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specifications
grade 4050
grade 85100
grade 6070
specific gravity at 25ë�c 1.011.06 1.001.05 1.011.06
penetration at 25ë�c 4050 85100 6070
softening point (deg c) 5260 4552 4956
ductility at 25ë�c 100min 100min 100min
loss of heating (pct wt) 0.2 max 0.5 max 0.2 max
retainedpenetration after
t.f.o.t (%) 55 min 47 min 52 min
drop in penetration after heating (pct) 20%max 20% max 20% max
flash point ( deg c) 250 min 225 min 250 min
solubility in cs2 (pct.wt) 99.5 min 99.5 min 99.5 min
bitumen content in cs2 99.5% min 99.5% min 99.5% min
spot test negative negative negative
wax content 1.8% 1.8% 1.8%.