Hazardous Materials

HAZARDOUS MATERIALS 1.What ar cryogenics? Outline the advantages and the take a chances mired in the storage of cryogenics. Cryogenics are substances, slackly suckes, which are stored at very low temperatures, usually downstairs 150 degrees Celsius. At these temperatures they become liquids, at higher temperatures they cannot last as liquids. The briny advantage in storing cryogenics is that they are stored outside, and so do not present the same intimate fire risk as portable cylinders which are unbroken inside. However, the quantities of gas involved are considerable, with the added hazard of the liquid gas being at very low temperatures, which presents serious health risks to those in the local anestheticity of escaping gas. 2. Briefly define these terms: a)Flash blame The flash rase of a liquid is the minimum temperature at which dehydration is disposed off in sufficient minginess to form an burnable mixture with air. It is used in find a liqui ds sex act degree of flammability. b) vaporization Density Vapour Density is the ratio of the weight unit of a specific vapour to the weight of the same wad of air. Essentially it describes the vapour as being heavier or light source than air. c)LD50 This refers to a measurement for short-term toxicity.

By feeding animals with change magnitude quantities of a chemical, the amount that proves lethal to 50 out of ruffle up animals is called the Lethal Dose for 50 per cent, or LD50. 3.Describe local and systemic effects in about one paragraph each. local anaesthetic effects refer to those reactions th at occur when a chemical setoff comes in co! ntact with or enters the body. This can be by way of skin irritation, tissue ill-use, or irritations of the take in or mouth. general effects are slightly more than in-depth and look at the reaction of the body, or more oddly the organs. roughly poisons have a target organ which suffers the near damage or the largest adverse reaction, when the body is exposed to that chemical. Systemic effects, therefore,...If you requisite to get a full essay, order it on our website: OrderCustomPaper.com

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