By Sosman R.B.
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Extra info for An Outline of Geophysical-Chemical Problems (1920)(en)(10s)
Before, Grams Panel IV. Wt. 16 Av. Washability, 2275 strokes. 3 1272 1273 1274 1275 1276 Wt. Loss, Grams Wt. after, Grams Wt. ch006 CO S ι > Ο 5S S H s In FIRE RETARDANT PAINTS; Advances in Chemistry; American Chemical Society: Washington, DC, 1954. 57 Av. 6 After Leaching 11 . 02 Av. 9 Panel F l a m e Out, Sec. 7 Alcohol F l a m e Out, Sec. 3 Panel Flame, Sec. Paint Discolor Char Face Volume, Sec. C u . Inches Before Leaching Char A r e a , S q . Inches on I n t e r i o r 1201 1202 1203 1204 1205 * Wt.
450 487 463 476 469 Alcohol F l a m e Out, Sec. 28 28 28 30 26 Panel Flame, Sec. 57 V. 484 477 488 486 472 488 482 491 485 476 40 27 35 27 28 21 16 18 17 19 Panel F l a m e Out, Sec. 8 Alcohol F l a m e Out, Sec. 2 Before Leaching 2 Panel Flame, Sec. Paint Discolor Face Sec. on I n t e r i o r Char Volume, C u . Inches Data Char A r e a , Sq. 65 Wt. after, Grams Washability, 1436 strokes. Wt. before, Grams Panel IV. Wt. 16 Av. Washability, 2275 strokes. 3 1272 1273 1274 1275 1276 Wt. Loss, Grams Wt.
0 Conclusions Of the pigments and extenders tested, zinc borate is the most effective as a fire retardant. Calcium carbonate has good fire-retardant properties, especially in the limitation of the char area. Antimony oxide, whether in presence or absence of chlorine, is not particularly effective as a fire-retardant pigment in paint. Pigment volume concentration has a definite eliect on fire-retardant properties of paint films. This effect appears to be specific for each pigment or pigment combination.
An Outline of Geophysical-Chemical Problems (1920)(en)(10s) by Sosman R.B.