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Respirator user training 1930s

Respirator User Training 1930s This clip is part of an early respirator training film. Today in the US, employer must provide training to employees who are required to use respirators. The training must be comprehensive, understandable, and be done, at least, annually, and more often if necessary. This training should include: 1) why the respirator is necessary and how improper fit, use, or maintenance can compromise its protective effect; 2) the limitations and capabilities of the respirator; 3) how to inspect, put on and remove, use and check the seals (for tight-fitting types); 4) how to maintain and store the respirator; 5) how to recognize medical signs and symptoms that may limit or prevent effective use of a respirator; and, 6) the general requirements of OSHA's respirator standard, 29 CFR 1910.134. For examples of good respirator training, go to the Online Curricula Catalog of the National Institute for Environmental Health Sciences (NIEHSWorker Education and Training Program (WETP) at tools.niehs.nih.gov . Since 1987, the NIEHS WETP has supported the development of curricula and the initiation of training programs throughout the country to help meet Occupational Safety and Health Administration (OSHA) requirements under 29 CFR 1910.120, Hazardous Waste Operations & Emergency Response (HAZWOPER). This is clipped from the 1940s film, The Air We Breathe, a ppromotional documentary from the Mine Safety Appliances Company (MSA) on the importance of the air respirator to industrial health and safety ...
Category: Education     Length: 00:01:22
Tags: Respirator mask .

Steel industry 1944 youngstown, ohio

Steel Industry 1944 Youngstown, Ohio An good look at steelmaking as done during WWII, long before OSHA and EPA. For most iron-making, the essential features are coke ovens and the blast furnace, where coke is produced from coal and iron ore is melted (reduced) to produce pig iron, respectively. The furnace is charged from the top with iron ore, coke and limestone; hot air, frequently enriched with oxygen, is blown in from the bottom; and the carbon produced from the coke transforms the iron ore into pig iron containing carbon, with the generation of carbon monoxide and carbon dioxide. The limestone acts as a flux. At a temperature of 1600°C, the pig iron melts and collects at the bottom of the furnace. The furnace is tapped (ie the pig iron is removed) periodically, and the pig iron is cast into pigs for later use (eg in foundries), or is poured into ladles where it is transferred, still molten, to the steel-making plant. The purpose of steel-making operations is to refine the pig iron which contains large amounts of carbon and other impurities. The carbon content must be reduced, the impurities oxidized and removed, and the iron converted into a highly elastic metal that can be forged and fabricated. Alloying agents may be added at this stage. Different types of melting furnace are used in this process. Steel is cast into slabs, billets, bars, ingots and other shapes. Subsequent steps may include scarfing, pickling, annealing, hot and cold rolling, extrusion, galvanizing, surface coating, cutting and ...
Category: Education     Length: 00:07:24
Tags: steel iron foundry .

Industrial hygiene research on hazards of changing air pressure wwii 1941 usphs

Industrial Hygiene Research on Hazards of Changing Air Pressure WWII 1941 USPHS Caisson Disease is a term coined by Andrew Smith to describe the illness that he encountered among workers during the construction of the Brooklyn Bridge. Although it is more commonly called decompression sickness (DCS) today, caisson disease remains a popular colloquialism. It is generally employed to differentiate the industrial/construction decompression sickness from the diving and altitude DCS. Examples include mining, tunnelling, and bridge-building. Regardless of the name, the disease remains the same. It is too much nitrogen disease. Normally, tissues at a constant pressure are saturated with a certain amount of dissolved inert nitrogen. If ambient pressure drops, there is a concomitant fall in the nitrogen pressure. Dysequilibrium ensues and tissue supersaturation takes place. As a result, the tissues tend to release "excess" nitrogen to the vascular system for delivery to the lungs where it is exhaled into the atmosphere. Thus, a new equilibrium is established. Unfortunately, the change in pressure can exceed the body's capability to release the extra nitrogen. Once a critical point is reached the nitrogen can no longer remain dissolved and bubbles form. These bubbles may develop in the tissues themselves or in the vasculature or, for that matter, may simply grow from circulating micronuclei (microbubbles) already present. In any event, the myriad of symptoms caused by these bubbles define decompression sickness. Decompression sickness has been clinically ...
Category: Education     Length: 00:00:39
Tags: social security Industrial hygiene .

