SAMPLING AND TESTING HIGHWAY MATERIALS. 83 



(Name and location of laboratory.) 



Report on Sample of Rock or Slag. 



Laboratory No 



,192.... 



(Date reported.) 



Name 



Identification marks 



Submitted by Title Address 



Sampled , 192... Received , 192.. 



Sampled from 



Quantity represented 



Source of material 



Location used or to be used 



Examined for 



TEST RESULTS. 



Specific gravity 



Weight per cubic foot, in pounds 



Water absorbed per cubic foot, pounds per cent 



Per cent of wear 



French coefficient of wear 



Hardness 



Toughness 



Remarks : 

 Respectfully submitted. 



(Title). 



