Room temperature | Wikipedia audio article


Colloquially, room temperature is the range
of air temperatures that most people prefer for indoor settings, which feel comfortable
when wearing typical indoor clothing. Human comfort can extend beyond this range
depending on humidity, air circulation and other factors. In certain fields, like science and engineering,
and within a particular context, room temperature can mean different agreed-on ranges. In contrast, ambient temperature is the actual
temperature of the air (or other medium and surroundings) in any particular place, as
measured by a thermometer. It may be very different from usual room temperature,
for example an unheated room in winter.==Comfort levels==The American Heritage Dictionary of the English
Language identifies room temperature as around 20 to 22 °C (68 to 72 °F), while the Oxford
English Dictionary states that it is “conventionally taken as about 20 °C (68 °F)”.Owing to variations
in humidity and likely clothing, recommendations for summer and winter may vary; a suggested
typical range for summer is 23 to 25.5 °C (73 to 78 °F), with that for winter being
20 to 23.5 °C (68 to 74 °F), although by other considerations the maximum should be
below 24 °C (75 °F) – and to avoid sick building syndrome, below 22 °C (72 °F).Some
studies have suggested that thermal comfort preferences of men and women may differ significantly,
with women on average preferring higher ambient temperatures.The World Health Organization’s
standard for comfortable warmth is 18 °C (64 °F) for normal, healthy adults who are
appropriately dressed. For those with respiratory problems or allergies,
they recommend no less than 16 °C (61 °F), and for the sick, disabled, very old or very
young, a minimum of 20 °C (68 °F).==Definitions in science and industry==
Temperature ranges are defined as room temperature for certain products and processes in industry,
science, and consumer goods. For instance, for the shipping and storage
of pharmaceuticals, the United States Pharmacopeia-National Formulary (USP-NF) defines controlled room
temperature as between 20 to 25 °C (68 to 77 °F), with excursions between 15 to 30
°C (59 to 86 °F) allowed, provided the mean kinetic temperature does not exceed 25 °C
(77 °F). The European Pharmacopoeia defines it as being
simply 15 to 25 °C (59 to 77 °F), and the Japanese Pharmacopeia defines “ordinary temperature”
as 15 to 25 °C (59 to 77 °F), with room temperature being 1 to 30 °C (34 to 86 °F). Merriam-Webster gives as a medical definition
a range of 15 to 25 °C (59 to 77 °F) as being suitable for human occupancy, and at
which laboratory experiments are usually performed.==Serving temperature of red wine==
People traditionally serve red wine at room temperature. This practice dates from before central heating,
when room temperature in wine-drinking countries was considerably lower than it is today, usually
in the range between 15 °C (59 °F) and 18 °C (64 °F). It is therefore advised to serve red wine
at a temperature of at most 18 °C (64 °F).==See
also==Thermal comfort
Standard conditions for temperature and pressure ISO 1

Add a Comment

Your email address will not be published. Required fields are marked *