ISO 140-12-2000 PDF

Full title and description

ISO 140-12:2000 — Acoustics — Measurement of sound insulation in buildings and of building elements — Part 12: Laboratory measurement of room-to-room airborne and impact sound insulation of an access floor. This part of ISO 140 specifies laboratory procedures and requirements for determination of airborne and impact sound insulation between adjacent rooms where an access (raised) floor is used as a building element.

Abstract

ISO 140-12:2000 provides a method for laboratory measurement of room-to-room airborne and impact sound insulation where an access (raised) floor is installed. The standard defines the test specimen, mounting and coupling arrangements, excitation and measurement positions, procedures for obtaining sound pressure levels and impact levels, calculation of insulation values, and reporting requirements. The document was published in 2000 and has since been withdrawn and superseded by later standards addressing similar measurements.

General information

• Status: Withdrawn (superseded).
• Publication date: February 2000 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.120.20 (Acoustics).
• Edition / version: Edition 1 (2000).
• Number of pages: 12.

Scope

This standard covers laboratory procedures for measuring room-to-room airborne and impact sound insulation where an access (raised) floor forms part of the separating construction. It is limited to laboratory conditions (controlled source and receiver rooms) and specifies specimen preparation, mounting, excitation methods, measurement positions, data processing and presentation of results for the particular case of access floor assemblies.

Key topics and requirements

• Definition of test specimen and representative mounting for access (raised) floors in laboratory opening between rooms.
• Measurement procedures for airborne sound insulation (sound pressure level measurements, source levels, and background noise limits).
• Measurement procedures for impact sound insulation using standardized impact sources and measurement positions.
• Required instrumentation, microphone and loudspeaker placement, and calibration practices.
• Data reduction and calculation of single-number and frequency-dependent insulation values, including octave- or one-third-octave band results.
• Reporting format, minimum information to be provided, and uncertainty considerations for laboratory results.

Typical use and users

Used by acoustical test laboratories, building-product manufacturers (especially access/raised floor system producers), façade and interior acoustics consultants, research institutes and quality assurance personnel to characterize and compare the airborne and impact sound insulating performance of access floor systems under controlled laboratory conditions.

Related standards

ISO 140-12:2000 is part of the ISO 140 series on measurement of sound insulation in buildings and of building elements. It has been withdrawn and replaced by later and broader measurement standards for building elements (for example, subsequent standards in the ISO 10848 / ISO 10140 families that address laboratory measurement methods and mounting conditions). Other related standards include ISO 140 (other parts addressing façades, partitions and field measurement methods) and standards that define single-number rating systems for building sound insulation.

Keywords

acoustics; sound insulation; access floor; raised floor; airborne sound; impact sound; laboratory measurement; ISO 140 series; ISO 10848; room-to-room insulation; test method.

FAQ

Q: What is this standard?

A: ISO 140-12:2000 is an international standard that specified laboratory methods for measuring room-to-room airborne and impact sound insulation where an access (raised) floor is used as a building element.

Q: What does it cover?

A: It covers specimen preparation and mounting, measurement positions and excitation, instrument and calibration requirements, procedures to obtain airborne and impact sound insulation data in a laboratory, data reduction, reporting and uncertainty considerations for access floor assemblies.

Q: Who typically uses it?

A: Acoustical test laboratories, product manufacturers (access/raised floors), acoustic consultants, building researchers and quality assurance teams use this standard to evaluate and document laboratory sound insulation performance of access floor systems.

Q: Is it current or superseded?

A: ISO 140-12:2000 has been withdrawn and superseded by later standards that consolidate and update laboratory measurement methods for building elements (notably related parts of the ISO 10848 and ISO 10140 families). It is therefore not the current reference for new measurements.

Q: Is it part of a series?

A: Yes. It is one part of the ISO 140 series dealing with measurement of sound insulation in buildings and of building elements. Measurement of building element sound insulation is also addressed across related ISO series such as ISO 10140 and ISO 10848.

Q: What are the key keywords?

A: Acoustics, sound insulation, access floor, raised floor, airborne sound, impact sound, laboratory measurement, ISO 140, ISO 10848, room-to-room.