Template:NFPA 704

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NFPA 704 safety square
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> {{{caption}}} goes here

See basic NFPA 704 diamond documentation below.

This box has one additional parameter: |caption=Caption goes here

This template produces a NFPA 704 safety square with optionally four hazard codes. It is designed to be used in a table.

Primary use is through {{Chembox}}, the {{NFPA 704}} box and {{OrganicBox complete}} (chemical data pages).

When used stand-alone (outside of a table), consider the {{NFPA 704}} box.

Parameters

{{NFPA 704 diamond | H = | F = | I = | S = | ref = | showimage = | background = }}

Health code, 0-4 or - (hyphen for blank) Flammability code Instability (reactivity) code ("R=" is also allowed) Special code W, OX, W+OX, ..., or - (hyphen for blank) References. Add the <ref> ... </ref> tags. Set =no to show text instead ('RA' only. Default: =yes, show image) background color (e.g., =yellow or =#ff7623) }}

Input options

Main rule: if the quarter must be blank, input is the hyphen, -. Do not depend on default behavior in this situation.

Basic 0–4 and - (hyphen)

for |H=, |F=, |I=
<syntaxhighlight lang="text" class="" style="" inline="1">=0</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=1</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=2</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=3</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=4</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=-</syntaxhighlight> (hyphen)
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chloride poly 300 0 450 150 300 300 150 150 Flammability 0: Will not burn. E.g. water poly 450 150 600 300 450 450 300 300 Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 0 0 0	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine poly 300 0 450 150 300 300 150 150 Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil poly 450 150 600 300 450 450 300 300 Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 1 1 1	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform poly 300 0 450 150 300 300 150 150 Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel poly 450 150 600 300 450 450 300 300 Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 2 2 2	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas poly 300 0 450 150 300 300 150 150 Flammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasoline poly 450 150 600 300 450 450 300 300 Instability 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. hydrogen peroxide poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 3 3 3	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas poly 300 0 450 150 300 300 150 150 Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane poly 450 150 600 300 450 450 300 300 Instability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerin poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 4 4 4	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap>

Parameters |H=, |F=, |I= accept codes 0, 1, 2, 3, 4, -. Code - (hyphen) produces a blank ("no hazard code").

A blank can be set (enforced) by entering <syntaxhighlight lang="text" class="" style="" inline="1">=-</syntaxhighlight>, a hyphen. This is the preferred way to reflect what the source states (don't depend on the default blank in this situation).

Default code (blank)

<syntaxhighlight lang="text" class="" style="" inline="1">=</syntaxhighlight> <blank>

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap>

All four codes default to blank, that is: no NFPA code is present or shown. There is no specific text (just a link to the NFPA color section). Note that a blank is not the same as code "0". Code "0" is an explicit statement, while a blank is the absence of any statement.

A blank can also be enforced by entering <syntaxhighlight lang="text" class="" style="" inline="1">=-</syntaxhighlight> (hyphen). This is the preferred way to reflect what the source states (do not depend on default).

From the input, spaces and even newlines (all whitespace) are treated as blank. Note that =  code produces an error, but entering the nbsp character (><syntaxhighlight lang="text" class="" style="" inline="1">=</syntaxhighlight> <) is accepted as a space (blank).

Special hazard options

|S=W	|S=OX	|S=W+OX	|S=SA	|S=- (hyphen)
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid desc none </imagemap> W	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard OX: Oxidizer. E.g. potassium perchlorate desc none </imagemap> OX	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard W+OX: Reacts with water in an unusual or dangerous manner AND is oxidizer desc none </imagemap> W OX	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard SA: Simple asphyxiant gas. E.g. nitrogen, helium desc none </imagemap> SA	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap>
|S=ACID	|S=ALK	|S=COR	|S=CRYO	|S=POI
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard ACID: Acid desc none </imagemap> ACID	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard ALK: Alkaline desc none </imagemap> ALK	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard COR: Corrosive; strong acid or base. E.g. sulfuric acid, potassium hydroxide desc none </imagemap> COR	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard CRYO: Cryogenic desc none </imagemap> CRYO	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard POI: Poisonous desc none </imagemap> POI
|S=RA |showimage=<default>	|S=RA |showimage=yes	|S=RA |showimage=no
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard RA: Radioactive. E.g. plutonium desc none </imagemap>	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard RA: Radioactive. E.g. plutonium desc none </imagemap>	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard RA: Radioactive. E.g. plutonium desc none </imagemap> RA
|S=BIO |showimage=<default>	|S=BIO |showimage=yes	|S=BIO |showimage=no
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard BIO: Biohazardous. E.g. smallpox virus desc none </imagemap>	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard BIO: Biohazardous. E.g. smallpox virus desc none </imagemap>	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard BIO: Biohazardous. E.g. smallpox virus desc none </imagemap> BIO

