX

ENAC LE025 Alcoi, ES

DIN EN ISO 11612 DIN EN ISO 3175-2 ISO 17493 DIN EN ISO 17227 DIN EN ISO 6330 + 3 more

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ITC

ENAC LE004 Castellón de la Plana, ES

UNE-EN ISO 10545-2 UNE-EN ISO 10545-3 ASTM C373 UNE-EN ISO 10545-4 UNE-EN ISO 10545-5 + 3 more

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INESCOP

ENAC LE146 Elda, ES

DIN EN ISO 20344 DIN EN 13634 BS EN ISO 20344::2011 Clause 5.1 DIN EN ISO 22568-1 ISO 22568-1: 2019 Clause 5.2.1 + 3 more

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ASOCIACIÓN LACECAL, LABORATORIO DE CALIBRACIÓN ELÉCTRICA DE CASTILLA Y LEÓN.

ENAC LC10.028 Valladolid, ES

0 mV ≤ U < 200 mV 0,2 V ≤ U < 2 V 2 V ≤ 1 mV ≤ U < 220 mV 0,22 V ≤ U < 2,2 V 2,2 0 mV ≤ U ≤ 100 mV 0,1 V < U ≤ 1 V 1 V < 0 μA ≤ I < 200 μA 0,2 mA ≤ I < 2 mA 2 mA 0 μA ≤ I < 220 μA 0,22 mA ≤ I < 2,2 mA 2 + 3 more

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