Download or read book Development of Hearing Conservation Standards for Hazardous Noise Associated with Diving Operations written by Paul Francis Smith and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Hearing Conservation Standards for Hazardous Noise Associated with Diving Operations written by United States. Department of the Navy. Naval Submarine Medical Research Laboratory and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a General Hearing Conservation Standard for Diving Operations Research on Hearing Conservation for Exposure to Noise in Dry Hyperbaric Environments I Basic Considerations and Preliminary Experiments written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Navy needs to control noise exposure in hyperbaric chambers and diving helmets but the applicability of existing hearing-conservation standards to those environments is uncertain. Consequently, a program of research has been undertaken to develop suitable control measures. The specific goals of the research described in this report were to develop means of insuring accurate calibrations of microphones and earphones in hyperbaric environments, to determine the feasibility of measuring valid auditory thresholds in the NSMRL hyperbaric facility, and to obtain preliminary data bearing on the effects of noise in compressed air on the ear. Condenser microphones were calibrated in compressed air to 10 atmospheres and the results were highly similar to previous studies. Providing care is used in handling them, and calibration are preformed in suitable gas it should not be necessary to calibrate condenser micro-phones in diving environments more than once a year for routine noise measurement (sound survey) purposes. Calibration studies should be undertaken to determine the performance of ceramic microphones that are less expensive and more rugged than condenser microphones for use in compressed air environments. Several earphones were also calibrated in compressed air but the results were not consistent for most earphones and instrumentation for in situ calibration of earphones on each dive should be developed. However, careful selection of earphones and pre- and post experiment calibrations may be relied upon for experiments in compressed air. It was demonstrated that with minimal precaution, valid auditory threshold measurements can be obtained in the NSMRL hyperbaric chamber. The ear appears to be less sensitive to noise in compressed air at 3 atm than it is in air at 1 atm if sound is measured in terms of sound pressure.
Download or read book Development of a General Hearing Conservation Standard for Diving Operations written by Paul Francis Smith and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearing and Underwater Noise Exposure written by Paul F. Smith and published by . This book was released on 1985 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exposure of divers to intense noise in water is increasing, yet there is no general hearing conservation standard for such exposures. This paper reviews three theories of underwater hearing as well as empirical data in order to identify some requirements that an underwater conservation standard must meet. Among the problems considered are hearing sensitivity in water, the frequency and dynamic ranges of the water-immersed ear, and nonauditory effects of underwater sound. It is concluded that: first, no well developed theoretical basis exists for extrapolating hearing conservation standards for airborne noise to the underwater situation; second, the empirical data on underwater hearing suggest that the frequency range covered by an underwater hearing conservation standard must be broader than is the case in air; third, in order to establish a general hearing conservation standard for underwater noise exposure further research is required on the dynamic range of the ear in water; fourth, underwater noise exposure may involve hazards to other body systems than the ear; and fifth, some exposure conditions may interfere with job performance of divers. Keywords: Deafness, Sonar, Noise, Sound, Ultrasound, Infra-sound, Stress(Physiological), Hazards, Diving.
Download or read book Occupational Hearing Loss Second Edition written by Robert Thayer Sataloff and published by CRC Press. This book was released on 1993-04-01 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of the standard reference in the field has been entirely rewritten and updated to reflect the latest methods for the diagnosis and treatment of hearing loss, and the most recent practices in initiating a hearing conservation programme.;Maintaining and enhancing the comprehensive presentation of the first edition, Occupational Hearing Loss: explicates specific problems of occupational hearing loss and hearing conservation, and the principles of measuring hearing loss; shows how to establish damage risk criteria; summarizes the problems of hearing conservation in the diving industry; offers an expanded list of questions to be used when taking the histories of patients with otological complaints; explaines the audiogram and its interpretation, including information about masking, and updates computerized audiometry; supplies new information about brain stem evoked-response audiometry, acoustic emission testing and other special hearing tests; delineates the causes of conductive hearing loss and their management; and discusses legislative and compensatory aspects of hearing loss, and gives in-depth information about calculating hearing impairment.;With over 1000 literature citations, tables and figures, Occupational Hearing Loss should be of use to to occupational physicians, audiologists, health and safety engineers, industrial hygienists, otolaryngologists, residents, trial attorneys, judges, and upper-level undergraduate and graduate students in these disciplines.
