| 1041 | Methyl vinyl ketone1-Buten-3-one, 2-Butenone, 3-Buten-2-one, 3-Oxobutene, Butenon, Butenone, CH2=CHCOCH3, MVK | | Fire Service Act | Type 4 Ignite liquid | Class 1 petroleum Nonaqueous liquid | 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 |