The EN 1062-11-2002 standard specifies the method for adjusting the condition of samples before conducting tests on membrane materials and coating systems for Coating and varnishing exterior masonry and concrete. The standard specifies how samples should be handled and prepared before testing to ensure the accuracy and repeatability of test results. It includes requirements for temperature Humidity adjustment, sample pretreatment, and storage conditions, aiming to eliminate the influence of environmental factors on test results. By implementing this standard, Coating and coating systems can be guaranteed to be in a standardized state during the experimental process, thus providing reliable data support for product performance evaluation and ensuring the fairness and conformity of test results.