ISO 11904-1:2002 PDF

Scope: This part of ISO 11904 specifies basic framework measurement methods for sound immission from sound sources placed close to the ear. These measurements are carried out with miniature or probe microphones inserted in the ear canals of human subjects. The measured values are subsequently converted into corresponding free-field or diffuse-field levels. The results are given as free-field related or diffuse-field related equivalent continuous A-weighted sound pressure levels. The technique is denoted the microphone-in-real-ear technique (MIRE technique). This part of ISO 11904 is applicable to exposure from sources close to the ear, for example during equipment tests or at the workplace by earphones or hearing protectors with audio communication facilities. This part of ISO 11904 is applicable in the frequency range from 20 Hz to 16 000 Hz.

ISO 11904-1:2002 Referenced Document

IEC 60065 Audio, video and similar electronic apparatus - Safety requirements*， 2024-04-17 Update
IEC 60268-7:1996 Sound system equipment - Part 7: Headphones and earphones
IEC 60601-1 Medical electrical equipment - ALL PARTS*， 2015-01-20 Update
IEC 60942 Electroacoustics - Sound calibrators*， 2017-11-29 Update
IEC 61094-1 Measurement microphones - Part 1: Specifications for laboratory standard microphones
IEC 61260 Amendment 1 - Electroacoustics - Octave-band and fractional-octave-band filters
IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications*， 2013-09-01 Update
ISO 8253-2:1992 Acoustics; audiometric test methods; part 2: sound field audiometry with pure tone and narrow-band test signals

2004 ISO 11904-1:2002/Cor 1:2004 Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 1: Technique using a microphone in a real ear (MIRE technique); Technical Corrigendum 1
2002 ISO 11904-1:2002 Acoustics - Determination of sound immission from sound sources placed close for the ear - Part 1: Technique using a microphone in a real ear (MIRE technique)