- (a) Brass. Brass or other approved durable corrosive-resistive material of equal strength or toughness shall have an ultimate tensile strength of not less than 50,000 pounds per square inch and elongation not less than 15% in two inches. When the material is annealed, the tensile test shall be made after annealing.
- (b) Leather. Leather shall be oak tanned, free of glucose, salts, adulterants and acid.
- (c) Canvas. Canvas shall be of double web and stitched.
- (d) Rope. Rope shall be not less than 1/2 inch diameter Yacht Manila. It shall be from fiber of fine texture and flexible, yet hard enough to wear well.