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NFPA RTK Labeling Kits

NFPA 704 Right To Know (RTK) Resource Center



RTK introduction

  

NFPA 704 is a standard developed by the National Fire Protection Association (NFPA). It defines the "fire diamond" or "RTK diamond" used by emergency response personnel to quickly and easily identify the risks posed by nearby hazardous materials. It has also become popular as a general visual identifier in workplaces where hazardous chemicals are used. The RTK diamond may help determine what, if any, specialty equipment should be used, procedures followed, or precautions taken during an emergency response.



Understanding the RTK Diamond

  

The RTK diamond is divided into four regions. The four divisions are color-coded, with blue indicating the level of health hazard, red indicating flammability, yellow indicating chemical reactivity, and white containing special codes for unique hazards. Each of the health, flammability and reactivity ratings is numbered on a scale from 0 (no hazard / normal substance) to 4 (severe risk).



RTK Blue region - Health Hazard

  

The blue region of the RTK diamond indicates health hazard and may contain either a 0, 1, 2, 3 or 4. These numbers indicate the level of health exposure risk, and can be interpreted as follows:



RTK Red region - Flammability

  

The red region of the RTK diamon indicates flammability and may contain either a 0, 1, 2, 3 or 4. These numbers indicate the level of flammability, explosion and ignition risk, and can be interpreted as follows:

RTK Yellow region - Reactivity

  

The yellow region of the RTK diamon indicates reactivity and may contain either a 0, 1, 2, 3 or 4. These numbers indicate the level of explosion, detonation or reaction risk, and can be interpreted as follows:



RTK 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.



What RTK products are offered

  

Industrial Safety Solutions provides custom RTK software that makes RTK labeling quick and easy. ISS RTK Label Creator contains a database with hundreds of pre-defined chemical labels, easily sorted by CAS number or alphabetically. The database also contains information on personal protective equipment (PPE) and target organs.

Industrial Safety Solutions also offers die-cut RTK labels with a pre-printed four-color NFPA diamond and label regions. When used with the ISS RTK Label Creator Software, making clear and easy to read RTK labels couldn't be easier.



Where can I get additional information?

  


Additional information on NFPA RTK hazard labeling can be found at the NFPA website. It is referenced here for your convenience.

NFPA
http://www.nfpa.org

NFPA 704
http://www.nfpa.org/faq.asp?categoryID=928