2705.2.2 Maximum aggregate quantities in fabrication areas.
FC § 2705.2.2
The aggregate quantities of hazardous materials in a single fabrication area shall comply with the requirements of FC 2704.2.2, and FC Table 2704.2.2.1. The quantity of HPM in use at a workstation shall not exceed the quantities listed in FC Table 2705.2.2. FC Table 2705.2.2Maximum Quantities of Hpm at a Workstation d HPM ClassificationStateMaximum QuantityHPM ClassificationStateMaximum QuantityFlammable, highly toxic, pyrophoric and toxic combinedGasCombined aggregate volume of all containers at a workstation shall not exceed an internal container volume of 39.6 gallons or 5.29 cubic feetFlammableLiquid15 gallons a, bSolid5 pounds a, bCorrosiveGasCombined aggregate volume of all containers at a workstation shall not exceed an internal container volume of 39.6 gallons or 5.29 cubic feet LiquidUse - Open System: 25 gallons bUse - Closed System: 150 gallons b, eSolid20 pounds a, bHighly toxicLiquid15 gallons aSolid5 pounds aOxidizerGasCombined aggregate volume of all containers at a workstation shall not exceed an internal container volume of 39.6 gallons or 5.29 cubic feet LiquidUse - open system: 12 gallons bUse - closed system: 60 gallons bSolid20 pounds a, bPyrophoricLiquid1/2 gallon c, fSolidSee FC Table 2704.2.2.1ToxicLiquidUse - open system: 15 gallons bUse - closed system: 60 gallons bSolid5 pounds a, bUnstable reactive Class 3Liquid1/2 gallon a, bSolid5 pounds a, bWater-reactive Class 3Liquid1/2 gallon c, fSolidSee FC Table 2704.2.2.1 For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L. a. Maximum allowable quantities may be increased 100 percent for closed systems operations. When Note b applies, the quantities increased may be as set forth in both notes. b. Quantities may be increased 100 percent when workstations are internally protected throughout by a fire extinguishing system complying with the requirements of FC Chapter 9. When Note a applies, the quantities increased may be as set forth in both notes. When Note e applies, the maximum increase authorized by both Notes b and e shall not exceed 100 percent. c. Allowed only in workstations that are internally protected throughout by a fire extinguishing system compatible with the reactivity of materials in use at the workstation. d. The quantity limits apply only to materials classified as HPM. e. Quantities may be increased 100 percent for nonflammable, noncombustible corrosive liquids when the materials of construction for workstations are listed or approved for use without internal fire extinguishing system protection. When Note b applies, the maximum increase authorized by both Notes b and e shall not exceed 100 percent. f. A maximum quantity of 5.3 gallons shall be allowed at a workstation when in accordance with FC 2705.2.3.4.
