China National Standards

China whiteness—Plastic GB Standards List

  •  China "whiteness—Plastic" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 39307-2020 Fluorescent whitening agents—Determination of shade and relative whiteness—Plastic coloring
    荧光增白剂 色光和增白强度的测定 塑料着色法    		 China National Standards
    whiteness—Plastic
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