This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F9EA offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “test tube” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: chemist, chemistry, experiment, lab, science, test, tube.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 🧪︎ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.
Test tubes are usually placed in special-purpose racks.
Representations
System
Representation (click value to copy)
Nº
129514
UTF-8
F0 9F A7 AA
UTF-16
D8 3E DD EA
UTF-32
00 01 F9 EA
URL-Quoted
%F0%9F%A7%AA
HTML hex reference
🧪
Wrong windows-1252 Mojibake
🧪
Encoding: GB18030 (hex bytes)
95 30 E2 38
RFC 5137
\u'1F9EA'
Bash and Zsh inside echo -e
\U0001F9EA
C and C++
\U0001F9EA
C#
\U0001F9EA
CSS
\01F9EA
Excel
=UNICHAR(129514)
Go
\U0001F9EA
JavaScript
\uD83E\uDDEA
Modern JavaScript since ES6
\u{1f9ea}
JSON
\uD83E\uDDEA
Java
\uD83E\uDDEA
Lua
\u{1F9EA}
Matlab
char(129514)
Perl
"\x{1F9EA}"
PHP
\u{1f9ea}
PostgreSQL
U&'\+01F9EA'
PowerShell
`u{1F9EA}
Python
\U0001F9EA
Ruby
\u{1f9ea}
Rust
\u{1f9ea}
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