EN ISO 11546-1:2009 PDF

Name: EN ISO 11546-1:2009 — Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1:1995)
SKU: EN ISO 11546-1:2009
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Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1:1995)

Название (английский):

EN ISO 11546-1:2009

Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1:1995)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 23
Дата публикации:: 19 августа 2009 г.
Издание:: CEN EN 11546 edition 2 version 1
ICS:: 13.340.20

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Описание (английский):

Specifies laboratory methods for the determination of the sound insulation performance of small machine enclosures. Does apply to a total enclosure only.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 11546-1:2009 (ISO 11546-1:1995) specifies laboratory methods for determining the sound insulation performance (insertion loss) of small machine enclosures under controlled conditions for declaration purposes. It applies to a total enclosure only (not individual panels) and is intended primarily for freestanding enclosures with volumes less than 2 m³. When the actual sound source is used, larger volumes may be accommodated subject to the referenced standards’ limits. The standard was adopted by CEN and supports conformity with relevant EU machinery directives.

Key topics and requirements

Measurement scope

Determination of insertion loss expressed as reductions in sound power or sound pressure levels.
Laboratory conditions that conform to referenced ISO/IEC standards.

Choice of measurement method

Methods using the actual sound source (machine inside the enclosure).
Methods for enclosures without the actual source: reciprocity method and artificial sound source method.
Limitations: reciprocity and artificial source methods are generally limited to enclosures ≤ 2 m³ and are not suitable for close‑fitting enclosures.

Instrumentation and procedures

Instrumentation and test environment aligned with series standards (ISO 3740, ISO 9614, ISO 11200 and related IEC standards for meters, filters and calibrators).
Requirements for measuring sound power, sound pressure at specified positions, and environmental corrections when needed.

Data handling

Procedures for weighted sound power insulation, estimation of noise insulation for a specific noise spectrum, and calculation of measurement uncertainty.
Detailed lists of information to be recorded and reported about the test object, conditions, instrumentation and acoustical data.

Annexes

Practical aids such as an artificial sound source description, example source spectrum, and a worked example for estimating insulation for a given spectrum.

Applications

Declaring the acoustic performance of machine enclosures for product datasheets, procurement, and regulatory compliance.

Designing and validating noise‑control enclosures for industrial machinery, HVAC units and small equipment.

Comparing enclosure concepts during product development to quantify expected noise reduction (insertion loss).

Related standards

ISO 11546-2 (in situ measurements for acceptance/verification)

ISO 11957 (cabins)

ISO 3740 series, ISO 3743, ISO 3741, ISO 3742, ISO 11204, ISO 9614, ISO 11200

Relevant IEC standards for sound level meters, calibrators and filters

Keywords: EN ISO 11546-1:2009, sound insulation, acoustics, machine enclosures, laboratory measurements, insertion loss, reciprocity method, artificial sound source, sound power, sound pressure.

EN ISO 11546-1:2009 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications

Who uses this standard

Related standards

Технические детали

ISO 11546-1:1995

Acoustics — Determination of sound insulation performances of enclosures — Part 1: Measurements under laborat…

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ISO 11200:2014/Amd 1:2018

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SIST EN ISO 11546-2:2009

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SIST EN ISO 11957:2009

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SIST EN ISO 3743-2:2019

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BS EN ISO 3741:2010

Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure.…