Construction of Nets: 3.3.1 The disposable nets shall be constructed of a knotless knitted mesh synthetic material with openings of 1/2 inch by 1/2 inch mounted on a wood frame sized to permit rapid installation and removal from the floatables collection system without contact with the floatables captured in the net. Inline netting floatables collection systems that use hooks to attach the disposable mesh nets to the frame are not acceptable. 3.3.2 The composition, denier, and the method of knitting of the mesh material shall be such that the finished mesh material has a minimum tensile strength of at least 75 pounds direction of the fabric wales and 150 pounds in the direction of the fabric courses. The yield strength shall be determined by a certified testing laboratory using ASTM test procedure #5034-95 using an INSTRON Testing Machine. The contractor shall provide certified copies upon request of the Authority. 3.3.3 The composition, denier, and the method of knitting of the mesh material shall be such that the finished mesh material has a minimum burst strength of at least 250 pounds. The burst strength shall be determined by a certified testing laboratory using ASTM test procedure #D 3786-87 on a mullen burst strength testing machine. The contractor shall provide certified copies of these test results at the request of the Authority. 3.3.4 The composition, denier, and the method of knitting of the mesh material shall be such that the finished mesh material shall have a minimum abrasion resistance of 50 cycles performed using ASTM test procedure #D 3884-92 on a taber abrasion testing machine. The contractor shall provide certified copies of these test results at the request of the Authority...
