ISO 8297-1994 amd1-2021 PDF

Full title and description

ISO 8297:1994/Amd 1:2021 — Acoustics — Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment — Engineering method — Amendment 1. This document is Amendment 1 (published 16 April 2021) to the original ISO 8297:1994 engineering method for estimating sound power levels from large, multisource industrial plants for use in environmental noise assessment.

Abstract

The amendment (Amd 1:2021) applies to ISO 8297:1994 and provides updates to the original engineering method used to determine octave-band sound power levels of large industrial installations that contain multiple noise sources. The method is intended for plants whose major dimensions lie in the horizontal plane and that radiate sound approximately uniformly in horizontal directions. Measurements are taken as unweighted octave-band sound pressure levels and results can be reported as octave-band and, if required, A-weighted sound power levels. The amendment supplies clarifications, editorial corrections and updated references to the 1994 text.

General information

• Status: Published (Amendment to ISO 8297:1994)
• Publication date: 16 April 2021
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 17.140.20 (Noise emitted by machines and equipment)
• Edition / version: Amendment 1 to ISO 8297:1994 (Edition 1 of the amendment, 2021)
• Number of pages: 3 (amendment document)

Scope

ISO 8297:1994 (as amended) specifies an engineering procedure for determining sound power levels of large multisource industrial plants for the purpose of evaluating environmental sound pressure levels. It is limited to plants with multiple noise sources whose principal dimensions are in the horizontal plane and which radiate sound substantially uniformly in horizontal directions. The procedure uses octave-band measurements of unweighted sound pressure levels and gives results in octave-band and optionally A-weighted sound power levels. Amendment 1 (2021) modifies the original text with clarifications and updated references while leaving the core engineering approach intact.

Key topics and requirements

• Engineering method to estimate sound power levels of multisource industrial plants for environmental noise assessment.
• Measurement of unweighted sound pressure levels in octave bands at specified positions around the plant.
• Applicability limited to large plants with main dimensions in the horizontal plane and broadly uniform horizontal radiation.
• Calculation and expression of results as octave-band sound power levels and, if required, A-weighted sound power levels.
• Requirements for measurement positions, averaging procedures and basic uncertainty considerations (as described in the main 1994 text).
• 2021 amendment provides editorial corrections, clarifications to procedures and updates to normative references to improve usability and consistency with related acoustics standards.

Typical use and users

Used by environmental acousticians, consulting engineers, regulatory agencies, industrial noise managers and researchers performing environmental noise assessments for large industrial sites. Typical applications include pre-operational planning, permitting, compliance checks, environmental impact assessments and strategic noise mapping where direct sound power determination from many individual sources is impractical.

Related standards

Commonly used alongside or referenced with other acoustics and noise standards such as the main ISO 8297:1994 text (base document), ISO 3744 and ISO 3746 (sound power determination in various environments), ISO 11201 (emission sound pressure levels at workstations), ISO 9614 (sound intensity methods) and the ISO 1996 series (environmental noise assessment and description). National and regional adoptions or identical texts (EN/SS/ČSN versions) may also exist.

Keywords

acoustics; sound power level; multisource industrial plant; environmental noise; engineering method; octave bands; A-weighting; noise assessment; measurement positions; uncertainty; ISO 8297; amendment 2021.

FAQ

Q: What is this standard?

A: It is Amendment 1 (published 16 April 2021) to ISO 8297:1994, an ISO engineering method for determining sound power levels of large multisource industrial plants for environmental noise evaluation.

Q: What does it cover?

A: The document covers an engineering procedure using octave-band sound pressure measurements around a plant to estimate octave-band (and optionally A-weighted) sound power levels for use in environmental noise assessments. The amendment supplies clarifications and updated references to the 1994 standard.

Q: Who typically uses it?

A: Environmental acousticians, noise consultants, regulators, industrial environmental managers and researchers who assess or manage environmental noise from large industrial facilities.

Q: Is it current or superseded?

A: The amendment (ISO 8297:1994/Amd 1:2021) was published on 16 April 2021. The base standard ISO 8297:1994 remains the governing document; that 1994 edition was reviewed and confirmed by ISO on 10 April 2024. Together they are the current normative text unless a full revision is published.

Q: Is it part of a series?

A: It is a standalone engineering-method standard within ISO acoustics work (ISO/TC 43/SC 1) and is normally used in conjunction with other ISO acoustics standards (for example ISO 3744, ISO 3746, ISO 11201 and the ISO 1996 series) depending on the measurement circumstances and reporting needs.

Q: What are the key keywords?

A: Acoustics; sound power; multisource plant; environmental noise; octave-band; A-weighting; engineering method; ISO 8297; amendment 2021.