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  2. Electrical safety standards - Wikipedia

    en.wikipedia.org/wiki/Electrical_safety_standards

    In 1994 were established Electrical Safety Foundation International non-profit organization dedicated exclusively to promoting electrical safety at home and in the workplace. [ 3 ] Standard 29 CFR 1910.269 – for electric power generation, transmission, and distribution, contained comprehensive regulations and addressed control of hazardous ...

  3. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    The hot gas has temperatures above 70 K, which was inferred from ammonia line ratios and appears to be closely associated with the innermost portions of the nuclear bar seen in CO. [190] NH 3 was also monitored by VLA toward a sample of four galactic ultracompact HII regions: G9.62+0.19, G10.47+0.03, G29.96-0.02, and G31.41+0.31.

  4. Sulfur dioxide - Wikipedia

    en.wikipedia.org/wiki/Sulfur_dioxide

    Sulfur dioxide is fairly soluble in water, and by both IR and Raman spectroscopy; the hypothetical sulfurous acid, H 2 SO 3, is not present to any extent. However, such solutions do show spectra of the hydrogen sulfite ion, HSO 3 −, by reaction with water, and it is in fact the actual reducing agent present: SO 2 + H 2 O ⇌ HSO 3 − + H +

  5. Cobalt - Wikipedia

    en.wikipedia.org/wiki/Cobalt

    In the US, the Occupational Safety and Health Administration (OSHA) has designated a permissible exposure limit (PEL) in the workplace as a time-weighted average (TWA) of 0.1 mg/m 3. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.05 mg/m 3, time-weighted average.

  6. DDT - Wikipedia

    en.wikipedia.org/wiki/DDT

    In the 1970s and 1980s, agricultural use was banned in most developed countries, beginning with Hungary in 1968 [68] [69] [70] – although in practice it continued to be used through at least 1970. [71] This was followed by Norway and Sweden in 1970, West Germany and the United States in 1972, but not in the United Kingdom until 1984.

  7. Hexane - Wikipedia

    en.wikipedia.org/wiki/Hexane

    Hexane (/ ˈ h ɛ k s eɪ n /) or n-hexane is an organic compound, a straight-chain alkane with six carbon atoms and the molecular formula C 6 H 14. [7]Hexane is a colorless liquid, odorless when pure, and with a boiling point of approximately 69 °C (156 °F).

  8. Hyperbaric medicine - Wikipedia

    en.wikipedia.org/wiki/Hyperbaric_medicine

    Hyperbaric medicine includes hyperbaric oxygen treatment, which is the medical use of oxygen at greater than atmospheric pressure to increase the availability of oxygen in the body; [8] and therapeutic recompression, which involves increasing the ambient pressure on a person, usually a diver, to treat decompression sickness or an air embolism by reducing the volume and more rapidly eliminating ...

  9. Halloween - Wikipedia

    en.wikipedia.org/wiki/Halloween

    The backlash to the tragedy was a tightening of regulations relating to safety, building codes and the frequency of inspections of attractions nationwide. The smaller venues, especially the nonprofit attractions, were unable to compete financially, and the better funded commercial enterprises filled the vacuum.