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NFPA 704 Diamond Information: White Segment

White region - Special

The white region of the RTK diamond may contain a number of special symbols. "W", with or without a strikeout, may be used to represent a reaction with water ("use no water"). "OX" or "OXY" may be used to represent an oxidizer. "COR" may be used to represent a strongly corrosive acid or base. "ACID" and "ALK" may be used to be more specific. "BIO" may be used to denote a biohazardous material. "CRYO" may be used to indicate a cryogenic. The radioactive trefoil may also be used.

  • More information on the RED NFPA DIAMOND segment
  • More information on the NFPA DIAMOND BLUE segment
  • More information on the NFPA DIAMOND YELLOW segment
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