Consumable inserts, solid wires, rods and strip, core wire for covered electrodes, and the sheath (strip or tubing) for tubular cored electrodes and rods identified by controlled chemical composition, rather than by heat number, shall consist of mill coils of one or more heats from which samples have been taken for chemical analysis.

Coils from mills that do not permit spliced-coil practice need be sampled on only one end. Coils from mills that permit spliced-coil practice shall be sampled on both ends and shall have no more than a single splice per coil.

Spliced-coil - бухта,материал (напр. проволока) в которой имеет стыковой шов (splice), т..е. намотана из, как минимум, двух проволок, одна из которых является продолжением другой.