This standard test method is used to evaluate the low temperature flexibility of emulsion sealants after 500 hours of artificial weathering. The resilience of sealants in low temperature environments is tested through laboratory procedures to ensure their performance in severe cold conditions. This test helps determine the low temperature tolerance of sealants in practical applications, providing reliable data for the selection and application of sealants. This method focuses on the performance of emulsion sealants in low temperature conditions, but there is currently no ISO standard to correspond to it.