This part of ISO 8119 gives, in English, French and Russian, the terminology relating to latch-type needles. These needles have a flat or round crosssection, a hook-shaped head and a reciprocating latch on a fixed pivot situated in front of the head. During the loop-forming cycle the latch is opened and closed on the head by the action of the yarn. NOTE — In addition to terms used in the three official ISO languages (English, French and Russian), this part of ISO 8119 gives the equivalent terms in the German language in annex A; these have been included at the request of ISO Technical Committee TC 72 and are published under the responsibility of the member body for Germany, F.R. (DIN). However, only the terms given in the official languages can be considered as ISO terms.