1.1 本试验方法描述了测定平均粘度聚合度的标准程序（缩写 )新的或老化的电子纸。通过测量纸张在适当溶剂中的溶液的特性粘度来进行测定。 1.2 特定纤维素分子的聚合度（或缩合度）是脱水-β-葡萄糖单体的数量，C 6. H 10 哦 5. ，在纤维素分子中。在纸样品中，并非所有的纤维素分子都具有相同的聚合度，因此通过粘度法测量的平均值不一定与通过其他方法获得的平均值相同。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 参见第节 9 . 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 本试验方法适用于变压器、电缆或电容器制造中使用的所有由未改性纤维素制成的纸张。它适用于新的或旧的论文。 作为参考， 附录X1 显示了的统计分布示例 用于变压器绝缘的新文件的值，以及与电缆和电容器文件相关的信息。然而，在评估老化论文的分解阶段时，应注意使用 具有相同来源的新论文的价值； 新论文的比重和制造过程等因素的函数。 5.2 该试验方法也可用于测定化学改性纸张溶液的特性粘度，前提是这些溶液完全溶解在选择的溶剂中。当将此测试方法应用于含有矿物填料的纸张时，应谨慎使用。

1.1 This test method describes a standard procedure for determining the average viscometric degree of polymerization (abbreviated ) of new or aged electrical papers. The determination is made by measuring the intrinsic viscosity of a solution of the paper in an appropriate solvent. 1.2 The degree of polymerization (or the degree of condensation) of a particular cellulose molecule is the number of anhydro-β-glucose monomers, C 6 H 10 O 5 , in the cellulose molecule. Within a sample of paper, not all the cellulose molecules have the same degree of polymerization so that the mean value measured by viscometric methods is not necessarily the same as that which are obtained by other methods. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 9 . 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method applies to all papers made from unmodified cellulose, as used in transformer, cable, or capacitor manufacture. It applies to new or aged papers. For information, Appendix X1 shows an example of statistical distribution of values for new papers intended for the insulation of transformers, together with information relative to cable and capacitor papers. Nevertheless, where evaluating the decomposition stage of aged papers, take care to use, as a reference, the value of the new paper of the very same origin; of new papers being a function, among other factors, of their specific gravity and of their manufacturing process. 5.2 This test method can also be used for the determination of the intrinsic viscosity of solutions of chemically modified papers, provided that these dissolve completely in the selection solvent. Use this test method with caution when it is applied to papers with mineral fillers.