GB/T 16840.4-2021
ActiveTechnical determination methods for electrical fire evidence—Part 4: Metallographic analysis method
电气火灾痕迹物证技术鉴定方法 第4部分：金相分析法
Application Summary AI generated
This standard specifies the metallographic analysis method for examining electrical fire evidence, focusing on the microscopic structure of melted conductors and components. It is applied by fire investigators and forensic laboratories in China to determine whether electrical faults, such as short circuits or overloads, caused a fire. The method is used in post-fire evidence analysis to differentiate fire-induced damage from pre-existing electrical failures.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.