954 | 2-Methyl-2-butene(CH3)2C=CHCH3, AMYLENE, B-isoamylene, Beta-Isoamylene, Isoamylene, Isoamylenes, Methyl butene, Methylbutenes, n-Amylene, PENTENE | | Fire Service Act | Type 4 Ignite liquid | Specific ignitions | 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 |