ব্যবহার   This template produces a NFPA 704 fire diamond with optionally four hazard codes. It is designed to be used in a table. Outside of a wikitable, showing is not controlled.  Primary use is through , the  box and  (chemical data pages).  Parameters {{NFPA 704 diamond  | F =   | H =   | R =    | S =   | ref =  | showimage =  | background = }}  Flammability code, 0-4 or - (hyphen for blank) Health code Reactivity code 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 , ,             (hyphen) Parameters , ,  accept codes 0, 1, 2, 3, 4. Code - (hyphen) is accepted too and produces a blank ("no hazard code").  A blank can be set (enforced) by entering , 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)   <blank>  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  (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 =&nbsp; code produces an error, but entering the nbsp character (> <) is accepted as a space (blank).  Special hazard options       (hyphen)            For W enter .  For W OX enter ,  or .  The "Special" quarter is sometimes called "Other".  Unknown codes (error) The diamond template checks for unknown codes.           Articles with unknown codes are listed for maintenance (correction) in :Category:Articles with unknown NFPA 704 code. Other pages (like this documentation) are not categorized, but have a message instead. This categorizing can be switched off by setting   Note that =&nbsp; code produces an error, but entering the nbsp character (= ) is accepted as a space (blank).  Adding references References can be added using .  |ref=<ref>{{cite web|url=http://chemlabs.uoregon.edu/Safety/NFPA_White.html|title=More on white codes}}</ref>  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).       Code description These are the title texts (mousehover texts), shown for a code used in the diamond. They are plain text; not links or styles can be entered.  Code descriptions input type  quarter  code  text      code F 0   code F 1   code F 2   code F 3   code F 4   code H 0   code H 1   code H 2   code H 3   code H 4   code R 0   code R 1   code R 2   code R 3   code R 4   code S  OX   code S  W   code S  W   (see code W) code S  SA   code S  COR   code S  BIO   code S  CRYO   code S  ACID   code S  ALK   code S  RA   code S  W OX   code S  WOX   blank F F=<blank>   blank H H=<blank>   blank R R=<blank>   blank S S=<blank>   blank F (no param)   blank H (no param)   blank R (no param)   blank S (no param)   blank F -   blank H -   blank R -   blank S -   unknown F  xyz   unknown H  xyz   unknown R  xyz   unknown S  xyz    Color style Option . Default is .  Colors used  Red  Blue  Yellow  White 4 2 3 SA #ff6666 #6691ff #fcff66 #ffffff  Better not to use RGB colors named red, blue, yellow, because these produce a bad contrast with the text.   আরও দেখুন   :Category:Articles with unknown NFPA 704 code  :File:NFPA 704.svg -- The background diamond image      Demo references The references are from the demos.  <includeonly> {{#ifeq:|sandbox||  {{#ifeq:|খেলাঘর | |