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MAP20071017583Ingle, JohnDevice automatic recording of arcing periods during electric welding / John IngleSumario: During various studies concerning the exposure of welders to airborne contaminants it has been necessary to keep a record of the arcing pattern of the welder in order to relate exposure to the pattern of work and to deduce the total arcing time. A device is described for automatically recording the time and duration of arcing period during electric weldingEn: The Annals of occupational hygiene. - Oxford [etc.]. - nº 1, 1986 ; p. 123-1241. Higiene industrial. 2. Contaminantes químicos. 3. Contaminación atmosférica. 4. Control de la contaminación. 5. Soldadura eléctrica. 6. Electricidad. I. Title. II. Título: The Annals of occupational hygiene.