The GB/T 42430-2023 standard describes methods for the inspection of ethanol, methanol, n-propanol, acetone, Isopropanol and n-butanol in blood and urine using top air chromatograph (HS/GC) and top air chromatograph-mass spectrometry (HS/GC-MS) techniques. The standard applies to qualitative and quantitative analysis of these components in blood and urine, ensuring accuracy and Reliability. In addition, the standard covers terms and definitions, citing specifications and test methods for analyzing laboratory water and a glossary of terms for toxicological analysis. Through these measures, the standard ensures the conformity and accuracy of scientific detection and analysis of components such as ethanol and methanol in biological samples.