13.140 噪声(与人有关的) 标准查询与下载
共找到 436 条与 噪声(与人有关的) 相关的标准，共 30 页
Scope is not provided for this standard
Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels
- ICS
- 13.140
- CCS
- 发布
- 2015-12-21
- 实施
Scope is not provided for this standard
Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz
- ICS
- 13.140
- CCS
- 发布
- 2015-12-21
- 实施
Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone audiometry (IEC 60645-1:2012); German version EN 60645-1:2015
- ICS
- 13.140
- CCS
- N65
- 发布
- 2015-11
- 实施
This International Standard specifies combinations of sound pressure levels and frequencies of pure continuous tones which are perceived as equally loud by human listeners. The specifications are based on the following conditions: a) the sound field in the absence of the listener consists of a free progressive plane wave; b) the source of sound is directly in front of the listener; c) the sound signals are pure tones; d) the sound pressure level is measured at the position where the centre of the listener's head would be, but in the absence of the listener; e) listening is binaural; f) the listeners are otologically normal persons in the age range from 18 years to 25 years inclusive. The data are given in graphical form in Annex A and in numerical form in Annex B for the preferred frequencies in the one-third-octave series from 20 Hz to 12 500 Hz, inclusive, in accordance with ISO 266.
Acoustics -- Normal equal-loudness-level contours
- ICS
- 13.140
- CCS
- 发布
- 2015-09-03
- 实施
This International Standard specifies a method for calculating the expected noise-induced permanent threshold shift in the hearing threshold levels of adult populations due to various levels and durations of noise exposure; it provides the basis for calculating hearing disability according to various formulae when the hearing threshold levels at commonly measured audiometric frequencies, or combinations of such frequencies, exceed a certain value. NOTE 1 This International Standard does not specify frequencies, frequency combinations, or weighted combinations to be used for the evaluation of hearing disability; nor does it specify a hearing threshold level (fence) which it is necessary to exceed for hearing disability to exist. Quantitative selection of these parameters is left to the user. All sound pressure levels stated in this International Standard do not consider the effect of hearing protectors which would reduce effective exposure levels and modify the spectrum at the ear. The measure of exposure to noise for a population at risk is the noise exposure level normalized to a nominal 8 h working day, LEX,8h, for a given number of years of exposure. This International Standard applies to noise at frequencies less than approximately 10 kHz which is steady, intermittent, fluctuating, irregular. Use of this International Standard for sound pressures exceeding 200 Pa (140 dB relative to 20 µPa) is recognized as extrapolation. Formulae are presented to calculate the hearing loss, including statistical distribution, at a range of audiometric frequencies due to exposure to noise as a function of level of noise exposure and duration of exposure (in years). The formulae do not distinguish between male and female populations. NOTE 2 Although the models of hearing loss are based on data assumed to stem primarily from populations exposed to occupational noise, they may be used, with some caution, for estimating the effects of comparable non-occupational and combined exposures. NOTE 3 The prediction method presented is based primarily on data collected with essentially broadband, steady, non-tonal noise. To calculate hearing threshold levels and the risk of acquiring hearing loss due to noise exposure, it is necessary to make use of a comparable population. This International Standard contains a definition of a highly screened otologically normal population (in accordance with ISO 7029) and three examples of unscreened populations of three typical industrialized societies. The users of this International Standard may choose a comparable population according to their particular requirements. NOTE 4 All data and procedures presented in this International Standard are based on deliberate simplifications of experimental data where the daily sound exposure duration did not exceed 12 h. The resulting approximations restrict the validity to the stated ranges of the variables, percentages, sound exposure levels, and frequency ranges. This International Standard is based on statistical data and therefore cannot be applied to the prediction or assessment of the hearing loss of individual persons except in terms of statistical probabilities.
Acoustics -- Estimation of noise-induced hearing loss
- ICS
- 13.140
- CCS
- 发布
- 2015-09-03
- 实施
This part of ISO 11690 deals with the technical aspects of noise control in workplaces. The various technical measures are stated, the related acoustical quantities described, the magnitude of noise reduction discussed and the verification methods outlined. This part of ISO 11690 deals only with audible sound. NOTE 1 Annex K lists relevant International Standards and other literature on noise control measures.
Acoustics -- Recommended practice for the design of low-noise workplaces containing machinery -- Part 2: Noise control measures
- ICS
- 13.140
- CCS
- 发布
- 2015-09-03
- 实施
This International Standard specifies a method for measuring the spatial sound distribution curve(s) of a given workroom. A method is given for determining, from the measured data, two descriptors of the acoustical performance of a workroom regarding noise control: i.e. the excess of sound pressure level with respect to a free field, and the sound pressure level decay per distance doubling. This International Standard does not deal with assessment of the acoustical quality with respect to speech communication or other psychological factors. This International Standard is applicable to workrooms of any shape and any dimensions provided that the number of microphone positions allows the regression calculation to be performed.
Acoustics -- Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance
- ICS
- 13.140
- CCS
- 发布
- 2015-09-03
- 实施
Acoustics — Description, measurement and assessment of environment noise — Part 1: Basic quantities and assessment procedures
- ICS
- 13.140
- CCS
- 发布
- 2015-08-05
- 实施
Acoustics — Description, measurement and assessment of environment noise — Part 1: Basic quantities and assessment procedures
- ICS
- 13.140
- CCS
- Z32
- 发布
- 2015-08-05
- 实施
Electroacoustics - Audiometric equipment - Part 1 : equipment for pure-tone audiometry
- ICS
- 13.140
- CCS
- N65
- 发布
- 2015-04-25
- 实施
- 2015-04-25
This part of ISO 8253 specifies basic methods for speech recognition tests for audiological applications. In order to ensure minimum requirements of precision and comparability between different test procedures including speech recognition tests in different languages, this part of ISO 8253 specifies requirements for the composition, validation and evaluation of speech test materials, and the realization of speech recognition tests. This part of ISO 8253 does not specify the contents of the speech material because of the variety of languages. Furthermore, this part of ISO 8253 also specifies the determination of reference values and fulfilment requirements for the realization and manner of presentation. This part of ISO 8253 specifies procedures and requirements for speech audiometry with the recorded test material being presented by air conduction through an earphone, or from a loudspeaker for sound field audiometry. Methods for using noise either for masking the non-test ear or as a competing sound are described. Some test subjects, for example children, can require amended test procedures not specified in this part of ISO 8253. Specialized tests such as those used for evaluating directional hearing and dichotic hearing are outside the scope of this part of ISO 8253.
Acoustics- Audiometric test methods- Part3: Speech audiometry
- ICS
- 13.140
- CCS
- 发布
- 2015-04-09
- 实施
Acoustics — Normal equal-loudness level contours
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — Reference zero for the calibration of audiometric equipment — Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — Reference zero for the calibration of audiometric equipment — Part 3: Reference equivalent threshold force levels for pure tones and bone vibrator
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — The construction and calibration of speech intelligibility tests
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — Reference zero for the calibration of audiometric equipment — Part 4: Reference levels for narrow-band masking noise
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — Audiometric test methods — Part 1: Basic pure tone air and bone conduction threshold audiometry
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — Reference zero for the calibration of audiometric equipment — Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
Acoustics — The construction and calibration of speech intelligibility tests
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under freefield and diffuse-field listening conditions
- ICS
- 13.140
- CCS
- 发布
- 2014-12-31
- 实施
- 2014/12/31
