this Chart: To determine if two gases must be segregated, locate one gas category in the far left and then the second gas type in the top row. (Source: NFPA Code, §55) Table 3: Maximum Allowable Quantity of Gases per Laboratory Unsprinklered Sprinklered Areas No gas cabinet, Gas cabinet, gas No gas cabinet, Gas cabinet, gas gas room, or room, or gas room, or room, or Materials exhausted exhausted exhausted exhausted enclosure enclosure enclosure enclosure Corrosive Gas Liquefied 68 kg (150 lb) 136 kg (300 lb) 136 kg (300 lb) 272 kg (600 lb) Nonliquefied 23 m3 (810 ft3) 46 m3 (1620 ft3) 46 m3 (1620 ft3) 92 m3 (3240 ft3) Cryogenic Fluid Liquefied 0 L (0 gal) 170 L (45 gal) 170 L (45 gal) 170 L (45 gal) Nonliquefied 170 L (45 gal) 340 L (90 gal) 340 L (90 gal) 681 L (180 gal) Flammable Gas Liquefied 114 L (30 gal) 227 L (150 gal) 227 L (60 gal) 454 L (120 gal) Nonliquefied 28 m3 (1000 ft3) 28 m3 (2000 ft3) 28 m3 (2000 ft3) 56 m3 (4000 ft3) Highly Toxic Gas Liquefied 0 kg (0 lb) 2.3 kg (5 lb) 0 kg (0 lb) 4.5 kg (10 lb) Nonliquefied 0 m3 (0 ft3) 0.6 m3 (20 ft3) 0 m3 (0 ft3) 1.1 m3 (40 ft3) Nonflammable Gas Liquefied No Limit No Limit No Limit No Limit Nonliquefied No Limit No Limit No Limit No Limit Oxidizing Gas
this Chart: To determine if two gases must be segregated, locate one gas category in the far left and then the second gas type in the top row. Table 3: Maximum Allowable Quantity of Gases per Laboratory (Source: NFPA Code, §55) Unsprinklered Sprinklered Areas Materials No gas cabinet, gas room, or exhausted enclosure Gas cabinet, gas room, or exhausted enclosure No gas cabinet, gas room, or exhausted enclosure Gas cabinet, gas room, or exhausted enclosure Corrosive Gas Liquefied Nonliquefied 68 kg (150 lb) 23 m3 (810 ft3) 136 kg (300 lb) 46 m3 (1620 ft3) 136 kg (300 lb) 46 m3 (1620 ft3) 272 kg (600 lb) 92 m3 (3240 ft3) Cryogenic Fluid Liquefied Nonliquefied 0 L (0 gal) 170 L (45 gal) 170 L (45 gal) 340 L (90 gal) 170 L (45 gal) 340 L (90 gal) 170 L (45 gal) 681 L (180 gal) Flammable Gas Liquefied Nonliquefied 114 L (30 gal) 28 m3 (1000 ft3) 227 L (150 gal) 28 m3 (2000 ft3) 227 L (60 gal) 28 m3 (2000 ft3) 454 L (120 gal) 56 m3 (4000 ft3) Highly Toxic Gas Liquefied Nonliquefied 0 kg (0 lb) 0 m3 (0 ft3) 2.3 kg (5 lb) 0.6 m3 (20 ft3) 0 kg (0 lb) 0 m3 (0 ft3) 4.5 kg (10 lb) 1.1 m3 (40 ft3) Nonflammable Gas Liquefied Nonliquefied No Limit No Limit No Limit No Limit No Limit No Limit No Limit No Limit Oxidizing Gas
CHP-10-23-2015.docx