This standard specifies the product classification, technical requirements, test methods and inspection rules for pure cotton warp and weft threads used in hand-knotted carpets. This standard applies to pure cotton warp and weft threads for hand-knotted carpets made of pure cotton yarn.
QB/T 1085-1991 history
1991QB/T 1085-1991 Pure cotton warp and weft thread for hand-knotted carpet