Published 1978 by U.S. Dept. of Health, Education and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, for sale by the Supt. of Docs., U.S. Govt. Print. Off. in [Cincinnati, Ohio], Washington, D.C .
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|Other titles||Criteria for a recommended standard, occupational exposure to hydrogen fluoride, NIOSH criteria for a recommended standard, occupational exposure to hydrogen fluoride|
|Statement||[Division of Criteria Documentation and Standards Development, National Institute for Occupational Safety and Health].|
|Series||HEW publication -- no. (NIOSH) 76-143|
|Contributions||University of Washington. School of Public Health and Community Medicine.|
|LC Classifications||RC963.3 N385|
|The Physical Object|
|Pagination||vii, 181 p. :|
|Number of Pages||181|
Download Occupational exposure to hydrogen fluoride
Occupational Populations Occupational exposure to hydrogen fluoride or fluorine by inhalation exposure may occur in industries involved in the production of fluorine - containing chemicals, pharmaceuticals, high-octane gasoline, aluminum, and fluorescent light bulbs. Aqueous hydrogen fluoride is used for stainless steel pickling, glass etching.
Get this from a library. Occupational exposure to hydrogen fluoride: criteria for a recommended standard. [National Institute for Occupational Safety and Health.]. Jun 06, · Links with this icon indicate that you are leaving the CDC website. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. Recommendations are made for measures to protect the health and safety of workers exposed to hydrogen-fluoride () for up to a hour workday, hour workweek over a working lifetime.
Biological effects of exposure are described, and methods are given for sampling, analysis, and engineering control. Hydrogen fluoride The exposure standards do not represent ‘no-effect’ levels which guarantee protection to every worker.
Control measures Where there is a likelihood of worker exposure to hydrogen fluoride, steps should be taken to minimise that exposure as far as workable. A thorough examination of work practices is essential. or producing hydrogen fluoride as defined above and is emitted into the air concomitantly with HF or HF acids.
"Occupational exposure to hydrogen fluoride" is defined as exposure to HF at airborne concentrations at or above one-half the recommended time- weighted average (TWA) environmental limit. Apr 04, · Breathing hydrogen fluoride can damage lung tissue and cause swelling and fluid accumulation in the lungs (pulmonary edema).
Skin contact with hydrogen fluoride may cause severe burns that develop after several hours and form skin ulcers. Immediate signs and symptoms of exposure to hydrogen fluoride. Hydrogen Fluoride (Hydrofluoric Acid) Hazard Summary. Hydrogen fluoride is used in the production of aluminum and chlorofluorocarbons, and in the glass etching and chemical industries.
Acute (short-term) inhalation exposure to gaseous hydrogen fluoride can cause severe respiratory damage in humans, including. "Recommendations are made for measures to protect the health and safety of workers exposed to hydrogen-fluoride () for up to a hour workday, hour workweek over a working lifetime.
Biological effects of exposure are described, and methods are given for sampling, analysis, and engineering control." - NIOSHTIC Skeletal fluorosis from the point of view of an occupational exposure to fluorides in former Czechoslovakia. At the aluminium electrolytic production the aerosols with content of fluoride or hydrogen fluoride get to the indoor air of production halls from cryolite Na 3 AlF 6 and AlF hamptonsbeachouse.com by: 7.
SCIENCE REPORT A Review of the Toxicity and Environmental Behaviour of Hydrogen Fluoride in Air ii The Environment Agency is the leading public body protecting and improving the environment in England and Wales.
It’s our job to make sure that air, land and water are looked after by. SAFETY DATA SHEET Hydrogen fluoride ( %) Page 4 / 16 Version Revision Date 03/28/ Print Date 06/10/ specific for HF exposure is available. Remove all contaminated clothing while washing continuously. After thorough washing for at least 5 minutes, the burned area Occupational exposure to hydrogen fluoride book be immersed in.
It is of interest that the acute inflammatory response due to hydrogen fluoride exposure was found at conentrations that can occur in the atmosphere of Occupational exposure to hydrogen fluoride book primary aluminum industry.” SOURCE: Lund K, et al.
