GB/T 39933-2021 "Rotational moulding—Test method for low temperature impact"

This standard specifies two low temperature impact test methods (pass method and layer method), which are suitable for evaluating the low temperature Impact performance of semi-rigid or rigid plastic products formed by rotomolded at -40 ° C. Miscellaneous temperature testing can be used as a reference. The standard does not apply to products with a thickness of less than 3.0mm. It is designed to provide a scientific test basis for the quality control and performance evaluation of rotomolded products to ensure the safety and Reliability of products under low temperature conditions.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.