For W enter |S=W.

For W OX enter |S=W+OX, |S=W OX or |S=WOX.

The "Special" quarter is sometimes called "Other".

Unknown codes (error)

The diamond template checks for unknown codes.

<syntaxhighlight lang="text" class="" style="" inline="1">=abc</syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">= </syntaxhighlight>	<syntaxhighlight lang="text" class="" style="" inline="1">=abc</syntaxhighlight> |cat=no
<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 [[NFPA 704#Blue|]] poly 300 0 450 150 300 300 150 150 [[NFPA 704#Red|]] poly 450 150 600 300 450 450 300 300 [[NFPA 704#Yellow|]] poly 300 300 450 450 300 600 150 450 [[NFPA 704#White|]] desc none </imagemap> H=abc NFPA code error. F=klm NFPA code error. I=pqr NFPA code error. S=XYZ NFPA code error.	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 [[NFPA 704#Blue|]] poly 300 0 450 150 300 300 150 150 [[NFPA 704#Red|]] poly 450 150 600 300 450 450 300 300 [[NFPA 704#Yellow|]] poly 300 300 450 450 300 600 150 450 [[NFPA 704#White|]] desc none </imagemap> H=  NFPA code error. F=  NFPA code error. I=  NFPA code error. S=&NBSP; NFPA code error.	<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 [[NFPA 704#Blue|]] poly 300 0 450 150 300 300 150 150 [[NFPA 704#Red|]] poly 450 150 600 300 450 450 300 300 [[NFPA 704#Yellow|]] poly 300 300 450 450 300 600 150 450 [[NFPA 704#White|]] desc none </imagemap>

Articles with unknown codes are listed for maintenance (correction) in Category:Articles with unknown NFPA 704 code (0). Other pages (like this documentation) are not categorized, but have a message instead. This categorizing can be switched off by setting |cat=no

Note that =  code produces an error, but entering the nbsp character (= ) is accepted as a space (blank).

Adding references

References can be added using |ref=.

|ref=<ref>{{cite web|url=http://chemlabs.uoregon.edu/Safety/NFPA_White.html|title=More on white codes}}</ref>

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform poly 300 0 450 150 300 300 150 150 Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel poly 450 150 600 300 450 450 300 300 Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 2 2 2

The <ref> ... </ref> tags should be added. Multiple references can be entered. Depending on cell width, the links show above or next to the diamond. While technically possible to enter plain text, this is not supported (and this could be disallowed in the future).

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap>

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard RA: Radioactive. E.g. plutonium desc none </imagemap> RA

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard OX: Oxidizer. E.g. potassium perchlorate desc none </imagemap> OX

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health (blue): no hazard code poly 300 0 450 150 300 300 150 150 Flammability (red): no hazard code poly 450 150 600 300 450 450 300 300 Instability (yellow): no hazard code poly 300 300 450 450 300 600 150 450 Special hazard OX: Oxidizer. E.g. potassium perchlorate desc none </imagemap> OX

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform poly 300 0 450 150 300 300 150 150 Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel poly 450 150 600 300 450 450 300 300 Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 2 2 2

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chloride poly 300 0 450 150 300 300 150 150 Flammability 0: Will not burn. E.g. water poly 450 150 600 300 450 450 300 300 Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 0 0 0

[9] <imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine poly 300 0 450 150 300 300 150 150 Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil poly 450 150 600 300 450 450 300 300 Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 1 1 1

"some title". <imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform poly 300 0 450 150 300 300 150 150 Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel poly 450 150 600 300 450 450 300 300 Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 2 2 2

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas poly 300 0 450 150 300 300 150 150 Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane poly 450 150 600 300 450 450 300 300 Instability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerin poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 4 4 4