Increased CD3 positive cells in bronchoalveolar lavage fluid after hydrogen fluoride inhalation. Permissible Exposure Limits / OSHA Annotated Table Z-2; Note: This table only includes occupational exposure limits (OELs) for substances listed in the OSHA Z-2 Table. OELs for hundreds of additional substances have been adopted by Cal/OSHA, NIOSH, and hamptonsbeachouse.com organizations periodically make revisions to their OELs and so they should be consulted directly for their most current values.
This chemical inventory is OSHA's premier one-stop shop for occupational chemical information. It compiles information from several government agencies and organizations.
Information available on the pages includes: Chemical identification and physical properties Exposure limits Sampling information.
Hydrogen fluoride boils near room temperature, much higher than other hydrogen halides. Hydrogen fluoride is a highly dangerous gas, forming corrosive and penetrating hydrofluoric acid upon contact with moisture.
The gas can also cause blindness by rapid destruction of the corneasChemical formula: HF. Hydrogen fluoride and hydrofluoric acid must be used and handled in accordance with applicable risk management practices.
The U.S. Occupational Safety & Health Administration (OSHA) has set guidelines and permissible exposure limits for workers in industries and facilities where hydrogen fluoride substances are used. The OSHA PEL (permissible. Sep 11, · On September 27,at pm, a hydrogen fluoride spill occurred in a manufacturing plant located at the 4th complex of the Gumi National Industrial Complex in Gumi City, South Korea.
The present study aimed to evaluate the psychological effects of the hydrogen fluoride spill on the members of the community and to investigate their relationships with physical symptoms and changes in Cited by: 1.
New or revised workplace exposure limits for 13 substances have been introduced from 17 January This latest version of EH40/ ‘Workplace exposure limits’ has been updated to include the new and revised workplace exposure limits (WELs) as introduced by the Carcinogens and Mutagens Directive (EU) / amending Directive (/37/EC).
SUMMARY OF TOXICITY. Hydrogen fluoride and its aqueous solutions present an acute hazard by inhalation or dermal exposure.
The primary target of airborne gaseous hydrogen fluoride is the respiratory tract; however, injury to distant organs may also occur because of absorption of. Unlike earlier reported studies, the present study includes working procedures involving welding in order to measure possible occupational exposure to decomposition products.
The measurements included hydrogen fluoride (HF), hydrogen chloride (HCl), phosgene (COCl 2) and volatile organic compounds (VOC). The exposures were assessed during work.
Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF.
Washington, DC: The National Academies Press. doi: / it is difficult to discount the potential of a causal relationship between occupational exposure to hydrogen fluoride and asthma.
Nov 30, · Nuisance level organic vapor and acid gas refers to concentrations not exceeding OSHA PEL or applicable government occupational exposure limits, whichever is lower.
Not NIOSH-approved for organic vapors or acid gases. Do not use for respiratory protection against organic vapors or acid gases (except hydrogen fluoride).5/5(2). Hydrofluoric acid (CAS # )is very aggressive physiologically because of the fluoride ion.
Both anhydrous hydrofluoric acid (hydrogen fluoride) and its solutions are clear, colorless liquids. When exposed to air, concentrated solutions and anhydrous hydrofluoric acid produce pungent fumes which are especially dangerous. Unless. When an employee was working onsite his personal monitor alarmed for hydrogen fluoride (HF).
The Recordkeeping Guidelines for Occupational Injuries and Illnesses, exposures to harmful substances, " in and of themselves, are not recordable under Part of the regulations. Response HF Exposure Question Sept Keywords. Apr 28, · Hydrofluoric Acid: What You Need to Know. Print. Incidents involving hydrogen fluoride, or hydrofluoric acid, are not common, but the consequences of exposure to.
immediately or shortly after exposure to Chromic Fluoride: * Contact can irritate and burn the skin and eyes. * Breathing Chromic Fluoride can irritate the nose and throat causing coughing and wheezing.
Chronic Health Effects The following chronic (long-term) health effects can occur at some time after exposure to Chromic Fluoride and can last for. A recently developed novel portable real-time hydrogen fluoride spectrometer was used with an aerosol PM 10 spectrometer under a PIMEX telemetric measurement strategy to visualize and identify simultaneous occupational air peak exposure events to hydrogen fluoride and PM 10 aerosol sub-fractions in aluminium smelter pot rooms using Søderberg or Prebake anode technologies.
