ISO 9975:1990

Round non-alloy steel wires for locked coil mine winding ropes — Specifications

Specifies: a) the dimensional tolerances; b) the mechanical characteristics; c) the conditions with which coatings, if any, shall comply; d) the conditions of sampling and control. Applies to round, bright or zinc-coated wires of nominal diameters between 1 mm and 3,5 mm.