BS EN ISO 11202:2010+A1:2021 Acoustics Standard

Welcome to the comprehensive guide on the BS EN ISO 11202:2010+A1:2021 standard, a crucial document for professionals dealing with acoustics and noise management in machinery and equipment. This standard is essential for ensuring that noise levels at workstations and other specified positions are accurately determined, taking into account environmental corrections.

Overview of the Standard

The BS EN ISO 11202:2010+A1:2021 standard provides a detailed methodology for determining the emission sound pressure levels of noise emitted by machinery and equipment. It is designed to help professionals assess noise levels at workstations and other specified positions, ensuring compliance with safety and health regulations.

This standard is particularly important for industries where machinery noise can impact worker health and safety. By applying approximate environmental corrections, it allows for a more accurate assessment of noise levels, which is critical for maintaining a safe working environment.

Key Features

• Standard Number: BS EN ISO 11202:2010+A1:2021
• Pages: 56
• Released: 2021-06-02
• ISBN: 978 0 539 03282 6
• Status: Standard

Why This Standard is Essential

Noise pollution is a significant concern in many industrial settings, and managing it effectively is crucial for protecting workers' hearing and overall health. The BS EN ISO 11202:2010+A1:2021 standard provides a reliable framework for measuring and controlling noise emissions, helping organizations to:

• Ensure compliance with occupational health and safety regulations.
• Protect workers from the harmful effects of excessive noise exposure.
• Improve workplace productivity by reducing noise-related distractions.
• Enhance the overall working environment by minimizing noise pollution.

Detailed Content

This standard spans 56 pages, offering a comprehensive approach to noise measurement and management. It includes detailed procedures for determining sound pressure levels, taking into account various environmental factors that can affect noise measurements. The document is structured to provide clear guidance, making it accessible for both seasoned professionals and those new to the field of acoustics.

Application and Benefits

The application of this standard is broad, covering various types of machinery and equipment across different industries. By implementing the guidelines set out in the BS EN ISO 11202:2010+A1:2021 standard, organizations can achieve several benefits:

• Accurate Noise Assessment: Gain precise measurements of noise levels, ensuring that all potential sources of noise are accounted for.
• Improved Safety: Reduce the risk of hearing damage and other health issues associated with high noise levels.
• Regulatory Compliance: Meet national and international noise regulations, avoiding potential fines and legal issues.
• Enhanced Reputation: Demonstrate a commitment to worker safety and environmental responsibility, enhancing your organization's reputation.

Conclusion

The BS EN ISO 11202:2010+A1:2021 standard is an invaluable resource for any organization looking to manage noise emissions effectively. By following its guidelines, you can ensure a safer, more productive workplace while also meeting regulatory requirements. Whether you are an acoustics professional, a safety officer, or a facility manager, this standard provides the tools you need to address noise pollution comprehensively.

Invest in the BS EN ISO 11202:2010+A1:2021 standard today and take a proactive step towards better noise management and worker safety.

BS EN ISO 11202:2010+A1:2021

This standard BS EN ISO 11202:2010+A1:2021 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 is classified in these ICS categories:

• 17.140.20 Noise emitted by machines and equipment

1.1 General

This International Standard specifies a method for determining the emission sound pressure levels of machinery or equipment, at a work station and at other specified positions nearby, in situ. A work station is occupied by an operator and may be located in open space, in the room where the source under test operates, in a cab fixed to the source under test, or in an enclosure remote from the source under test. One or more specified positions may be located in the vicinity of a work station, or in the vicinity of an attended or unattended machine. Such positions are sometimes referred to as bystander positions.

Emission sound pressure levels are determined as A-weighted levels. Additionally, levels in frequency bands and C-weighted peak emission sound pressure levels can be determined in accordance with this International Standard, if required.

NOTE 1 The contents of the series ISO 11200^[15] to ISO 11205^[19] are summarized in ISO 11200^[15].

Methods are given for determining a local environmental correction (subject to a specified limiting maximum value) to be applied to the measured sound pressure levels in order to eliminate the influence of reflecting surfaces other than the plane on which the source under test is placed. This correction is based on the equivalent sound absorption area of the test room and on radiation characteristics (source location or directivity at the work station).

With the method specified in this International Standard, results of accuracy grade 2 (engineering grade) or accuracy grade 3 (survey grade) are obtained. Corrections are applied for background noise and, as described above, for the acoustic environment. Instructions are given for the mounting and operation of the source under test and for the choice of microphone positions for the work station and for other specified positions. One purpose of the measurements is to permit comparison of the performance of different units of a given family of machines, under defined environmental conditions and standardized mounting and operating conditions.

NOTE 2 The data obtained can also be used for the declaration and verification of emission sound pressure levels as specified in ISO 4871^[9].

1.2 Types of noise and noise sources

The method specified in this International Standard is suitable for all types of noise (steady, non-steady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001.

The method specified in this International Standard is applicable to all types and sizes of noise sources.

NOTE Throughout this International Standard the words “machine” and “source under test” are used to represent either a machine or a piece of equipment.

1.3 Test environment

The type of test environment influences the accuracy of the determination of emission sound pressure levels. For this International Standard, any room meeting prescribed requirements is applicable. These requirements on the room are less strict than those of ISO 11201^[16], in particular regarding the acoustical quality of the environment.

1.4 Work station and other specified positions

This International Standard is applicable to work stations and other specified positions where emission sound pressure levels are to be determined.

Appropriate positions where measurements may be made include the following:

1. work station located in the vicinity of the source under test; this is the case for many industrial machines and domestic appliances;

2. work station within a cab which is an integral part of the source under test; this is the case for many industrial trucks and earth-moving machines;

3. work station within a partial or total enclosure (or behind a screen) supplied by the manufacturer as an integral part of the source under test;

4. work station partially or totally enclosed by the source under test - this situation may be encountered with some large industrial machines;

5. bystander positions occupied by individuals not responsible for the operation of the source under test, but who may be in its immediate vicinity, either occasionally or continuously;

6. other specified positions, not necessarily work stations or bystander positions.

The work station may also lie on a specified path along which an operator moves (see 10.4).