Generally its commercialization occurs by weight, and nobody wants to buy ‘ ‘ gua’ ‘. Most of txteis staple fibres is hygroscopic, that is, they present the capacity to absorb or to liberate humidity. When it has excess or lack of humidity in the environment, the characteristics of the fiber, as the weight and the resistance is modified. (ALBUQUERQUE, 1987, P. 43). For the commercialization of weaveeed one, the main characteristics taken in consideration are the income (how many meters run in one kilogram of fabric), width and gramatura (how many gram for square meter of fabric), as these data can in accordance with vary the relative humidity of air, are removed some samples in different schedules to determine the ideal characteristics, calls of measures standard, this standard according to serves of base for future purchases and/or productions, respecting percentile variation norm.