ISO 140-5-1978 rus PDF

Full title and description

ISO 140-5:1978 — Acoustics — Measurement of sound insulation in buildings and of building elements — Part 5: Field measurements of airborne sound insulation of façade elements and facades. This edition specifies procedures for on-site (in-situ) measurement of the airborne sound insulation provided by façade elements and complete façades, including guidance on instrumentation, measurement positions and calculation of sound reduction indices for real building façades.

Abstract

This withdrawn International Standard (first edition, July 1978) provided a practical method for determining the airborne sound insulation of façade elements and whole façades by field measurement. It covered source selection, receiver and source positions, measurement sequence and basic calculation and reporting of sound reduction indices for façades under real conditions. The document was later revised and replaced by a newer edition.

General information

• Status: Withdrawn (Edition 1, 1978).
• Publication date: July 1978.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.060.10, 91.120.20 (building acoustics / sound measurement).
• Edition / version: Edition 1 (1978).
• Number of pages: 8.

Scope

Defines procedures for field measurement of airborne sound insulation of individual façade elements (windows, doors, glazed units, opaque cladding panels) and of entire façades when subjected to external sound sources (artificial noise sources or real traffic noise). The scope includes positioning of sources and receivers, measurement sequences, basic data processing and presentation of results for the purpose of assessing façade airborne sound insulation in situ. The edition focused on practical field methods rather than laboratory testing.

Key topics and requirements

• Definitions and terms related to airborne sound insulation of façade elements and façades.
• Recommended measurement methods for element-level and global façade assessments (use of artificial sources and consideration of real traffic noise as the excitation source).
• Instrumentation requirements: sound sources, reference microphones, sound level meters and calibration checks.
• Prescribed source and receiver positions and measurement geometry for common façade configurations.
• Measurement sequence and environmental/operational conditions to be recorded (weather, background noise, façade usage).
• Procedures for calculating octave-band sound reduction indices, averaging and presentation of field results.
• Reporting requirements including measurement conditions, uncertainties and any deviations from the standard method.

Typical use and users

Used by acoustical consultants, building acoustics engineers, façade and window manufacturers, construction quality controllers, building inspectors and researchers to assess real-world airborne sound insulation performance of façade elements and whole façades. Typical applications include verification of contractual performance, post-installation acceptance testing, retrofit assessment, and noise mitigation design validation.

Related standards

Part of the ISO series on measurement of sound insulation in buildings and of building elements (ISO 140 series). This 1978 edition was later revised — see ISO 140-5:1998 (revision of ISO 140-5:1978). Other related documents include adjacent parts of ISO 140 (laboratory and field methods for other elements) and standards for rating and classification of sound insulation such as ISO 717 series.

Keywords

acoustics, sound insulation, façade, façade element, field measurement, in-situ testing, airborne sound reduction, building acoustics, ISO 140-5, withdrawn standard.

FAQ

Q: What is this standard?

A: ISO 140-5:1978 is an International Standard that defined field measurement procedures for determining the airborne sound insulation of individual façade elements and complete façades.

Q: What does it cover?

A: It covers measurement geometry, instrumentation, measurement procedures, data processing (octave-band sound reduction indices), and reporting for in-situ evaluation of façade airborne sound insulation under real or artificial excitation.

Q: Who typically uses it?

A: Acoustical consultants, façade/window manufacturers, building engineers, construction quality teams, regulators and researchers performing on-site acoustic performance assessments.

Q: Is it current or superseded?

A: This 1978 edition has been withdrawn. It was superseded by a later edition, ISO 140-5:1998 (revision). The original publication date of the withdrawn edition is July 1978.

Q: Is it part of a series?

A: Yes — it is one part of the ISO series dealing with measurement of sound insulation in buildings and of building elements (ISO 140 series). Other parts address laboratory methods and different measurement contexts; ISO 140-5 specifically deals with façade elements and façades.

Q: What are the key keywords?

A: Façade, façade element, airborne sound insulation, in-situ measurement, building acoustics, sound reduction index, field measurement, ISO 140-5.