標準號：DIN EN ISO 11904-2-2005
中文標準名稱：聲學.從接近耳朵的聲源處測定聲排放強度.第2部分:利用人體模型技術
英文標準名稱：Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2004); German version EN ISO 11904-2:2004
標準類型：Z32
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Z32
國際標準分類號：17.140.20;33.160.50
適用范圍：DIN EN ISO 11904-2 specifies a basic frame work measurement method for sound immissions from sound sources placed close to the ear. The measurements are carried out with a manikin, equipped with ear simulators including microphones, as specified in ITU-T P.58. The measured values are subsequently converted into corresponding free-field or diffuse-field levels. The results may be given as free-field related or diffuse-field related equivalent continuous A-weighted sound pressure levels. The technique is denoted manikin-technique. DIN EN ISO 11904-2 may be applied to exposure from sources close to the ear, for example during equipment tests or at the work place by e. g. earphones or hearing protectors with audio communication facilities.#,,#