List of codes

Code descriptions ()
input type	quarter	code	text
code	H	0	Health 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chloride
code	H	1	Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine
code	H	2	Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform
code	H	3	Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas
code	H	4	Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas
code	F	0	Flammability 0: Will not burn. E.g. water
code	F	1	Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil
code	F	2	Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel
code	F	3	Flammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasoline
code	F	4	Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane
code	I	0	Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen
code	I	1	Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium
code	I	2	Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus
code	I	3	Instability 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. hydrogen peroxide
code	I	4	Instability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerin
code	S	OX	Special hazard OX: Oxidizer. E.g. potassium perchlorate
code	S	W, W, <s>W</s>	Special hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
code	S	W+OX, WOX	Special hazard W+OX: Reacts with water in an unusual or dangerous manner AND is oxidizer
code	S	ACID	Special hazard ACID: Acid
code	S	ALK	Special hazard ALK: Alkaline
code	S	BIO	Special hazard BIO: Biohazardous. E.g. smallpox virus
code	S	COR	Special hazard COR: Corrosive; strong acid or base. E.g. sulfuric acid, potassium hydroxide
code	S	CRYO	Special hazard CRYO: Cryogenic
code	S	POI	Special hazard POI: Poisonous
code	S	RA	Special hazard RA: Radioactive. E.g. plutonium
hyphen	H	-	Health (blue): no hazard code
hyphen	F	-	Flammability (red): no hazard code
hyphen	I	-	Instability (yellow): no hazard code
hyphen	S	-	Special hazards (white): no code
blank	H	<blank>	Health (blue): no hazard code
blank	F	<blank>	Flammability (red): no hazard code
blank	I	<blank>	Instability (yellow): no hazard code
blank	S	<blank>	Special hazards (white): no code
no letter
no letter		3
no letter		9
no letter		WOX
unknown	H	xyz
unknown	F	xyz
unknown	I	xyz
unknown	S	xyz

Color style

Option |background=green. Default is <syntaxhighlight lang="text" class="" style="" inline="1">transparent</syntaxhighlight>.

<imagemap> File:NFPA 704.svg|80px|alt=NFPA 704 four-colored diamond poly 150 150 300 300 150 450 0 300 Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform poly 300 0 450 150 300 300 150 150 Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel poly 450 150 600 300 450 450 300 300 Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus poly 300 300 450 450 300 600 150 450 Special hazards (white): no code desc none </imagemap> 2 2 2

Colors used

Blue	Red	Yellow	White
1	4	3	SA
#6691ff	#ff6666	#fcff66	#ffffff

Better not to use RGB colors named blue, red, yellow, because these produce a bad contrast with the text.

Template data

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:NFPA 704 in articles based on its TemplateData.

TemplateData for NFPA 704

No description.

Template parameters[Edit template data]

Parameter		Description	Type	Status
Health (blue)	H	no description Suggested values 0, 1, 2, 3, 4, -	String	optional
Flammability (red)	F	no description Suggested values 0, 1, 2, 3, 4, -	String	optional
Instability, Reactivity (yellow)	I R	no description Suggested values 0, 1, 2, 3, 4, -	String	optional
Special code (white)	S	no description Suggested values OX, W, WOX, W+OX, ACID, ALK, BIO, COR, CRYO, RA	String	optional
background	background	no description	Unknown	optional
ref	ref	no description	Unknown	optional
showimage	showimage	shows S image when available	Boolean	optional
cat	cat	no description	Unknown	optional

Known issues

• Is there an ENGVAR-like switch needed, eg for the order of °C - °F temperatures? (Currently, °C is first)
• For documentation, could use a diamond with the four letters in the quadrants.
• The non-standard S (on white) codes should be complete, and maybe listed for attention.

Tracking category

• Category:Articles with unknown NFPA 704 code (0)

See also

• File:NFPA 704.svg -- The background diamond image
• {{NFPA 704}} -- in a stand alone box
• {{NFPA 704 diamond/text}}

References

These references will appear in the article, but this list appears only on this page.

The references are from the demos in this documentation.

The above documentation is transcluded from Template:NFPA 704/doc. (edit | history)
Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages.
Add categories to the /doc subpage. Subpages of this template.