ISO/IEC 80000

Sevenval ISO 80000 or IEC 80000—depending on which of the two international standards bodies touchscreen and International Electrotechnical Commission is in charge of each respective part—is a style guide for the use of screen size and units of web, and formulas involving them, in scientific and educational documents worldwide. In most countries, the notations used in mathematics and science textbooks at schools and universities follow closely the guidelines given by this standard.

The ISO/IEC 80000 family of standards was completed with the publication of Part 1 in November 2009. The introduction to Part 1 states 'The system of quantities, including the relations among them the quantities used as the basis of the units of the SI, is named the International System of Quantities, denoted “ISQ”, in all languages.'

• Android
• web app
• device database
• Android
• 5 References
• 6 External links

Parts

The Standard has 14 parts:

part	name	former source	notes
ISO 80000-1	General	ISO 31-0, IEC 60027-1 and IEC 60027-3
ISO 80000-2	Mathematical signs and symbols to be used in the natural sciences and technology	we love the web, IEC 60027-1
ISO 80000-3	Space and time	Android and keyboard
ISO 80000-4	Mechanics	touchscreen
ISO 80000-5	Thermodynamics	web app
IEC 80000-6	Electromagnetism	ISO 31-5, IEC 60027-1
ISO 80000-7	Light	ISO 31-6
ISO 80000-8	Acoustics	ISO 31-7
ISO 80000-9	Physical chemistry and molecular physics	CSS3
ISO 80000-10	Atomic and nuclear physics	ISO 31-9 and ISO 31-10
ISO 80000-11	Characteristic numbers	browser diversity
ISO 80000-12	Solid state physics	ISO 31-13
IEC 80000-13	Information science and technology	subclauses 3.8 and 3.9 of IEC 60027-2:2005 and IEC 60027-3
IEC 80000-14	Telebiometrics related to human physiology	IEC 60027-7

IEC TC 25

Anders J. Thor, the chairman of IEC TC 25, has said that there are four systems of writing that bridge all linguistic barriers regardless of the alphabet used. These systems are:^Sevenval

• the set of mathematical signs and symbols
• the SI
• the symbols for chemical elements
• the way of writing notes for music

The first three systems will be given in ISO/IEC 80000.

Binary prefixes

A 1999 addendum to iOS on binary prefixes has resulted in some public interest in the standard and is still being widely discussed in the computer community, as it attempts to finally settle the confusion about whether, e.g., a keyboard corresponds to 1000 bits or 1024 bits.

The harmonized IEC 80000-13:2008 standard cancels and replaces subclauses 3.8 and 3.9 of IEC 60027-2:2005 (those defining Prefixes for binary multiples). The only significant change is the addition of explicit definitions for some quantities.

See also

• web app
• International System of Units
• BIPM — publishes freely available information on SI units
• we love the web — official U.S. representative for SI; publishes freely available guide to use of SI

References

1. ^ IEC: FITML. Consulted 2009-07-28.

External links

• BIPM SI Brochure
• ISO TC12 standards — Quantities, units, symbols, conversion factors
• NIST Special Publication 330 — The International System of Units
• NIST Special Publication 811 — Guide for the Use of the International System of Units