物理安全检测
ASTM D7356/D7356M采用氙弧光曝光装置加速汽车透明涂层酸侵蚀的标准试验方法
标准名称
ASTM D7356/D7356M Standard Test Method for Accelerated Acid Etch Weathering of Automotive Clearcoats Using a Xenon-Arc Exposure Device
ASTM D7356/D7356M采用氙弧光曝光装置加速汽车透明涂层酸侵蚀的标准试验方法
适用范围
Scope:
This test method covers an accelerated exposure test intended to simulate defects in automotive clearcoats caused by acid rain 2 that occur at the Jacksonville, Florida exposure site. Exterior exposures at an acid rain test location in Jacksonville, Florida produce etch defects that range from small pits to 12.7 mm [0.5 in.] in diameter or larger acid-etched spots. The latter type of defect is not produced in other acid-etch tests that only produce pits that are smaller than 6.35 mm [0.25 in.] in diameter.
引用文件
ASTM D1293 Test Methods for pH of Water
ASTM D4517 Test Method for Low-Level Total Silica in High- Purity Water by Flameless Atomic Absorption Spectroscopy
ASTM G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
ASTM G147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
ASTM G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
ASTM G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
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