U+33D9 Square Ppm
U+33D9 was added to Unicode in version 1.1 (1993). It belongs to the block
This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is a Square composition of the glyphs
The Wikipedia has the following information about this codepoint:
In science and engineering, the partsper notation is a set of pseudounits to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantityperquantity measures, they are pure numbers with no associated units of measurement. Commonly used are partspermillion (ppm, 10^{−6}), partsperbillion (ppb, 10^{−9}), partspertrillion (ppt, 10^{−12}) and partsperquadrillion (ppq, 10^{−15}). This notation is not part of the International System of Units (SI) system and its meaning is ambiguous.
Representations
System  Representation 

Nº  13273 
UTF8  E3 8F 99 
UTF16  33 D9 
UTF32  00 00 33 D9 
URLQuoted  %E3%8F%99 
HTML hex reference  ㏙ 
Wrong windows1252 Mojibake  ã™ 
Elsewhere
Complete Record
Property  Value 

1.1 (1993)  
SQUARE PPM  
SQUARED PPM  
CJK Compatibility  
Other Symbol  
Common  
Left To Right  
Not Reordered  
Square  


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Any  
✔  
✘  
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—  
NA  
Other  
—  
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Yes  
Yes  


No  
No  
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Other  
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Other  
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None  
Wide  
Not Applicable  
—  
No_Joining_Group  
Non Joining  
Ideographic  
None  
not a number  


U 