Accident Lesson Card · Real investigation (tap external link for official report)
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China Accident Investigation Report No. CN-MEM-2025-02-12-ZS 2025 Explosion Explosion Fire Fire
中山奕安泰医药'2·12'平板离心机正庚烷蒸气静电闪爆事（2025，1 死）
中山奕安泰医药科技有限公司，中山市火炬开发区仲景路 6 号（中山市应急管理局批复）
Related equipment type → centrifuge (centrifuge)
1Fatalities
0Injuries
ExplosionMechanism code EXP
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
ExplosionEXP
Internal damage-mechanism code (not ISO 14224)
ISO 14224:2016 functional failure code
OTH · Other
Mapped to ISO OTH — Other.
1What Happened

操作工违反 GB 19815-2021 第 5.7.3.1 条，未对离心机充氮惰化，投入含正庚烷（爆炸极限 1.1%~6.7%、闪点 -4℃）易燃物料，易燃液体气化与空气混合达爆炸极限，遇静电火花发生闪爆，机盖被掀开变形

2Root Cause

企业风险辨识缺位、未消除隐患；操作工违章未充氮惰化；第三方安全评价严重失实（未引用 GB 19815-2021）

3Reliability Lessons (from investigation root cause)
  • The 'Root Cause' above is the core lesson of this accident; not split further.
4Associated Failure Mechanisms (Keywords)
离心机 正庚烷 氮封 惰化 静电 闪爆 爆炸极限 centrifuge nitrogen static explosion GB 19815
About the Failure-Mode Code (click to expand)

The mechanism code EXP shown on this card is the KB's internal damage-mechanism abbreviation (not an ISO 14224 code); it describes how the equipment failed. The 'ISO 14224 Mapping' block above maps it to the correct ISO functional failure code (which describes what the equipment failed to do) — these are two distinct dimensions in ISO 14224. The mechanism follows the narrative in the card body.

5Evidence Source (transparent)
Authority：中山市应急管理局 / 中山市人民政府（'2·12'事故调查组批复）
Official Report：www.zs.gov.cn ↗
Data Verification：verified_url_zs_gov_cn_2525913_2026-08-08 (中山市应急管理局'2·12'事故调查报告 PDF)
↗Related Failure Modes · Traceability
轴承失效（磨损/剥落） MECH-BEARING-WEAR密封失效 MECH-SEAL-FAILURE冲蚀/冲刷腐蚀 MECH-EROSION转子不平衡 MECH-UNBALANCE润滑失效 MECH-LUBRICATION-FAILURE氯化物应力腐蚀开裂 MECH-CLSCC不对中 MECH-MISALIGNMENT结垢/堵塞 MECH-FOULING均匀/局部减薄（通用减薄） MECH-THINNING联轴器失效 MECH-COUPLING-FAILURE振动诱发疲劳 MECH-VIB-FATIGUE大气腐蚀 MECH-ATMOS机械疲劳 MECH-MECH-FATIGUE电偶腐蚀 MECH-GALVANIC
Report No. CN-MEM-2025-02-12-ZS · Data from China Emergency Management Dept. public investigation conclusions, compiled by Reliability AI, for reliability demonstration purposes only. This case is derived from public incident investigation reports for learning purposes only. AIM does not endorse or guarantee its accuracy.