A device for the quantitative analysis of debris 1, wherein {HEAD ~ said conveyor belt} is provided with containment sidewalls , integral thereto and placed on both sides along their whole length, and defines {TAIL ~ an upper or debris collection surface} and a lower surface 
defines
A device for the quantitative analysis of debris 1 , wherein { HEAD ~ said conveyor belt } is provided with containment sidewalls , integral thereto and placed on both sides along their whole length , and defines { TAIL ~ an upper or debris collection surface } and a lower surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH