The change to the metric system of measurement should increase the general use of the tex system in all segments of the industry. ASTM has identified the rex yarn number as the recommended standard.

• 度量系统向米制的过渡,要求纺织工业各个领域普遍使用特克斯系统。美国材料实验协会已经确认,特克斯已作为推荐使用的纱线细度标准。