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Alternative sign. Division 2.2 Toxic gases – Gases which: are known to be so toxic or corrosive to humans as to pose a hazard to health; or; are presumed to be toxic or corrosive to humans because they have an LC 50 value equal to or less than 5000 ml/m 3 (ppm). e.g. hydrogen cyanide. Division 2.3
Consider the first triangular diagram below, which shows all possible mixtures of methane, oxygen and nitrogen. Air is a mixture of about 21 volume percent oxygen, and 79 volume percent inerts (nitrogen). Any mixture of methane and air will therefore lie on the straight line between pure methane and pure air – this is shown as the blue air-line.
The sign is commonly referred to as a radioactivity warning sign, but it is actually a warning sign of ionizing radiation. Ionizing radiation is a much broader category than radioactivity alone, as many non-radioactive sources also emit potentially dangerous levels of ionizing radiation.
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(Photo by Jason Miller/Getty Images) (Jason Miller via Getty Images) Rocky Colavito, a Cleveland baseball All-Star popular enough that his trade led to a fan uproar and speculation of a curse ...
President-elect Donald Trump looks on during the UFC 309 event at Madison Square Garden on Nov. 16, 2024 in New York City. Credit - Chris Unger—Zuffa LLC via Getty Images On the campaign trail ...
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