This standard establishes the main characteristics of raw (or mass-dyed) 3-strand woven and 8-strand braided ropes produced with monofilaments or slivers of polypropylene fiber with a density of approximately 0.91. 2 The standard applies to ropes, composed of the aforementioned material, having a nominal mass per unit of length from 17 to 4,170 ktex with a nominal diameter between 6 and 96 min1'.
UNI 7977-1979 history
1979UNI 7977-1979 Synthetic fiber rope. Single strand rope or 3 strand twisted and 8 strand crossed polypropylene fiber sheet rope