ISO 140-5-1998 PDF

Full title and description

Acoustics — Measurement of sound insulation in buildings and of building elements — Part 5: Field measurements of airborne sound insulation of façade elements and façades. This part specifies methods for in‑situ measurement of airborne sound insulation of individual façade elements (e.g. windows) and of whole façades, covering both element methods (including loudspeaker and traffic‑source methods) and global methods (outdoor/indoor level difference under real traffic conditions).

Abstract

ISO 140-5:1998 defines field measurement procedures to assess the airborne sound insulation performance of façade elements and complete façades. It describes preferred element measurement techniques (loudspeaker and road‑traffic methods), global (façade) measurement approaches, and guidance on comparing in‑situ apparent sound reduction indices with laboratory measurements. The standard has been withdrawn and its field measurement topics were later incorporated into the ISO 16283 series.

General information

• Status: Withdrawn / superseded (withdrawal of the international standard).
• Publication date: August 1998 (Edition 2, published 1998-08).
• Publisher: ISO (International Organization for Standardization).
• ICS / categories: 91.060.10 (Walls, partitions, façades); 91.120.20 (Acoustics in buildings, sound insulation).
• Edition / version: Edition 2 (1998).
• Number of pages: 24 (edition 2, English-language publication — counts vary slightly by national publication).

Scope

Specifies two series of field measurement methods for airborne sound insulation of façade elements and complete façades: element methods (to estimate an element’s sound reduction index, using artificial loudspeakers or environmental noise such as traffic) and global methods (to estimate outdoor/indoor level difference under real traffic conditions). The document gives procedural details, instrumentation guidance and information on how to interpret apparent sound reduction indices and how they relate to laboratory results measured to other ISO acoustics parts.

Key topics and requirements

• Definition of element vs. global (façade) field measurement approaches.
• Element loudspeaker method — procedures to obtain an apparent sound reduction index comparable with laboratory tests when appropriate.
• Element traffic (road/rail/aircraft) methods — practical procedures when artificial sources cannot be used.
• Global methods for outdoor/indoor level difference measurements under actual traffic noise.
• Instrumentation, measurement positions, signal processing and uncertainty/precision considerations for in‑situ measurements.
• Guidance on comparing in‑situ apparent indices with laboratory sound reduction indices (accounting for flanking and site effects).

Typical use and users

Used by acoustical consultants, building physicists, façade/window manufacturers, test laboratories performing on‑site verification, building control authorities and researchers. Typical applications include performance verification during construction, product compliance checks, retrofit assessments and research into façade acoustic performance under real environmental conditions.

Related standards

ISO 140-5:1998 has been withdrawn and its field measurement subject matter has been superseded and incorporated into the ISO 16283 series (notably ISO 16283-1:2014 for airborne field measurements and ISO 16283-3:2016 for façade/element measurements). Other related acoustics laboratory standards include ISO 140-3 and ISO 140-10 (historical laboratory measurement methods).

Keywords

field measurement, façade, airborne sound insulation, sound reduction index, element method, global method, loudspeaker method, traffic noise method, in‑situ acoustics, ISO 140, ISO 16283.

FAQ

Q: What is this standard?

A: ISO 140-5:1998 is an international standard that defined field measurement procedures for airborne sound insulation of façade elements and whole façades.

Q: What does it cover?

A: It covers element and global field measurement methods (including loudspeaker and traffic‑source techniques), instrumentation and procedural details, and guidance on interpreting apparent sound reduction indices in relation to laboratory measurements.

Q: Who typically uses it?

A: Acoustical consultants, test laboratories, façade/window manufacturers, building control authorities and researchers performing on‑site sound insulation assessments.

Q: Is it current or superseded?

A: It has been withdrawn. The field measurement topics formerly covered by ISO 140-5:1998 were superseded by the ISO 16283 series (for example ISO 16283-1:2014 and ISO 16283-3:2016); withdrawal/transition to the newer parts was completed (withdrawal noted effective 1 February 2016 in some national catalogs).

Q: Is it part of a series?

A: Yes — it was “Part 5” of a set of acoustics standards dealing with measurement of sound insulation in buildings and of building elements; the numbering has since been reorganized and the modern field measurement parts are published under ISO 16283.

Q: What are the key keywords?

A: Façade, airborne sound insulation, sound reduction index, field measurement, loudspeaker method, traffic method, in‑situ measurement, ISO 16283.