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Author: Department of Health and Human Services Publisher: Createspace Independent Publishing Platform ISBN: 9781496001597 Category : Technology & Engineering Languages : en Pages : 122
Book Description
In the Occupational Safety and Health Act of 1970, Congress declared that its purpose was to assure, so far as possible, safe and healthful working conditions for every working man and woman and to preserve our human resources. In this Act, the National Institute for Occupational Safety and Health (NIOSH) is charged with recommending occupational safety and health standards and describing exposure concentrations that are safe for various periods of employment-including but not limited to concentrations at which no worker will suffer diminished health, functional capacity, or life expectancy as a result of his or her work experience. By means of criteria documents, NIOSH communicates these recommended standards to regulatory agencies (including the Occupational Safety and Health Administration [OSHA]) and to others in the occupational safety and health community. Criteria documents provide the scientific basis for new occupational safety and health standards. These documents generally contain a critical review of the scientific and technical information available on the prevalence of hazards, the existence of safety and health risks, and the adequacy of control methods. In addition to transmitting these documents to the Department of Labor, NIOSH also distributes them to health professionals in academic institutions, industry, organized labor, public interest groups, and other government agencies. In 1972, NIOSH published Criteria for a Recommended Standard: Occupational Exposure to Noise, which provided the basis for a recommended standard to reduce the risk of developing permanent hearing loss as a result of occupational noise exposure [NIOSH 1972]. NIOSH has now evaluated the latest scientific information and has revised some of its previous recommendations. The 1998 recommendations go beyond attempting to conserve hearing by focusing on preventing occupational noise-induced hearing loss (NIHL). This criteria document reevaluates and reaffirms the recommended exposure limit (REL) for occupational noise exposure established by the National Institute for Occupational Safety and Health (NIOSH) in 1972. The REL is 85 decibels, A-weighted, as an 8-hr time-weighted average (85 dBA as an 8-hr TWA). Exposures at or above this level are hazardous. By incorporating the 4000-Hz audiometric frequency into the definition of hearing impairment in the risk assessment, NIOSH has found an 8% excess risk of developing occupational noise-induced hearing loss (NIHL) during a 40-year lifetime exposure at the 85-dBA REL. NIOSH has also found that scientific evidence supports the use of a 3-dB exchange rate for the calculation of TWA exposures to noise. The recommendations in this document go beyond attempts to conserve hearing by focusing on prevention of occupational NIHL. For workers whose noise exposures equal or exceed 85 dBA, NIOSH recommends a hearing loss prevention program (HLPP) that includes exposure assessment, engineering and administrative controls, proper use of hearing protectors, audiometric evaluation, education and motivation, recordkeeping, and program audits and evaluations. Audiometric evaluation is an important component of an HLPP. To provide early identification of workers with increasing hearing loss, NIOSH has revised the criterion for significant threshold shift to an increase of 15 dB in the hearing threshold level (HTL) at 500, 1000, 2000, 3000, 4000, or 6000 Hz in either ear, as determined by two consecutive tests. To permit timely intervention and prevent further hearing losses in workers whose HTLs have increased because of occupational noise exposure, NIOSH no longer recommends age correction on individual audiograms.
Author: Elliott H. Berger Publisher: AIHA ISBN: 1931504024 Category : Medical Languages : en Pages : 810
Book Description
Topics covered include fundamentals of sound, vibration and hearing, elements of a hearing conservation program, noise interference and annoyance, regulations, standards and laws.
Author: Aamina Ahmad Publisher: Bloomsbury Publishing ISBN: 1783192984 Category : Drama Languages : en Pages : 133
Book Description
Surrounded by lies and deceit how do you work out who is telling the truth? When highly decorated war hero, Colonel Tariq joins the intelligence agency, his rise to the top seems assured. But in his first case he discovers a CIA agent has killed a young prostitute and a diplomatic crisis erupts.As the two nations negotiate, angry mobs take to the streets and he is caught up in a national scandal. Tariq is instructed to eliminate the only witness and instigate a cover up, trapping him in a terrible moral dilemma. As his professional ambition and private life collide, he must make a life changing decision that will have far reaching consequences for the future of his family and his country.
Author: Owen K. C. Stephens Publisher: ISBN: 9780786936953 Category : Fantasy games Languages : en Pages : 0
Book Description
New rules for running a d20 Modern or d20 Future(TM) campaign with a cyberpunk twist. This new rules supplement provides everything players and Gamemasters need to create and run campaigns featuring cybernetics in the post-modern realm of cyberpunk fiction. Building on the "d20 Future" cybernetic rules, "d20 Cyberscape" includes rules for installing cybernetics and playing cyborgs, as well as new advanced classes and enhancements. "d20 Cyberscape" also features rules for magical and psionic cybernetics and virtual reality networks.
Author: Nathaniel Brice Publisher: Wentworth Press ISBN: 9781371487461 Category : History Languages : en Pages : 378
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Emeritus Professor of Enjglish John Holloway
Author: Emeritus Professor of Enjglish John Holloway
Author: Department of Health and Human Services
Author: Elliott H. Berger
Author: Aamina Ahmad
Author: Owen K. C. Stephens
Author: Kenneth R. Boff
Author: Kenneth Boff
Author: Prima Games
Author: Nathaniel Brice
Author: William Wellington Greener