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Adjustable Wrench with 'BeCu' on the side, to show that it is made from beryllium copper. Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze, and spring copper, is a copper alloy with 0.5–3% beryllium. [1] Copper beryllium alloys are often used because of their high strength and good conductivity of both heat and ...
The signs and symptoms of acute beryllium pneumonitis usually resolve over several weeks to months, but may be fatal in 10 percent of cases, [1] and about 15–20% of cases may progress to chronic beryllium disease. [8] Acute beryllium poisoning approximately doubles the risk of lung cancer. [9]
At that time, most construction trades and industries were unaware of the potential risks associated with beryllium exposure. [42] It occasionally killed early workers in nuclear weapons design, such as Herbert L. Anderson. [43] The physicist W. W. Hansen who was instrumental in the development of the klystron also died of the disease in 1949.
Sep. 27—Eight electrical workers recently were exposed to toxic beryllium dust while removing ceiling tiles in a building at Los Alamos National Laboratory, the latest incident in a hazard the ...
Construction site safety is an aspect of construction-related activities concerned with protecting construction site workers and others from death, injury, disease or other health-related risks. Construction is an often hazardous, predominantly land-based activity where site workers may be exposed to various risks, some of which remain ...
Beryllium poisoning is poisoning by the toxic effects of beryllium, or more usually its compounds. It takes two forms: Acute beryllium poisoning, usually as a result of exposure to soluble beryllium salts; Chronic beryllium disease (CBD) or berylliosis, usually as a result of long-term exposure to beryllium oxide usually caused by inhalation.
Various examples of metal swarf, including a block of compressed swarf. Broken up chips are preferred over stringy drill chips. [1]Metal swarf, also known as chips or by other process-specific names (such as turnings, filings, or shavings), are pieces of metal that are the debris or waste resulting from machining or similar subtractive (material-removing) manufacturing processes.
When machining without coolant, swarf is usually very hot and can easily burn the machine operator. Machinists typically wear long pants, eye protection and other personal protective equipment for this reason. Some engineering materials such as beryllium are hazardous when finely divided and appropriate measures should be taken to prevent exposure.