. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 27. Polypropylene, nylon, and cotton rope specimens. Table 4. Breaking Strength of Rope Specimens Before and After Deep Sea Exposure (STU 11-2) Rope Material Diam (in.) Breaking Strength (lb) Unexposed Specimens -v Exposed Specimens On Bio-Racks^ Inside Plastic Tube ^ Cotton Manila Nylon Polypropylene 1/2 1/2 1/4 5/16 1,340 2,068 1,900 1,810 200 Completely deteri- orated by marine organisms 1,482 1,570 522 1,805 1,557 1,687 \j Average of 2 specimens 28. Please note that these images are extracted from scanned page
. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 27. Polypropylene, nylon, and cotton rope specimens. Table 4. Breaking Strength of Rope Specimens Before and After Deep Sea Exposure (STU 11-2) Rope Material Diam (in.) Breaking Strength (lb) Unexposed Specimens -v Exposed Specimens On Bio-Racks^ Inside Plastic Tube ^ Cotton Manila Nylon Polypropylene 1/2 1/2 1/4 5/16 1,340 2,068 1,900 1,810 200 Completely deteri- orated by marine organisms 1,482 1,570 522 1,805 1,557 1,687 \j Average of 2 specimens 28. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Muraoka, James S; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory
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