c. The system shall include, but not be restricted to, the fol- 

 lowing interchangeable sampling devices: (1) small "grab" samp- 

 lers, (2) short corers (0-15 feet), (3) long corers (0-100 feet), 



(4) light-weight dredge, (5) heavy-weight dredge, (6) long in situ 

 sampling device, (7) large volume interface sediment sampler 

 (capacity 1 cubic foot), (8) short in situ sampling device. 



d. The in situ sampling devices indicated above shall be 

 capable of obtaining an undisturbed sample of the water /bottom inter- 

 face, including retention of ambient pressure at sampling depths of 



1 to 20 feet for the long and up to 6 inches for the short in situ 

 devices. 



e. Although certain types of corers and samplers now exist, 

 they are considered to be in need of improvement and consequently, 

 new and radical scientific and engineering techniques are needed to 

 develop an overall improved Sea Floor Sampling System. 



f. The various attachments associated with this system, if 

 tended by a wire, shall be so designed that they can be used with the 

 Multi-Purpose Heavy Duty Oceanographic Winch described separately 

 in this Oceanographic Survey Ship instrument system. 



Potential Users and Estimated Number of Units Whi ch They May 

 Require : 



a. U. S. Navy (for oceanographic survey ships, basic research 

 ships, and applied research ships) - 19 to 22. 



b. Certain activities within scientific community - 12 to 20. 



c. U. S. Coast and Geodetic Survey - 8 to 15. 



d. Bureau of Commercial Fisheries - 2. 



Total: 41 to 59. 



Recommendation Where System Should Be Researched and 

 Developed: 



U. S. Industry. 



388 



