ISO 10140-2-2021 PDF

Full title and description

ISO 10140-2:2021 — Acoustics — Laboratory measurement of sound insulation of building elements — Part 2: Measurement of airborne sound insulation. This International Standard specifies a laboratory method for measuring the airborne sound insulation of building products (walls, floors, doors, windows, façade elements, glazing and related small technical elements and combinations) in test facilities where flanking transmission is suppressed.

Abstract

Specifies procedures for generating and measuring sound in laboratory source and receiving rooms and for calculating airborne sound insulation indices that allow comparison, classification and design of building elements. Results are intended for laboratory comparison and classification and are not directly transferable to in-situ performance without accounting for flanking transmission and boundary conditions.

General information

• Status: Published.
• Publication date: April 2021 (Edition 2, published 15 April 2021).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.120.20 (Acoustics in building; sound insulation).
• Edition / version: Edition 2 (2021).
• Number of pages: 14 pages (PDF).

Information above is taken from the ISO catalogue entry for ISO 10140-2:2021.

Scope

Defines a laboratory test method for airborne sound insulation of building elements and assemblies. It applies to products such as partition walls, floors, doors, windows, shutters, façade elements, glazing, ventilation panels and similar components and their combinations (for example walls or floors with linings, suspended ceilings or floating floors). The standard covers measurement arrangement, sound sources, microphone positions, measurement bandwidths and calculation of sound insulation quantities; it clarifies that laboratory results exclude flanking effects and must be interpreted with care for field performance estimation.

Key topics and requirements

• Laboratory test facility requirements and suppression of flanking transmission.
• Source and receiving room configuration, sound source characteristics and diffuse field considerations.
• Microphone positioning, measurement bandwidth (one-third octave bands) and repeatability requirements.
• Calculation methods for airborne sound insulation indices (e.g., sound reduction index R and related spectral and single-number quantities).
• Reporting requirements, limitations on direct transferability to on-site measurements and guidance on factors affecting in-situ performance (flanking, boundary conditions, loss factors).

Typical use and users

Used by acoustical laboratories, product manufacturers (doors, windows, partition systems, façade and glazing suppliers), acoustic consultants, building designers and regulatory bodies for product comparison, classification and to support acoustic design choices. Testing bodies rely on this standard to produce repeatable, comparable laboratory sound insulation data for product datasheets and type-approval. Manufacturers use results to demonstrate compliance with contractual or regulatory acoustic performance requirements in specifications.

Related standards

ISO 10140 is a multi-part series; related parts that are commonly used together include ISO 10140-1 (Application rules for specific products), ISO 10140-3 (Measurement of impact sound insulation) and ISO 10140-4 (Measurement procedures and requirements). These companion parts define application rules, impact-sound methods and measurement procedures that complement the airborne sound test described in Part 2.

Keywords

airborne sound insulation, laboratory measurement, sound reduction index, building elements, acoustics, ISO 10140, test facility, flanking transmission, one-third octave bands.

FAQ

Q: What is this standard?

A: ISO 10140-2:2021 is the ISO International Standard that specifies the laboratory method for measuring airborne sound insulation of building elements (edition 2, 2021).

Q: What does it cover?

A: It covers laboratory arrangements, sound source and microphone placement, measurement procedures in one-third octave bands, calculation of airborne sound insulation indices and reporting requirements. It emphasises that results are laboratory values and that in-situ performance may differ due to flanking paths and boundary conditions.

Q: Who typically uses it?

A: Accredited acoustical test laboratories, product manufacturers, acoustic consultants, building designers and certification bodies use this standard to obtain comparable laboratory sound insulation data for design, specification and product classification.

Q: Is it current or superseded?

A: Current — ISO 10140-2:2010 was withdrawn and replaced by ISO 10140-2:2021 (Edition 2, April 2021). Users should reference the 2021 edition for the latest laboratory procedures.

Q: Is it part of a series?

A: Yes — ISO 10140 is a multipart series on laboratory measurement of sound insulation of building elements (e.g., Part 1 application rules, Part 2 airborne sound, Part 3 impact sound, Part 4 measurement procedures, Part 5 test facility requirements). Parts are intended to be used together where applicable.

Q: What are the key keywords?

A: Airborne sound insulation; sound reduction index (R); laboratory test facility; flanking transmission; one-third octave bands; building elements; acoustic measurement.