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  • BS 679:1959

BS 679:1959

Specification for filters for use during welding and similar industrial operations

BSI Group, 02/28/1977

Publisher: BS

File Format: PDF

$125.00$251.46


Published:28/02/1977

Note:This product is unavailable in Ukraine, Russia, Belarus

Classifies filters into shades according to visual density, recommends shades for various industrial uses. Visual density, protection against ultra-violet radiation, total-heat protection, antiglare protection, refractive properties, freedom from optical imperfections, uniformity of density, permanence, quality of cover glasses, colour grading, and (for plastics filters) flammability tests.

All current amendments available at time of purchase are included with the purchase of this document.

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