HG/T 4769.4-2014 in English

本部分规定了着色的增塑聚氯乙烯（PVC-P）板中的颜料迁移到与其接触的同类白色材料上的测试程序以及对颜料迁移性进行定量评估的方法。还规定了按照本系列标准第2部分的规定制备试验样品的方法。
本部分适用于着色的增塑聚氯乙烯（PVC-P）板中的颜料迁移到与其接触的同类白色材料上的迁移性的测定，还可用于颜料从其它聚合物材料中迁移到白色增塑聚氯乙烯上的迁移性的测定。
本部分不涉及颜料浮色（参见附录A）的测试。

Scope

This standard specifies test procedures for the migration of pigments from colored plasticized polyvinyl chloride (PVC-P) panels onto similar white materials in contact with them and methods for the quantitative assessment of pigment migration. It also specifies the test procedures for pigment migration in accordance with HG/T Methods for preparing test specimens as specified in 4769.2. This section is applicable to the determination of the migration of pigments in colored plasticized polyvinyl chloride (PVC-P) boards to the same white materials in contact with them. It can also be used for the migration of pigments from other polymer materials to white plasticized materials. Determination of migration on polyvinyl chloride. This section does not involve the test of pigment floating color (see Appendix A).