ISO 11202-2010 PDF

Full title and description

ISO 11202:2010 — Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections. This International Standard specifies an in situ method for measuring emission sound pressure levels (primarily A‑weighted) of machines and equipment at operator work stations and other specified positions, with procedures for approximate environmental corrections, background noise correction and options for octave/third‑octave band and C‑weighted peak measurements.

Abstract

ISO 11202:2010 describes a practical survey method for determining emission sound pressure levels of machinery and equipment in their normal environment (in situ). The method supports measurement at a work station (including cabs or enclosures) and at bystander or other specified positions. Environmental corrections based on equivalent sound absorption and source directivity are provided to reduce the influence of reflecting surfaces. The standard defines procedures yielding accuracy grade 2 (engineering) or grade 3 (survey), includes corrections for background noise, and permits measurement of A‑weighted emission levels, frequency‑band levels and C‑weighted peak levels where required. An Amendment (Amd 1:2020) updates parts of the original text and is commonly included in consolidated national adoptions.

General information

• Status: Published (current edition confirmed at review).
• Publication date: May 2010 (ISO 11202:2010).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.140.20 — Noise emitted by machines and equipment (Acoustics).
• Edition / version: Edition 2 (2010); amendment ISO 11202:2010/Amd 1:2020 exists and is often incorporated in consolidated national/EN/DIN publications.
• Number of pages: 41 (original ISO 2010 edition).

Scope

Applies to the in situ determination of emission sound pressure levels of machinery and equipment at operator work stations and at other specified positions in the vicinity of the source. The standard covers measurement procedures, microphone positioning, source mounting and operation, background noise correction, and a method for applying an approximate environmental correction based on room absorption and source directivity. It is intended for a wide range of machine types and sizes and for different test environments that meet the standard's prescribed minimum requirements.

Key topics and requirements

• Definition of emission sound pressure level at a work station and at other specified positions (A‑weighted, with options for frequency bands and C‑weighted peak).
• Measurement procedures for in situ testing, including microphone selection and placement, source mounting and operating conditions.
• Background noise correction methods and applicability criteria (survey and engineering accuracy grades).
• Approximate environmental correction procedure based on equivalent sound absorption area and source directivity to compensate for reflecting surfaces.
• Specification of accuracy grades (grade 2 — engineering; grade 3 — survey) and associated uncertainties.
• Instructions for choice of test positions: operator work station, cab/enclosure, bystander positions and movement paths.
• Guidance for reporting results to allow comparison between units and under defined environmental and mounting conditions.

Typical use and users

Used by acoustic test laboratories, machinery and equipment manufacturers, product design and R&D teams, occupational health and safety professionals, regulatory authorities and acoustic consultants. Typical applications include product noise declarations, design validation, comparative testing between machine units or models, compliance demonstration for noise-related directives or regulations, and workplace noise assessments at operator positions and nearby bystander locations.

Related standards

Part of the ISO 11200 series on machinery noise: ISO 11200 (guidance), ISO 11201, ISO 11203, ISO 11204, ISO 11205. Related standards and documents include ISO 12001 (definitions for types of noise), ISO 3744/3746 (laboratory/semi‑anechoic and engineering emission methods), and national/adopted versions (EN ISO / DIN EN ISO consolidated publications that may include Amendment 1:2020).

Keywords

emission sound pressure level, work station, machinery noise, in situ measurement, environmental correction, A‑weighted level, C‑weighted peak, accuracy grade, survey method, background noise correction, microphone placement.

FAQ

Q: What is this standard?

A: ISO 11202:2010 is an international standard that specifies an in situ survey method for determining emission sound pressure levels of machinery and equipment at work stations and other specified positions, including procedures for applying approximate environmental corrections.

Q: What does it cover?

A: It covers measurement procedures (microphone placement, source mounting and operation), background noise correction, environmental correction based on room absorption and source directivity, accuracy grades (engineering and survey), and options for band and peak measurements.

Q: Who typically uses it?

A: Acoustic test labs, manufacturers, designers, occupational health and safety professionals, regulatory bodies and acoustic consultants use it for product noise testing, comparative measurements and workplace noise assessments.

Q: Is it current or superseded?

A: The ISO 11202:2010 edition is published and has an Amendment (Amd 1:2020). Many national and regional bodies publish consolidated or adopted versions (EN/DIN etc.) that incorporate the amendment; users should check the edition/adoption applicable in their jurisdiction for the most up‑to‑date consolidated text.

Q: Is it part of a series?

A: Yes — it is part of the ISO 11200 family of standards addressing methods for determination of emission sound pressure levels at a work station and other specified positions (ISO 11200, ISO 11201, ISO 11203, ISO 11204, ISO 11205).

Q: What are the key keywords?

A: Emission sound pressure level, work station, environmental correction, A‑weighting, C‑weighted peak, machinery noise, in situ measurement, accuracy grade, background noise correction.