| 925 | Trimethylaluminium(CH3)3Al, A-T Mutated, ATM, TMA (Trimethylaluminium), Trimethyl-alane, Trimethyl-aluminu, Trimethylalane, Trimethylalumine, Trimethylaluminum | | Fire Service Act | Type 3 pyrophoric substance and Dangerous when Wet | Alkylaluminum | Handling or storage; Submission of a notification in the case that the amount is 20-100% of the specified value; permit required in the case that the amount is >100% of the specified value (the sum of proportions is calculated when storing/handling multiple classes in the same place) | Fire and Disaster Management Agency | | Fire Service Act |