Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers Volume 60 by United States Congress Senate
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Author: United States Congress Senate
Number of Pages: 292 pages
Published Date: 16 Jan 2013
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Type: PDF
ISBN: 9781234255732
File size: 12 Mb
Download Link: Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers Volume 60
---------------------------------------------------------------
Author: United States Congress Senate
Number of Pages: 292 pages
Published Date: 16 Jan 2013
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Type: PDF
ISBN: 9781234255732
File size: 12 Mb
Download Link: Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers Volume 60
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ...area of the liquid giving off the fumes should be located as near the point of origin of the fumes as the nature of the work will permit. A velocity of air of 1000 lin. ft. per min. should be generated in each exhaust opening. If sheet metal is used in the construction of the duct, an acid-resisting paint should be used to prevent corrosion. The exhaust fan should be treated with acid-resisting paint to prevent corrosion. Floor gratings should be provided and rubber gloves for the operatives. Plating It is essential that a system of mechanical ventilation ensure freedom from stagnant air in the plating room. This may be accomplished by means of wall fans, when the tanks are located near the side of the room; or by overhead hoods mechanically exhausted; or with ventilating stacks, when the plating operations are carried on in the middle of a department. A natural-draft hood, to be effective, should only depend on a stack or stacks direct to the outer air, in a proportion of a square 12-in. stack to every 36 sq. ft. of hood area. Wooden gratings should always be provided in the plating room and rubber gloves should be provided for the operators. Enamels And Lacquers The solvents for the pyroxylin, which forms the basis for the lacquers and enamels used on metal-finishing, are not only highly inflammable but poisonous to those exposed to their fumes. Wood alcohol, benzol, amylacetate, amylalcohol, volatile ketones, and acetone are (except the last two) admitted to be injurious to all who breathe them. The fumes evolved during dipping or spraying should be controlled at their point of origin. Mechanically exhausted spray booths are now in the market, or may be "home made;" but the only type that should be chosen is one with an...
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