|Document ID (ISN)||78398|
|Convention or series no.
||Koschinski W., Schirmacher A., Sutter E., Ott G., Janßen M.
Bundesanstalt für Arbeitsschutz und Arbeitsmedizin
||Automatic setting of the glare protection level of electro-optical welding protection filters
||Automatische Schutzstufeneinstellung elektrooptischer Schweißerschutzfilter [in German]|
||Wirtschaftsverlag NW, Postfach 10 11 10, 27511 Bremerhaven, Germany, 1999. 110p. Illus. 12 ref. Price: EUR 12.00.
||Arc welding in Germany generally requires the use of shields rated between 9 and 13 (corresponding to light transmission values of between 10-4 and 10-6) to avoid glare. Such low transmission values do not allow details of the workplace to be visible before the arc is ignited. The purpose of this study was to examine the performance of shields developed by two manufacturers having the capability of changing shade according to the light intensity. Over 100 field tests were carried out, during which the shields were rated by experienced welders under various conditions of light intensity corresponding to the scale of 9 to 13. In most cases, the welders considered the resulting shades to be "correct".
||face shields; arc welding and cutting
||light transmission factor; subjective assessment; evaluation of equipment; glare; Germany; light adaptation; classification; report
||E - Books, reports, proceedings
|Country / State or Province||Germany|
||Lighting, colour and vision
|Broad subject area(s)
||Welding and cutting
Face and eye protection