Carbonyl Fluoride should change into clean clothing promptly. * Contaminated work clothes should be laundered by individuals who have been informed of the hazards of exposure to Carbonyl Fluoride.
* Eye wash fountains should be provided in the immediate work area for emergency use. * If there is the possibility of skin exposure, emergency. The method is applicable to ceiling limit and short-term exposure limit (STEL) monitoring.
Jahr, J. A New Dual Filter Method for Separate Determination of Hydrogen Fluoride and Dustlike Fluorides in the Air. Staub-Reinhalt. der Luf, t32(6) 17 (). NIOSH/OSHA Occupational Health Guidelines for Chemical Hazards, U.S. Department of. Exposure to hydrogen fluoride: An experimental study in humans of concentrations of fluoride in plasma, symptoms, and lung function The present study showed a strong relation between inhaled.
Lund K, Ekstrand J, Boe J, et al. Exposure to hydrogen fluoride: an experimental. study in humans of concentrations of fluoride in plasma, symptoms, and lung function. Occup Environ Med 54(1) Lund K, Refsnes M, Ramis I, et al. Human exposure to hydrogen fluoride induces. HEALTH EFFECTS Exposure to ppm was very irritating and became uncomfortable after a few seconds.
At this concentration, the subjects reported that the eyes burned and felt as though they were covered by a film. Body Weight Effects. Hydrogen Fluoride. Pronounced weight loss shortly before death was observed in rats exposed to a. Hydrogen fluoride (CAS No. ) has an ACGIH Threshold Limit Value - Ceiling of 3 ppm (as fluoride), an OSHA Permissible Exposure Limit - Time Weighted Average of 3 ppm (as fluoride) and a revoked OSHA Permissible Exposure Limit - Short Term Exposure Limit (which is enforced by some State Right-To-Know programs) of 6 ppm (as fluoride.
Visit hamptonsbeachouse.com to get more information about this book, to buy it in print, The National Academies Press. doi: / and may be the result of the chemical’s deep penetration into the lungs as well as the production of hydrogen fluoride.
No data on exposure of humans to carbonyl fluoride were found. Occupational exposure limits, if available, are listed in Section 8. Substance Hydrogen Section 8. Exposure controls/personal protection Hand protection Based on the hazard and potential for exposure, select a respirator that meets the appropriate standard or.
occupational exposure to fluoride levels of about 1 mg/m3 may occur. Various types of coal contain fluoride levels in the range 4–30 g/kg (8,9).
In a study conducted in the United States of America, the maximum concentration of fluoride in the air was µg/m3. Hydrofluoric acid is a highly permeat solute with a permeability coefficient similar to that of water (P = x cm/s), and the transport of fluoride ion through biologic membranes occurs primarily by nonionic diffusion of molecular hydrogen hamptonsbeachouse.com by: occupational health investigations with even lower concentra-tions authorized committees deduce proposals for threshold limit values (occupational exposure limits) that shall become mandatory.
These threshold limit values are defined so that an employee Hydrogen arsenide, Hydrogen cyanide, Hydrogen fluoride, Hydrogen phosphide, Hydrogen.
Dec 03, · Clinical information is presented in a succinct narrative form to aid in understanding. Easy to use, in-depth, and comprehensive, Proctor and Hughes' Chemical Hazards of the Workplace, Fifth Edition offers occupational health physicians, nurses, industrial hygienists, and other safety professionals an invaluable and up-to-date resource.
Hazardous Combustion Products: Hydrogen fluoride, Sodium Oxides Section 6 Spill or Leak Procedures Steps to Take in Case Material Is Released or Spilled: Exposure to the spilled material may be irritating or harmful. Follow personal protective equipment recommendations found in Section 8 of this SDS.
Additional precautions may be.The U.S. Occupational Safety and Health Administration and the National Institute for Occupational Safety and Health have established occupational exposure limits for hydrogen chloride at a ceiling of 5 ppm (7 mg/m 3), and compiled extensive information on Beilstein Reference: Treatments for hydrofluoric acid exposure are designed to neutralize the fluoride ion and prevent systemic toxicity.
Primarily, the wound should be copiously irrigated for 30 minutes. If the concentration of exposure is less than 20% or the duration of exposure is minimal, this .