ISO 20906-2009 amd1-2013 PDF

Full title and description

ISO 20906:2009 — Acoustics — Unattended monitoring of aircraft sound in the vicinity of airports, amended by ISO 20906:2009/Amd 1:2013 (Amendment 1). The amendment updates or clarifies elements of the 2009 international standard that specifies performance, installation and reporting requirements for permanently installed unattended aircraft sound monitoring systems around airports.

Abstract

ISO 20906:2009 specifies typical applications for permanently installed airport sound‑monitoring systems, performance specifications for instruments, requirements for unattended installation and operation to continuously determine aircraft sound pressure levels at selected locations, the quantities to be determined and reported, reporting frequency, and a procedure for determining expanded uncertainty (in accordance with ISO/IEC Guide 98‑3). The amendment (Amd 1:2013) provides changes that apply to the 2009 text.

General information

• Status: Published; the base standard was confirmed as current following ISO systematic review and the amendment is published.
• Publication date: ISO 20906:2009 (original publication: December 2009); ISO 20906:2009/Amd 1:2013 (Amendment 1 published May–June 2013).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.140.30 — Noise emitted by means of transport (acoustics / airport noise monitoring).
• Edition / version: ISO 20906:2009 (Edition 1) amended by ISO 20906:2009/Amd 1:2013 (Amendment 1).
• Number of pages: ISO 20906:2009 — 36 pages (base standard); ISO 20906:2009/Amd 1:2013 — 3 pages (amendment document).

Scope

This standard defines requirements for permanently installed, unattended systems used to monitor aircraft sound in the vicinity of airports. It covers instrument performance, installation and operational requirements, the range of aircraft operations to be monitored, which acoustic quantities are to be determined and reported, data‑handling and publication frequency, and a procedure to estimate expanded uncertainty of reported results. It does not provide methods for validating predicted sound contours, for determining or validating aircraft certification noise data, or for general ground‑based noise sources except specific runway phases defined in the standard.

Key topics and requirements

• Performance specifications for acoustic measurement instruments and system components used in unattended airport monitoring.
• Requirements for unattended installation, environmental protection, calibration and maintenance of monitoring stations.
• Definition of monitored quantities (sound pressure levels and related metrics) and required reporting formats and frequencies.
• Procedures for estimating expanded measurement uncertainty consistent with ISO/IEC Guide 98‑3 (GUM).
• Clarifications and changes introduced by Amendment 1 (2013) that modify or supplement the 2009 text.

Typical use and users

Used by airport operators, environmental and acoustical consultants, national and local environmental regulators, manufacturers and integrators of permanent noise‑monitoring equipment, and researchers assessing aircraft noise exposure and compliance. The standard is applied where continuous, unattended monitoring of aircraft sound is required for community noise assessment, operational reporting or regulatory compliance.

Related standards

ISO 20906 is related to other acoustics and environmental noise standards, for example ISO 1996 series (description, measurement and assessment of environmental noise) and the ISO/IEC Guide 98‑3 (the Guide to the Expression of Uncertainty in Measurement, GUM) which is referenced for uncertainty estimation. National/adopted versions and combined designations (e.g., BS ISO 20906:2009 + A1:2013) exist where countries publish identical/adopted texts.

Keywords

Airport noise, aircraft sound monitoring, unattended monitoring, acoustics, environmental noise, measurement uncertainty, ISO 20906, amendment 2013, noise monitoring system performance.

FAQ

Q: What is this standard?

A: ISO 20906:2009 is an international standard that defines requirements for permanently installed unattended monitoring systems used to measure aircraft sound around airports; ISO 20906:2009/Amd 1:2013 is Amendment 1 to that 2009 standard.

Q: What does it cover?

A: It covers instrument performance, unattended installation and operation, quantities to be measured and reported, reporting frequency, and a method to determine expanded uncertainty of reported acoustic data; it excludes validation of predicted noise contours and aircraft certification noise procedures.

Q: Who typically uses it?

A: Airport authorities, environmental and acoustical consultants, regulators, and manufacturers/suppliers of noise monitoring equipment use the standard to design, operate and report results from permanent unattended aircraft noise monitoring systems.

Q: Is it current or superseded?

A: As of the ISO bibliographic records for the standard and its amendment, the 2009 edition with Amendment 1 (2013) is published and the base standard has been subject to ISO systematic review processes; ISO records indicate the document remained confirmed following review activity. Users should check the official ISO catalogue or their national standards body for the very latest status before purchase or citation.

Q: Is it part of a series?

A: It is part of ISO acoustics work (ISO/TC 43/SC 1) and is associated with other environmental noise standards (for example the ISO 1996 series) and measurement/uncertainty guidance (ISO/IEC Guide 98‑3).

Q: What are the key keywords?

A: Airport noise, unattended monitoring, aircraft sound, acoustic measurement, environmental noise, monitoring system performance, measurement uncertainty.