88 BULLETIN 949, U. S. DEPARTMENT OF AGRICULTURE. 



(Name and location oflaboratory.) 

 Report on Sample of (Tars or Tar Products'). 



Laboratory No , , 192. .. 



Identification marks: 



Submitted by 



Sampled , 192... Received , 192.. 



Sampled from 



Quantity represented : 



Trade name : 



Manufactured by at 



Location used or to be used : 



Examined for 



test results. 

 General characteristics: 



Water 



Specific gravity, 25° C./25° C 



Specific viscosity, Engler, °C 



Float test, °C. [seconds] ; °C. [seconds] 



Melting point [°C] 



Total bitumen (soluble in carbon disulphide) [per cent] 



Free carbon (organic matter insoluble) [per cent] 



Inorganic matter insoluble [per cent] 



Distillation 



FRACTIONS. CHARACTER. fo BY VOL. fo BY WT. 



-170° C. 



170° C.-235° C. 



235° C.-270° C. 



270° C. -300° C. 



Residue 



Specific gravity of distillate, 25° C./25° C 



Melting point of residue [°C.] 



Remarks: 



Respectfully submitted, 



(Title.) 



