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NFPA Numbers and Symbols
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Numbers & symbols components implement NFPA Panels and are sold in packages of 10 identical numbers or symbols except 6", which contains 5 per pack. To order Panels see NFPA Panels.
Blue
Panel specifies health hazard: Deadly- 4, Extreme Danger- 3,
Hazardous- 2, Slightly Hazardous-1, and if normal material- 0.
Red
Panel specifies fire hazard: Flash points below 73°- 4, below 100°- 3,
below 200°- 2, above 200°- 1 and if material will not burn- 0.
Yellow
Panel specifies reactivity: May detonate- 4, shock and heat may
detonate- 3, violent chemical change- 2. unstable if heated- 1 and if
product is completely stable- 0.
White Panel Specifies a specific hazard: Use no water- (No Water Symbol), Radioactive- (Radioactive Symbol), Oxygen- OXY, Acid- ACID, Alkali- ALK and Corrosive- COR.
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