"CSM 01010102-2006 Spectrophotometric method, spec-trophotometry measurement result uncertainty assessment specification" aims to guide how to evaluate the uncertainty of measurement results using Spectrophotometric method, spec-trophotometry. The standard clarifies the principles of uncertainty assessment, calculation methods and treatment of various sources of uncertainty. By quantifying and analyzing instrument errors, operating errors, environmental factors, etc., to ensure the reliability and accuracy of measurement results. The standard provides detailed operating specifications and evaluation frameworks for users of Spectrophotometric method, spec-trophotometry, helping laboratories and testing institutions to scientifically evaluate the reliability of measurement results and further improve the comparability and validity of experimental data.