Document 2JRYqY2Yepoyrg9b088NQgpVg

f.7 2000-15 20OM-4-G4 * UNDERWRITERS' LABORATORIES, INC. R46 64K1150 CHICAGO - June 24, 1964 Mr*. R. L. Donahue Senior Project Engr. Fire Protection Dept. NORTHBROOK TESTING STATION 1. In compliance with your interdeparfcment work order of June 5, 1964 we have conducted tests on samples of Class A shingles and components, submitted by Bird and Son, Inc. (Charleston) under the above assignment number. FINISHED PRODUCT: Finished weight, pounds per 100 sq ft Mineral matter, pounds per 100 sq ft Mineral matter, per cent Desaturated felt weight, pounds per 100 sq ft Granular adhesion, grams loss 129-0 68.2 - 52.8 12.6 1.306 DRY FELT: Dry weight, pounds per 100 sq ft Ash content, per cent 11.5 2.39 SATURATED FELT:' Finished weight, pounds per 100 sq ft Desaturated felt weight, pounds per 100 sq ft Saturation, per cent 32.3 BIRD 011657 * * 4 cSv. l) * R46 2- - June 24, 1964 RILEED COATING: Insoluble in chloroform, per cent UNFILLED COATING AND SATURANT: Flash point F (PMCT) Softening point F (R-B) Penetration (77P-100g) ASBESTOS: Amount retained on, per cent: No. 16 No. 30 No. 40 No. 100 No. 200 Pan Loss on ignition, per cent ROCK DUST: Sieve analysis, per cent retained on: No. 40 No. 50 No. 70 No. 100 No. 140 No. 200 Pan Loss on ignition, per cent Unfilled Coating 525 227 15 50.5 Saturant 530 144 11 30 9 4 10 35 1.0 None 1 2 2 4 15 78 1.98 2. This eompletes our test3 under the above work order. GHH:DJM G. H. HANSON Project Engineer Chemical Department BIRD 011658