Principles and practices of up-keep painting (1923)
E.I. du Pont de Nemours & Company, author · Chicago, Ill. ; Philadelphia, Pa. ; Boston, Mass. : E.I. du Pont de Nemours & Co., Inc. · leaf 212
GOOD PAINT AND VARNISH HOLDS DOWN UPKEEP COST colors in the color spectrum. Investigation has shown that any materials transported in pipe lines fall into one of five classifications. Safe Products Extra Valuable Materials Dangerous Materials Protective Materials Fire Control Equipment It was… … in practically all plants toward using red, or a color that shows in the led classification for this purpose. Safe Products have been given the Green sector. Extra Valuable Material — Purple, (There is very little call for the use of this color.) Dangerous Materials — Yellow. Protective Materials —…
Painting, Industrial · Varnish and varnishing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
