更改

<!-- EU Index no. 607-002-00-6 --> {| class="wikitable" |- ! 浓度（质量） ! 分级 ! [[警示性质标准词列表|警示标准词]] |- | 2%–10% | 刺激 ('''Xi''') | |- | 10%–90% | 腐蚀 ('''C''') | |- | >90% | 腐蚀 ('''C''') | ,

:HCOOH → +

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