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Standard threshold shift

Standard threshold shift (STS) An increase of 10 dB or more in a person s HTL in the 2000 to 4000 Hz range, significant because it represents loss of a significant proportion of hearing. [Pg.1478]

Temporary threshold shift (TTS) A temporary shift in hearing threshold level that goes away after the person has been in a quiet environment for a few hours. It is confirmed by an audiogram retest following a suspected standard threshold shift (STS) after at least 14 hours away from high levels of noise. [Pg.1481]

A vertical barrier erected along exposed edges of a floor opening, wall opening, ramp, platform, or runway to prevent the fall of an individual. See also Handrail. Standard Threshold Shift (STS)... [Pg.279]

STS Standard Threshold Shift or Signihcant Threshold Shift... [Pg.321]

Recordability based on audiometric zero and a standard threshold shift... [Pg.300]

A standard threshold shift (STS) is a change in hearing threshold, relative to an employee s baseline audiogram (hearing test), averaging 10 decibels (dB) or more at 2000, 3000, and 4000 hertz (Hz) in one or both ears. If an employee s audiogram reveals that a work-related STS has occurred in one or both ears, and the total hearing level is 25 decibels or more above audiometric zero in the same ears as the STS, the case is recordable. [Pg.300]

If a standard threshold shift (STS), defined as an average of 10 dBA or more at 2000, 3000, and 4000 Hz, occurs in either ear, the employer must follow certain procedru-es outlined in the standard, including notifying the affected employee in writing. Hearing loss cases that meet specific criteria must be recorded on the OSHA 300 log according to the recordkeeping requirements of 1904.10. [Pg.321]

Flelps identify workers receiving inadequate protection, leaving them at risk for standard threshold shifts (STS)... [Pg.19]

Quantitative measures of standard threshold shift (STS) and noise measurements are used for evaluating program effectiveness, but do not provide qualitative information about the processes that contributed to these data outcomes. [Pg.40]

See other pages where Standard threshold shift is mentioned: [Pg.102]    [Pg.72]    [Pg.245]    [Pg.730]    [Pg.355]    [Pg.357]    [Pg.358]    [Pg.1349]    [Pg.1350]    [Pg.1443]    [Pg.1443]    [Pg.455]    [Pg.455]    [Pg.427]    [Pg.130]    [Pg.313]    [Pg.315]    [Pg.315]    [Pg.53]    [Pg.211]    [Pg.663]    [Pg.663]    [Pg.40]   
See also in sourсe #XX -- [ Pg.9 , Pg.14 ]



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Threshold shift

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