T54.3X1 - Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional) T54.3 - Toxic effects of corrosive alkalis and alkali-like substances T54.3X - Toxic effects of corrosive alkalis and alkali-like substances T54.3X1 - Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional)