ISO 16283-1:2014

Overview

ISO 16283-1:2014 - "Acoustics - Field measurement of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation" - specifies field procedures to determine airborne sound insulation between two rooms using sound pressure measurements. It applies to room volumes from 10 m³ to 250 m³ and the frequency range 50 Hz to 5 000 Hz. Results are frequency-dependent and can be converted to a single‑number rating using ISO 717-1.

Key topics and technical requirements

• Scope and applicability: Measurement in furnished or unfurnished rooms where the sound field may or may not be diffuse.
• Frequency and volume limits: Intended for 50 Hz–5 000 Hz and room volumes 10–250 m³; includes a specific low-frequency procedure (50, 63, 80 Hz one‑third octave bands).
• Measurement quantity: Energy-average sound pressure levels in source and receiving rooms; level difference (D) calculation to quantify airborne insulation.
• Microphone methods: Supported measurement techniques include fixed microphone positions, mechanized continuously‑moving microphones, and manually‑scanned microphones (hand‑held or on a rod).
• Reverberation time: Procedures to measure reverberation time in the receiving room (default and low‑frequency methods) as it affects insulation calculations.
• Background noise corrections: Guidance on measuring and correcting for background noise in the receiving room.
• Instrumentation and calibration: Requirements reference established electroacoustic standards (calibrators and sound level meters) and calibration/verification procedures.
• Data processing: Conversion to octave bands, energy averaging, uncertainty estimation, and recording/reporting formats.
• Annexes: Practical guidance including loudspeaker requirements, example layouts for horizontal/vertical measurements, and forms for recording results.

Practical applications and users

ISO 16283-1 is used to:

• Verify and compare airborne sound insulation of partitions, walls, doors and building elements in situ.
• Support regulatory compliance, building certification and post‑construction verification.
• Guide acoustic design, building remediation and product validation (e.g., proprietary wall systems, glazing). Primary users:
• Acoustic consultants and test laboratories
• Architects, façade and building services engineers
• Building inspectors, developers and contractors
• Manufacturers of building elements and acoustic products

Related standards (important references)

• ISO 717-1 - rating of airborne sound insulation (single-number ratings)
• ISO 3382-2 - reverberation time in ordinary rooms
• IEC standards for sound level meters and calibrators (e.g., IEC 61672 series, IEC 60942)

Keywords: ISO 16283-1, airborne sound insulation, field measurement, sound pressure measurements, building acoustics, sound insulation testing, reverberation time, ISO 717-1.