STN EN ISO 389-7
| Name: | STN EN ISO 389-7 |
| Validity: | Valid |
| Number of pages: | 22 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Akustika. Referenčná nula na kalibrovanie audiometrického zariadenia. Časť 7: Referenčná prahová hladina počutia v podmienkach voľného a difúzneho poľa (ISO 389-7: 2019) |
| English title | Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019) |
| Release Date: | 01. 03. 2020 |
| Date of withdrawal: | |
| ICS: | 13.140 |
| Sorting character/National clasification code | 01 1630 |
| Level of incorporation: | idt EN ISO 389-7:2019, idt ISO 389-7:2019 |
| Official Journal | 02/20 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 389-7:2006-04 (01 1630) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions. a) The sound field in the absence of the listener consists of either a free progressive plane wave (free field) or a diffuse sound field, as specified in ISO 8253-2. In the case of a free field, the source of sound is directly in front of the listener (frontal incidence). b) The sound signals are pure (sinusoidal) tones in the case of free-field conditions and one-third-octave bands of (white or pink) noise in the case of diffuse-field conditions. c) The sound pressure level is measured in the absence of the listener at the position where the centre of the listener's head would be. d) Listening is binaural. |
| Preview: | Náhľad normy (PDF) |