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Encyclopedia > NFPA 704
NFPA 704
Fire diamond for Sodium borohydride

NFPA 704 is a standard maintained by the U.S. National Fire Protection Association. It defines the colloquial "fire diamond" used by emergency personnel to quickly and easily identify the risks posed by nearby hazardous materials. This is necessary to help determine what, if any, specialty equipment should be used, procedures followed, or precautions taken during the first moments of an emergency response. Image File history File links NFPA_704. ... Sodium borohydride, also known as sodium tetrahydroborate, has the chemical formula NaBH4. ... Motto: (Out Of Many, One) (traditional) In God We Trust (1956 to date) Anthem: The Star-Spangled Banner Capital Washington D.C. Largest city New York City None at federal level (English de facto) Government Federal constitutional republic  - President George Walker Bush (R)  - Vice President Dick Cheney (R) Independence from... The National Fire Protection Association (established 1896) is an independent, voluntary-membership, nonprofit (tax-exempt) organization. ...



Two Nalgene bottles containing the NFPA 704 color code for hazardous materials identification.

The four divisions are typically color-coded, with blue indicating level of health hazard, red indicating flammability, yellow (chemical) reactivity, and white containing special codes for unique hazards. Each of health, flammability and reactivity is rated on a scale from 0 (no hazard; normal substance) to 4 (severe risk). Image File history File links Metadata Size of this preview: 537 × 599 pixelsFull resolution (1944 × 2169 pixel, file size: 361 KB, MIME type: image/jpeg) File historyClick on a date/time to view the file as it appeared at that time. ... Image File history File links Metadata Size of this preview: 537 × 599 pixelsFull resolution (1944 × 2169 pixel, file size: 361 KB, MIME type: image/jpeg) File historyClick on a date/time to view the file as it appeared at that time. ... Nalgene (sometimes referred to as Nalge Nunc International) is a distributor and manufacturer of plastic laboratory containers that has diversified into the field of containers for outdoor sports. ... Look up hazard in Wiktionary, the free dictionary. ... Flammable or Flammability refers to the ease at which a substance will ignite, causing fire or combustion. ... Reactivity refers to the rate at which a chemical substance tends to undergo a chemical reaction in time. ...


  • 4.  Very short exposure could cause death or major residual injury (e.g., hydrogen cyanide).
  • 3.  Short exposure could cause serious temporary or residual injury (e.g., chlorine gas).
  • 2.  Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g., chloroform).
  • 1.  Exposure would cause irritation with only minor residual injury (e.g., turpentine).
  • 0.  Poses no health hazard, no precautions necessary. (e.g., lanolin).

R-phrases , , , , . S-phrases , , , , , , , , . Flash point −17. ... General Name, Symbol, Number chlorine, Cl, 17 Series halogens Group, Period, Block 17 (VIIA), 3, p Density, Hardness 3. ... R-phrases , , , S-phrases , Flash point Non-flammable U.S. Permissible exposure limit (PEL) 50 ppm (240 mg/m3) (OSHA) Supplementary data page Structure and properties n, εr, etc. ... For the band, see Turpentine (band). ... Lanolin, also called Adeps Lanae, wool wax, wool fat, or wool grease, a greasy yellow substance from wool-bearing animals, acts as a skin ointment, water-proofing wax, and raw material (such as in shoe polish). ...


  • 4.  Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily (e.g., propane). Flash point below 23°C (73°F).
  • 3.  Liquids and solids that can be ignited under almost all ambient temperature conditions (e.g., gasoline). Flash point below 38°C (100°F) but above 23°C (73°F).
  • 2.  Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur (e.g., diesel fuel). Flash point between 38°C (100°F) and 93°C (200°F).
  • 1.  Must be pre-heated before ignition can occur (e.g., canola oil). Flash point over 93°C (200°F).
  • 0.  Will not burn (e.g., Argon).

Propane is a three-carbon alkane, normally a gas, but compressible to a liquid that is transportable. ... For other uses, see Flash point (disambiguation). ... Petrol redirects here. ... This article is about the fuel. ... For the figure in Celtic mythology see agriculture, canola are certain varieties of plants from which we get rapeseed oil, or the oil produced from those varieties. ... General Name, symbol, number argon, Ar, 18 Chemical series noble gases Group, period, block 18, 3, p Appearance colorless Standard atomic weight 39. ...


  • 4.  Readily capable of detonation or explosive decomposition at normal temperatures and pressures (e.g., trinitrotoluene).
  • 3.  Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked (e.g., fluorine).
  • 2.  Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water (e.g., phosphorus).
  • 1.  Normally stable, but can become unstable at elevated temperatures and pressures (e.g., calcium).
  • 0.  Normally stable, even under fire exposure conditions, and is not reactive with water (e.g., helium).

