12A may refer to:
* Media
content rating
A content rating (also known as maturity rating) rates the suitability of TV shows, movies, comic books, or video games to this primary targeted audience. A content rating usually places a media source into one of a number of different categories, ...
s including the following:
**12A, a
current certificate issued by the British Board of Film Classification
**12A issued by the
Irish Film Classification Office
The Irish Film Classification Office (IFCO) () is the organisation responsible for films, television programmes, and some video game classification and censorship within Republic of Ireland, Ireland. Where restrictions are placed by the IFCO, t ...
**12A issued in Malta and Nigeria, documented at
Motion picture content rating system
A motion picture content rating system classifies films based on their suitability for audiences due to their treatment of issues such as sex, violence, or substance abuse, their use of profanity, or other matters typically deemed unsuitable for ...
* A type of
Mazda Wankel engine
The Mazda Wankel engines are a family of Wankel rotary combustion car engines produced by Mazda.
Wankel engines were invented in 1950s by Felix Wankel, a German engineer. Over the years, displacement has been increased and turbocharging ha ...
* Any of the several
highways numbered 12A
* Refrigerant
HC-12a consisting of
propane
Propane () is a three-carbon chain alkane with the molecular formula . It is a gas at standard temperature and pressure, but becomes liquid when compressed for transportation and storage. A by-product of natural gas processing and petroleum ref ...
and
isobutane
Isobutane, also known as ''i''-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. It is an isomer of butane. Isobutane is a colorless, odorless gas.
It is the simplest alkane with a tertiary carbon a ...
, a replacement for
R-12
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