What is BS EN 61672-3- Electroacoustics for sound level meters about?
BS EN 61672-3 is a safety standard on sound level meters.
BS EN 61672-3 describes procedures for periodic testing of time-weighting, integrating-averaging, and integrating sound level meters that were designed to conform to the class 1 or class 2 specifications of the second edition of IEC 61672-1.
BS EN 61672-3 describes periodic tests that apply to sound level meters for which the manufacturer claims conformance to the specifications of the second edition of IEC 61672-1.
BS EN 61672-3 also describes the periodic tests, that apply to sound level meters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals in accordance with the test procedures of the second edition of IEC 61672-2.
Note 1: In BS EN 61672-3, references to IEC 61672-1, IEC 61672-2, and IEC 61672-3 refer to the second editions unless stated otherwise.
Note 2: Procedures for the periodic testing of sound level meters designed to conform to the specifications of IEC 61672-1:2002 were given in IEC 61672-3:2006.
Note 3: The extent of the tests in BS EN 61672-3 is deliberately restricted to the minimum considered necessary for periodic tests.
Who is BS EN 61672-3- Electroacoustics for sound level meters for?
BS EN 61672-3 on Electroacoustics for sound level meters is relevant to:
- Manufacturers of sound level meters
- Designers of sound level meters
- Manufacturers of calibrators
- Periodic testing authorities
- Electrical engineers
Why should you use BS EN 61672-3 - Electroacoustics for sound level meters?
A sound level meter is an instrument that is designed to measure sound levels in a standardized way. Periodic tests shall be performed within the following ranges of environmental conditions:
- 80 kPa to 105 kPa for static air pressure
- 20 °C to 26 °C for air temperature
- 25 % to 70 % for relative humidity
BS EN 61672-3 aims to ensure that periodic testing is performed in a consistent manner by all laboratories. The purpose of periodic testing is to assure the user that the performance of a sound level meter conforms to the applicable specifications of IEC 61672-1 for a limited set of key tests and for the environmental conditions under which the tests were performed. BS EN 61672-3 specifies the acceptance limits and maximum-permitted uncertainties which forms a basis for the evaluation of the contribution of a specific filter or filter set to total measurement uncertainty. Actual and maximum-permitted uncertainties of measurement are determined for a coverage probability of 95 percent.
By applying, BS EN 61672-3 you can learn about the periodic tests for sound level meters which can be helpful for your business.
