  200 shells per â¦ carton. 600 cigarettes per pound so 16 ounces divided into that is .03 ounces per cigarette or 6 ounces per carton. so 0.6 ounces per pack so the shell weighing .4 to .5 ounces makes sense I guess. Metric scale to .001 ounce needed.
Bitumen is also frequently called tar or pitchâthough, properly speaking, tar is a byproduct of the carbonization of coal and pitch is actually obtained from the distillation of coal tar. Bitumen is defined by the U.S. Geological Survey as an extra-heavy oil with an API gravity less than 10Â° and a viscosity greater than 10,000 centipoise.
Bitumens and bitumen emissionscutbacksâ [class 3 bitumen], solid petroleum asphalt materials cut back to 64% solid with mineral spirits): 89% asphalt A, 1% xylene, and 10% mineral spirits; 98% asphalt B and 2% xylene; 97% asphalt C and 3% xylene; and 97% asphalt D and 3% xylene.