对于某些织物，单位长度质量和单位面积质量仅与织物宽度有关，但对于其他织物，结构变化可能会在单位长度质量和单位面积质量之间引入重要区别。本方法适用于全宽或中间折叠的机织物（包括“拉伸”型），也适用于测定整件织物的质量和样品长度。

For some fabrics, mass per unit length and mass per unit area are related simply by the width of the fabric, but for other fabrics variations in structure may introduce an important distinction between mass per unit length and mass per unit area. The methods are applicable to woven fabrics (including those of "stretch" type) made up full width or folded down the middle, and apply to the determination of the fabric mass of complete pieces as well as of sample length.