1.1 本试验方法描述了一种测定织物上聚氯乙烯（PVC）分散涂层熔合完整性的简单程序。本试验主要适用于具有机械粘结的涂层，不包括粘结涂层。 1.2 本标准并不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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.3 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》中确立的国际公认标准化原则制定的。 =====意义和用途====== 3.1 聚氯乙烯（PVC）作为PVC颗粒在液体载体中的分散体应用于涂层织物。在织物加工过程中，PVC被熔融或熔化以在织物上产生均匀的薄膜。该测试测量PVC是否转化、熔融或熔化以产生均匀的薄膜。 3.2 该转化过程是聚合物颗粒中微晶结构的熔化，然后熔融聚合物在增塑载体中的溶液。融合在PVC涂层织物的生产中很重要。

1.1 This test method describes a simple procedure to determine the completeness of fusion of poly(vinyl chloride) (PVC) dispersion coatings on fabric. This test applies primarily to coatings with a mechanical bond and does not include tie coating. 1.2 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. 1.3 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 ====== 3.1 Poly(vinyl chloride) (PVC) is applied to coated fabrics as a dispersion of PVC particles in a liquid vehicle. During the processing of the fabric the PVC is fused or melted to produce a uniform film on the fabric. This test measures whether the PVC is converted, fused, or melted to produce a homogeneous film. 3.2 This conversion process is a melting of the crystallite structures in the polymer particles followed by solution of the molten polymer in the plasticizing vehicle. Fusion is important in the production of PVC-coated fabrics.