本标准规定了鞋用帮材、底材等制品对近似的太阳光、紫外光照射的耐黄变程度的试验方法。 本标准规定了A法和B法两种试验方法，A法为太阳灯法，B法为紫外线灯管法。本标准适用于白色和浅色的鞋用材料的测试。
This standard specifies the test methods of discoloration degree of such products as upper materials and sole materials for footwear under approximate sunlight and ultraviolet exposure.
This standard specifies Method A and Method B, Method A is sunlamp method, and Method B is ultraviolet light tube method.
This standard is applicable to the test of white and light-colored materials used for footwear.
Foreword I
1 Scope
2 Normative References
3 Principles
4 Test Devices
5 Specimen Preparation
6 Test conditions
7 Test Procedure
8 Test Result
9 Test Report
本标准规定了鞋用帮材、底材等制品对近似的太阳光、紫外光照射的耐黄变程度的试验方法。 本标准规定了A法和B法两种试验方法，A法为太阳灯法，B法为紫外线灯管法。本标准适用于白色和浅色的鞋用材料的测试。
This standard specifies the test methods of discoloration degree of such products as upper materials and sole materials for footwear under approximate sunlight and ultraviolet exposure.
This standard specifies Method A and Method B, Method A is sunlamp method, and Method B is ultraviolet light tube method.
This standard is applicable to the test of white and light-colored materials used for footwear.
Contents of HG/T 3689-2014
Foreword I
1 Scope
2 Normative References
3 Principles
4 Test Devices
5 Specimen Preparation
6 Test conditions
7 Test Procedure
8 Test Result
9 Test Report
