标准摘要
[中文适用范围]： ISO 5263 的这一部分规定了用于实验室湿法分解不表现出潜伏期的机械纸浆或潜伏期已被去除的机械纸浆的设备和程序。 许多其他涉及纸浆的国际标准中的测试部分的制备都需要该设备和程序。 原则上，该方法适用于所有不表现出潜伏期的机械浆（即机械浆、半化学浆和化学机械浆），包括从机械浆中回收的纤维。 它不适用于表现出潜伏期的机械纸浆，对此应使用 ISO 5263-3 中描述的崩解程序。 ISO 5263-2 规定的程序也应用于分解所有要测量白度的机械纸浆。 注意 亮度不会因延迟的存在而显着改变；然而，机械浆的热分解会导致亮度的显着损失。 [外文原描述]： ISO 5263-2:2004 specifies an apparatus and the procedures for the laboratory-wet disintegration of mechanical pulps that do not exhibit latency or pulps where latency has already been removed. This apparatus and procedure are required for preparation of the test portion in a number of other International Standards dealing with pulps. In principle, this method is applicable to all kind of mechanical pulps (i.e. mechanical, semi-chemical and chemo-mechanical pulps) that do not exhibit latency, including recovered fibres from mechanical pulps. It is not suitable for mechanical pulps exhibiting latency for which the disintegration procedure described in ISO 5263-3 shall be used. The procedure specified by ISO 5263-2:2004 should also be used to disintegrate all mechanical pulps to be measured for brightness.
英文名称Pulps — Laboratory wet disintegration — Part 2: Disintegration of mechanical pulps at 20 degrees C