渔网 网线伸长的测定

[中文适用范围]： 测试可以在干状态和湿状态下进行，但湿状态下的测试被认为特别适合指示纱线在使用中的行为。 可以使用以下任何类型的拉伸试验机： 恒定伸长率试验机；横移机恒定速率。 应优先选择恒速伸长机。 [外文原描述]： Tests may be carried out in both the dry and wet states but tests in the wet state are considered to be particularly appropriate in indicating the behaviour of the yarn in use. Any of the following types of tensile testing machines may be used: constant rate of elongations machine; constant rate of traverse machine. Preference should be given to constant rate of elongation machines.