Your browser version is outdated. We recommend that you update your browser to the latest version.

elcome to Michael & Associates, Inc. - an Independent Psychoacoustics Laboratory

Accredited by the National Institute of Standards and Technology (NIST) National Laboratory Voluntary Accreditation Program (NVLAP), Lab number 100427. These accreditation criteria encompass the requirements of international standards ISO 17025. Accredited to perform testing to the following standards:

  • ANSI S12.6-2016 - Methods for Measuring the Real-Ear Attenuation of Hearing Protectors
  • ANSI S3.19-1974 - Method for the Measurement of Real-Ear Protection of Hearing Protectors and Physical Attenuation of Earmuffs
  • AS/NZ S1270:2002 - Acoustics—Hearing protectors
  • ANSI S12.42-2010 - Methods for the Measurement of Insertion Loss of Hearing Protection Devices in Continuous or Impulsive Noise Using Microphone-in-Real-Ear or Acoustic Test Fixture Procedures
  • EN 352-1 General Requirements for Ear muffs
  • EN 352-2 General Requirements for Ear plugs
  • EN 352-3 General Requirements for Cap-mounted ear muffs
  • EN 352-4 Level dependent ear muffs
  • EN 352-5 Active noise control ear muffs
  • EN 352-6 Ear muffs with an audio input
  • EN 352-7 Level dependent ear plugs
  • EN 352-8 Entertainment ear muffs
  • Click here for Accreditation Documnents