Ergonomics a worker solution from 1944

Ergonomics a worker solution from 1944 A clip describing a WWII era union worker making his workplace safer and more productive for the war effort. Workers often have good suggestions for improving their jobs. This clip is from the US government film Suggestion available at the Internet Archives
Category: Science & Technology     Length: 00:00:30
Tags: industrial ergonomics OSHA .

Respirator testing and certification 1934

Respirator Testing and Certification 1934 This clip shows the testing of a new air-purifying respirator for approval by the US Bureau of Mines in 1934. Currently all respirators used in US workplaces must be similarly testing and certified by NIOSH (National Institute for Occupational Safety and Health). NIOSH has administered the respirator certification program since 1972, and traces its origins to the early years of the US Bureau of Mines. The Bureau of Mines was created within the Dept of Interior in 1910, and began the development of Schedules covering the design, testing and evaluation of mine emergency respiratory protection equipment. Since then schedules have been published for self contained breathing apparatus for use in mine rescue; gas masks and Air Purifying Respirators to be used by escaping miners during an emergency; airline respirators; gas and vapor-removal (chemical cartridge); and dust-filtration (particulate). The 1969 Federal Mine Health and Safety Act mandated joint approval of respirators by the Departments of Interior and Health, Education and Welfare, and the 1970 Occupational Safety and Health Act created NIOSH. In 1972, NIOSH and the Bureau consolidated the various approval schedules into federal regulations under Title 30, Mineral Resources, of the Code of Federal Regulations. Administration of the respirator approval program was transferred to NIOSH from the US Bureau of Mines. The respirator approval program began to gain increased significance as regulations published by the OSHA ...
Category: Education     Length: 00:03:11
Tags: Respirator mask .

Preservation aviation superfund cleanup epa 2005

Preservation Aviation Superfund Cleanup EPA 2005 At this Superfund site in North Hollywood, California, two small warehouses were filled to overflowing with more than one million obsolete World War II aircraft gauges, many contaminated with radioactive Radium 226. Additional gauges were found in an outside storage yard in old wooden and cardboard boxes, many of which were leaking. The site was surveyed in 2004 for radiation, and then the gauges segregated into 3 waste streams. It was one of a series of sites involving radium-dial aircraft gauges to which EPA responded. This site was the largest found at that time. The large amount of debris, the poor condition of the site, and lack of security created an extreme fire hazard. Once all gauges were removed, the response teams conducted a detailed assessment of the warehouse buildings and grounds. Enough contamination remained in both areas to warrant removal of the warehouses and paved areas. Improper handling of radioactive materials in large and small industries can create extensive contamination of buildings, equipment, and land. These sites are not only dangerous but are expensive to clean up. www.epa.gov . For more information on radiation link to www.epa.gov . A good source of information on worker protection from radiation can be found at the US Department of Energy Office of Health, Safety and Security website at: www.hss.energy.gov . The entire 15 minute DVD, Preservation Aviation Superfund Cleanup, is available for free from the EPA at: www.ertvideo.org .
Category: Education     Length: 00:07:02
Tags: exposure Radiation radium .

Testing for cleanup of areas contaminated with blister agents us army 1942

Testing for Cleanup of Areas Contaminated with Blister Agents US Army 1942 During WWI, soldier on the chemical battlefield had to rely on their own senses (smell, and throat and nose irritation) to detect chemicals. Since most of the World War I chemical agents had identifiable unique odors, the sense of smell was the best detector of the presence of chemical agents. . Unfortunately, the sniff test was inaccurate for low levels of chemical vapor. In addition, after conducting the sniff test for several hours, a soldier would gradually lose his ability to detect low levels of mustard agent. Of course, in high levels of mustard agent, the sniff test was extremely dangerous. The need for a detection capability that could detect mustard agent already on a leaking chemical shell or other surfaces resulted in the concept of the detector crayon. Over 600000 packs of the crayons were procured during World War II. After the war, it was discovered that the crayon also reacted with nerve agents, turning yellow instead of blue. The Crayon was obsoleted in 1965. The British developed adetector paint for use on paper that could be stuck on the end of a bayonet and used as a probe. The Chemical Warfare Service took Detector Paint and applied it to light Bristol board, cut it up in small pieces, and bound them in a booklet form as an Agent Detector Paper in 1942. Over 1.1 million books of 25 sheets were procured during the World War II. Liquid Agent Detector Paper was obsoleted in 1963. For a historical look at the development of decontamination, go to the US ...
Category: Education     Length: 00:00:36
Tags: Blister agents mustard .

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