![]() ![]() Amendment of group heading filed 6-3-97 operative 7-3-97 (Register 97, No. Amendment filed 10-3-83 effective thirtieth day thereafter (Register 83, No. Repealer of Group 15 (Article 105, Sections 5095-5099) and new Group 15 (Article 105, Sections 5095-5100 and Appendices A-E) filed 6-28-82 effective thirtieth day thereafter (Register 82, No. NOTE: Authority and reference cited: Section 142.3, Labor Code.ġ. An instrument for the measurement of sound level. ![]() For use with this regulation, SLOW time response, in accordance with ANSI S1.4-1971 (R1976), is required. The scale used (for example, whether the value goes up in tens or hundreds) depends on the nature of the data being used and at which scale the map will tell the reader the most information. Ten times the common logarithm of the ratio of the square of the measured A-weighted sound pressure to the square of the standard reference pressure of 20 micropascals. Isolines should have equal intervals between them numerically. Measurements of an employee's noise dose or 8-hour time-weighted average sound level that the employer deems to be representative of exposures of other employees in the workplace. A physician specializing in diagnosis and treatment of disorders of the ear, nose and throat. For purposes of this regulation, a condition or disease affecting the ear, which should be treated by a physician specialist. Unit of measurement of frequency, numerically equal to cycles per second. A unit of measurement of sound level corrected to the A-weighted scale, as defined in ANSI S1.4-1971 (R1976), using a reference level of 20 micropascals (0.00002 Newton per square meter). Unit of measurement of sound level.ĭBA (Decibels-A-Weighted). A sound level of 90 decibels.ĭecibel (dB). The audiogram against which future audiograms are compared.Ĭriterion Sound Level. A professional, specializing in the study and rehabilitation of hearing, who is certified by the American Speech, Hearing and Language Association or licensed by a state board of examiners.īaseline Audiogram. A chart, graph, or table resulting from an audiometric test showing an individual's hearing threshold levels as a function of frequency.Īudiologist. An 8-hour time-weighted average of 85 decibels measured on the A-scale, slow response, or equivalently, a dose of fifty percent.Īudiogram. Agriculture, construction, and oil and gas well drilling and servicing operations are exempt from the provisions of Sections 5097 through 5100.Īction Level. Article 105 establishes requirements for controlling occupational exposures to noise. Control of Noise Exposure Return to index General Industry Safety OrdersĪrticle 105. ![]()
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