Prezentul standard stabile?te metoda de determinare a modific?rilor de lungime la 1*0 *C a firelor poliesterice texturate supraelastice ?i anume: contrac?ia, gradul de ?ncre?ire ?i alungirea poten?ial?.
STAS 9139/4-1990 history
1990STAS 9139/4-1990 Man-made yarns. Length changes determination at 130centi-degree of stretch textured polyesteric yarns