ASTM D543评定塑料耐化学试剂的标准实施规程
mensions, appearance, and strength properties. Standard reagents are specified to establish results on a comparable basis. Provisions are made for various exposure times, stress conditions, and exposure to reagents at elevated temperatures. The type of conditioning (immersionorwet patch) depends upon the end-use of the material. If used as a containerortransfer line, immerse the specimens. If the material will only see short exposuresorwill be used in proximity and reagent will splashorspill on
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10/08 18:05