🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS ISO 26101-1:2021

BS ISO 26101-1:2021

$142.49

Acoustics. Test methods for the qualification of the acoustic environment – Qualification of free-field environments

Published By Publication Date Number of Pages
BSI 2021 32
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field.

This document specifies discrete-frequency and broad-band test methods for quantifying the performance of anechoic and hemi-anechoic spaces, defines the qualification procedure for an omni-directional sound source suitable for free-field qualification, gives details of how to present the results and describes uncertainties of measurement.

This document has been developed for qualifying anechoic and hemi-anechoic spaces for a variety of acoustical measurement purposes. It is expected that, over time, various standards and test codes will refer to this document in order to qualify an anechoic or hemi-anechoic space for a particular measurement. Annex D provides guidelines for the specification of test parameters and qualification criteria for referencing documents.

In the absence of specific requirements or criteria, Annex A provides qualification criteria and measurement requirements to qualify anechoic and hemi-anechoic spaces for general purpose acoustical measurements.

This document describes the divergence loss method for measuring the free sound field performance of an acoustic environment.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Allowable deviations from inverse square law
11 5 Measurement of free sound field performance
5.1 Divergence loss method
5.1.1 Principle
5.1.2 Instrumentation and measuring equipment
12 5.1.3 Location of test sound sources and microphone traverses
13 5.1.4 Test procedure
14 5.1.5 Expression of results
15 5.1.6 Measurement uncertainty
5.2 Information to be recorded
16 5.3 Information to be reported
17 Annex A (normative) Qualification criteria and measurement requirements
20 Annex B (normative) General procedure for evaluation of test sound source directionality
23 Annex C (informative) Measurement uncertainty
26 Annex D (informative) Guidelines for referring to this test method
28 Bibliography

Related products

BS ISO 26101-1:2021
$142.49