Flammable Liquid Storage
Storage of flammable liquids must occur in either the original container from the manufacturer, or in approved containers as illustrated in Table 2 of this fact sheet.
"Flammable liquid" means any liquid having a flashpoint at or below 199.4°F (93°C). Flammable liquids are divided into four categories as follows:
| Category | Criteria |
|---|---|
| 1 | Flash point < 23°C and initial boiling point ≤ 35°C (95°F) |
| 2 | Flash point < 23°C and initial boiling point > 35°C (95°F) |
| 3 | Flash point ≥ 23°C and ≤ 60°C (140°F) |
| 4 | Flash point ≥ 60°C (140°F) and ≤ 93°C (200°F) |
When liquid with a flashpoint greater than 199.4°F (93°C) is heated for use to within 30°F (16.7°C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 4 flammable liquid.
| Container Type | Flammable Liquid Category 1 | Flammable Liquid Category 2 | Flammable Liquid Category 3 | Flammable Liquid Category 4 |
|---|---|---|---|---|
| Glass or approved plastic* | 1 pt | 1 qt | 1 gal | 1 gal |
| Metal | 1 gal | 5 gal | 5 gal | 5 gal |
| Safety Cans | 2 gal | 5 gal | 5 gal | 5 gal |
*Approved means approved or listed by either Underwriter's Laboratories or Factory Mutual Engineering Corporation.
Storage Cabinets: "Maximum capacity." Not more than 60 gallons of Category 1, 2, or 3 flammable liquids, nor more than 120 gallons of Category 4 flammable liquids may be stored in a storage cabinet.