EN 61672-2:2013/A1:2017

Overview

EN 61672-2:2013/A1:2017 is a European standard published by CLC under the framework of electroacoustics, specifically focusing on sound level meters. This amendment-part of the IEC 61672 series-pertains to Part 2: Pattern evaluation tests, which are essential for assessing the performance and conformity of sound level meters used for noise measurement and acoustic analysis. The standard ensures that these instruments meet stringent testing criteria to guarantee accurate and reliable sound level measurements in various environments.

Updated and approved in 2017, this amendment integrates the latest test methods, including electromagnetic compatibility (EMC) testing with transverse electromagnetic (TEM) waveguides. EN 61672-2:2013/A1:2017 aligns with international best practices and supports consistent application across CENELEC member countries, facilitating harmonized standards for noise monitoring and regulatory compliance.

Key Topics

• Pattern Evaluation Tests
  The standard specifies a series of evaluation tests for sound level meters to verify their design and functional patterns before being put into production or distribution. This ensures repeatability and reliability in measuring acoustic signals.

• Electromagnetic Compatibility (EMC)
  Incorporates testing methods from IEC 61000-4-20:2010, focusing on emission and immunity tests using Transverse Electromagnetic (TEM) waveguides. These EMC tests ensure that sound level meters operate correctly in electromagnetic environments without undue interference.

• Radio-Frequency Immunity Tests
  EN 61672-2:2013/A1:2017 extends standard radio-frequency testing by allowing alternative test methods with TEM waveguides, maintaining strict performance criteria across specified frequency ranges and test step sizes.

• Compliance and Implementation Dates
  Requires mandatory national adoption by February 2018, with conflicting national standards to be withdrawn by May 2020, ensuring timely harmonization across Europe.

• Multilingual Official Versions
  Published in English, French, and German, with authorized translations available via CENELEC members, supporting wide accessibility.

Applications

• Environmental Noise Monitoring
  Certified sound level meters evaluated under EN 61672-2:2013/A1:2017 are widely used in outdoor and indoor noise assessment studies, including urban planning and noise pollution control.

• Occupational Health and Safety
  Ensures that devices measuring workplace noise exposure provide consistent and reliable data critical for protecting employee hearing and meeting regulatory limits.

• Product Certification and Quality Assurance
  Manufacturers use this standard to validate new sound level meter designs, improving market acceptance and compliance with European directives.

• Research and Development
  Laboratories conducting acoustic instrument R&D utilize the defined test methods to benchmark and improve sound measurement equipment.

• Electromagnetic Immunity Testing
  Sound level meters undergo rigorous EMC testing to ensure performance stability in environments with radio-frequency interference, important for installations near radio transmitters and electrical installations.

Related Standards

• EN 61672-1:2013 – Specification for sound level meters including performance characteristics, complementing Part 2 pattern evaluation tests.

• IEC 61000-4-20:2010 – Electromagnetic compatibility standard detailing testing and measurement techniques for emission and immunity using TEM waveguides, referenced in the amendment for EMC testing.

• EN 61672-3 – Covers periodic verification procedures applicable after initial pattern evaluation.

• Electroacoustics (ICS 17.140.50) – The international classification that includes various standards and guidelines for acoustic instrumentation and testing.

By adhering to EN 61672-2:2013/A1:2017, organizations ensure that sound level meters achieve a high standard for pattern evaluation, electromagnetic immunity, and overall reliability, supporting accurate noise measurement critical for environmental protection, public health, and regulatory compliance. For comprehensive details and implementation guidance, access the official CENELEC or IEC publications.