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Widespread Materials:
The public is protected against exposure to such materials dispensed by the United States Atomic Energy Commission by a licensing procedure which requires that the recipients give evidence of their abilities to use the materials and dispose of them in a safe manner. When nuclear reactors used as power plants become widespread, potentially dangerous amounts of radioactivity may be located in or near populated areas. One of the primary considerations in reactor design has to do with prevention of accidental release of radioactivity. In addition to federal regulation's, many states now have codes specifying permissible exposure limits to radiation from radioactive substances.Although basal readers constitute the most widespread materials for the teaching of reading in the United States, they have been severely criticized. Opponents have condemned them for containing insipid stories, for indoctrinating students with middle-class values, for teaching too few words, and for using vocabulary control of a sterile type based mechanically on frequency of use rather than logically on linguistic patterns or language structure.
a General All materials subject to test and inspection, intended for use in boilers and machinery of vessels classed or proposed for classification, are to be tested and inspected by the Surveyor in accordance with the following requirements or their equivalent. Materials having characteristics differing from those prescribed herein require special approval for each application of such materials and the physical tests may be modified to suit conditions as approved in connection with the design.
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