A weapons cache is detonated at the East River Range on Bagram Airfield, Afghanistan Detonation is a process of supersonic combustion in which a shock wave is propagated forward due to energy release in a reaction zone behind it. ... Preparing C-4 explosive This article is concerned solely with chemical explosives. ... R-phrases S-phrases Related Compounds Related compounds picric acid hexanitrobenzene Except where noted otherwise, data are given for materials in their standard state (at 25 Â°C, 100 kPa) Infobox disclaimer and references Trinitrotoluene (TNT) is a chemical compound with the formula C6H2(NO2)3CH3. ... Distinguished from fluorene and fluorone. ... General Name, symbol, number phosphorus, P, 15 Chemical series nonmetals Group, period, block 15, 3, p Appearance waxy white/ red/ black/ colorless Standard atomic weight 30. ... For other uses, see Calcium (disambiguation). ... For other uses, see Helium (disambiguation). ...


The white "banda" area can contain several symbols:

Note: Only 'W' and 'OXY' are officially part of the NFPA 704 standard, but other self-explanatory symbols are occasionally used in an unofficial manner. Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... General Name, Symbol, Number caesium, Cs, 55 Chemical series alkali metals Group, Period, Block 1, 6, s Appearance silvery gold Standard atomic weight 132. ... For sodium in the diet, see Edible salt. ... An oxidizing agent is a substance that oxidizes another substance in electrochemistry or redox chemical reactions in general. ... Potassium perchlorate, chemical formula KClO4, is a strong oxidizer. ... Corrosion is the destructive reaction of a metal with another material, e. ... For other uses, see Acid (disambiguation). ... Acids and bases: Acid-base extraction Acid-base reaction Acid dissociation constant Acidity function Buffer solutions pH Proton affinity Self-ionization of water Acids: Lewis acids Mineral acids Organic acids Strong acids Superacids Weak acids Bases: Lewis bases Organic bases Strong bases Superbases Non-nucleophilic bases Weak bases edit In... R-phrases S-phrases , , , Flash point Non-flammable Related Compounds Related strong acids Selenic acid Hydrochloric acid Nitric acid Related compounds Hydrogen sulfide Sulfurous acid Peroxymonosulfuric acid Sulfur trioxide Oleum Supplementary data page Structure and properties n, εr, etc. ... The chemical compound potassium hydroxide, (KOH) sometimes known as caustic potash, potassa, potash lye, and potassium hydrate, is a metallic base. ... The international biological hazard symbol Immediate disposal of used needles into a sharps container is standard procedure. ... Smallpox (also known by the Latin names Variola or Variola vera) is a contagious disease unique to humans. ... Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles. ... Architecture Architectural Trefoil (also a Christian symbol) Trefoil (from Latin trifolium, three-leaved plant, French trèfle, German Dreiblatt and Dreiblattbogen) is a term in Gothic architecture given to the ornamental foliation or cusping introduced in the heads of window-lights, tracery, panellings, etc. ... Image File history File links Radioactive. ... General Name, Symbol, Number plutonium, Pu, 94 Chemical series actinides Group, Period, Block n/a, 7, f Appearance silvery white Standard atomic weight (244) g·mol−1 Electron configuration [Rn] 5f6 7s2 Electrons per shell 2, 8, 18, 32, 24, 8, 2 Physical properties Phase solid Density (near r. ... Cryogenics is the study of very low temperatures or the production of the same, and is often confused with cryobiology, the study of the effect of low temperatures on organisms, or the study of cryopreservation. ...

See also

  • HMIS Color Bar
  • Hazchem
  • Hazmat

HMIS (Hazardous Materials Identification System) is a numerical hazard rating that incorporates the use of labels with color-coded bars as well as training materials. ... A sample Hazchem plate Hazchem is a warning plate system used on UK and Australian vehicles transporting hazardous substances, and on storage facilities housing such substances. ... HAZMAT is an abbreviation of “Hazardous Material”. Hazardous materials are any substances (solids, liquids, or gases) that are dangerous to the well-being of humans, animals, or the environment. ...


  • University of Oregon Chem Labs - NFPA Hazard Identification System

External links

  • Listing of NFPA Ratings for many chemicals
  • About NFPA 704: Standard for the Identification of Hazards of Materials for Emergency Response

  Results from FactBites:
NFPA 704 Diamonds, Labels and Fire Signs (399 words)
Following NFPA label rules and regulations relating to proper signage is critical in the event of an emergency.
The mission of the international nonprofit NFPA is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.
NFPA's 300 codes and standards influence every building, process, service, design, and installation in the United States, as well as many of those used in other countries.
Hazard Identification For Emergency Response - NFPA 704 (658 words)
NFPA 704 is a standard for the Identification of the Hazards of Materials for Emergency Response.
Commonly known as the NFPA diamond, the four section multicolor diamond shape is displayed on the outside doors or walls or inside facilities that use chemicals in their daily processes.
The purpose of NFPA 704 is to inform responders to fires, spills or other emergencies of the hazards of the material contained in the facilities.
  More results at FactBites »



Jag Chagger
27th May 2010
What the hell does HMCIS/HMIS stand for?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

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