Download or read book Temporary Auditory threshold Shifts Induced by Twenty five minute Continuous Exposures to Intense Tones in Water written by Paul Francis Smith and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occupational Hearing Loss written by Robert Thayer Sataloff and published by CRC Press. This book was released on 2006-04-24 with total page 1007 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in clear and accessible language, Occupational Hearing Loss provides a comprehensive overview of the hazards of occupational noise exposure, causes of hearing loss, testing of hearing, criteria to distinguish occupational hearing loss, and more. This third edition features expanded discussion of topics such as autoimmune inner ear disease and diagnosing occupational hearing loss. It includes new chapters on auditory evoked potentials, sudden sensorineural hearing loss, malignancies of the ear, otologic complications of scuba diving, and hearing in dogs. This text also contains updated and revised material on auditory processing disorders, systemic causes of hearing loss, and more.
Download or read book Diving for Science 1990 written by Walter C. Jaap and published by . This book was released on 1990 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling Impulse Noise Hazards Programmatic Model for Developing Validated Exposure Standards written by and published by . This book was released on 1986 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blast producing weapons such as artillery cannons, mortars, and rockets can produce serious hearing loss among combat troops. Effective control of the risks of hearing loss requires realistic, valid standards for noise hazard evaluation and materiel design. Unfortunately, current Army standards for impulse noise are neither founded on a thorough scientific database nor validated for operational scenarios. These limitations make it difficult to balance the requirement for improved weapons against the need to protect crewmembers' hearing. In support of the Army's Health Hazard Assessment Program, A multiphase research model has been developed to provide a scientific foundation for valid impulse noise standards. The model constitutes a blueprint of the programmatic building blocks required to achieve the ultimate goal of realistics, effective standards applicable to a broad spectrum of weapons. Laboratory and field research methods are used to establish a systematic, comprehensive database relating auditory injury to critical noise parameters. The model culminates in validation of new standards under realistic field conditions. The new noise exposure standards can be translated into hearing conservation standards, materiel design standards, and noise hazard assessment procedures.
Download or read book Scientific Basis of Noise induced Hearing Loss written by Alf Axelsson and published by . This book was released on 1996 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Corps Hearing Conservation Program written by United States. Marine Corps and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise A Hazard to Divers and Hyperbaric Chamber Personnel written by James K. Summitt and published by . This book was released on 1971 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative information describing ambient noise in the diving environment is almost non-existent. Sensorineural hearing deficits that have been observed in some diving groups have been attributed to previous noise exposure in non-diving situations such as exposure to small arms fire, engine room noise or flight deck noise. This report describes a series of experiments conducted at the Navy Experimental Diving Unit to determine the sound level in a variety of helmet diving and hyperbaric chamber situations from the surface to a depth of 200 feet. The data is defined in terms of the hearing damage risk criteria currently in use by the Navy. Results indicate that operations involving both diving helmets and hyperbaric chambers frequently expose personnel to hazardous levels of noise depending on the length of time of the exposure. Three cases of temporary sensorineural hearing loss thought to be related to noise exposure during air helmet dives are also presented. (Author).
Download or read book Bove and Davis Diving Medicine written by Alfred A. Bove and published by Saunders. This book was released on 2004 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers basic diving physiology; the pathophysiology of decompression sickness; maritime toxicology; assessment of fitness for diving; special considerations for female, elderly, and pediatric divers; diving-related problems in people with pre-existing medical conditions such as pulmonary, cardiac, and neurologic disease, and much more, with new chapters on the kinetics of intert gas, marine poisoning and intoxication, and diabetes and diving.
Download or read book Federal Register Index written by and published by . This book was released on 1981 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register Annual Index written by and published by . This book was released on 1977 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
