Scope
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
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DIN EN ISO 3382-1
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BS EN ISO 3382-1
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NF EN ISO 3382-1
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UNI EN ISO 3382-1
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UNE EN ISO 3382-1
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NEN EN ISO 3382-1
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DIN EN 60268-16
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BS EN 60268-16
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NF EN 60268-16
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UNI EN 60268-16
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UNE EN 60268-16
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NEN EN 60268-16
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BS EN ISO 140-4:1998
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