Bl This standard establishes a direct method to determine the direction of twist and twist of nylons (see H-1), B-2 This standard is applicable to: a) simple threads (made up of fibers or filaments) b ) twisted threads c) cabled threads. B-3 This standard is applicable to determine certain twists: In twisted threads; The final twist of the twisted threads and the original twist of the single threads before twisting In cabled threads; a) the final twist of the cable or rope of the wired thread b) the original twist of the twisted thread, after twisting, but before the last stage of manufacturing o) the original twist, of the simple thread before twisting.B -4 The procedures contemplated in this standard refer to threads coming from reels, balls, cardboard, tubes, coils, cones, skeins, etc., but with some precautions, and provided that there is a prior agreement, they can be applied to threads. extracted from tissues. B-5 This standard is not applicable to yarns that, under a tension of 0.5 g + 0.1 g per tex, stretch more than 0.5%, nor is it recommended for determinations in articles of more than 2 mm diameter; They may, however, be applied to those cases, when so established by prior agreement.
IRAM 7602-1963 history
1963IRAM 7602-1963 A direct way to determine the thread torque