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 Welcome 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 352-1:2020 General Requirements for Ear muffs
  • EN 352-2:2020 General Requirements for Ear plugs
  • EN 352-3:2020 General Requirements for Cap-mounted ear muffs
  • EN 352-4:2020 Level dependent ear muffs
  • EN 352-5:2020 Active noise control ear muffs
  • EN 352-6:2020 Ear muffs with an audio input
  • EN 352-7:2020 Level dependent ear plugs
  • EN 352-8:2020 Entertainment ear muffs
  • EN352-9:2020 Earplugs with an Electrical Audio Input
  • EN352-10:2020 Entertainment Audio Earplugs
  • Click here for Accreditation Documents