ISO 80000 or IEC 80000, Quantities and units, is an international standard describing the International System of Quantities (ISQ). It was developed and...

by ISO/IEC 80000-3:2007) ISO 31-2: Periodic and related phenomena (replaced by ISO/IEC 80000-3:2007) ISO 31-3: Mechanics (replaced by ISO/IEC 80000-4:2006)...

to space and time. It was superseded in 2006 by ISO 80000-3. Its definitions include: Annex A of ISO 31-1 lists units of space and time based on the foot...

symbols for quantities and units related to mechanics. It is superseded by ISO 80000-4. Its definitions include (note boldfaced symbols mean quantity is a...

from the French "unité astronomique". In the non-normative Annex C to ISO 80000-3:2006 (later withdrawn), the symbol of the astronomical unit was also...

and technology. It was superseded in 2009 by ISO 80000-2:2009 and subsequently revised in 2019 as ISO-80000-2:2019. Its definitions include the following:...

rotating machines. One revolution per minute is equivalent to 1/60 hertz. ISO 80000-3:2019 defines a physical quantity called rotation (or number of revolutions)...

quantities. The system is formally described in a multi-part ISO standard ISO/IEC 80000 (which also defines many other quantities used in science and...

interval [4: ISO 80000-3]. The SI unit of this quantity is thus the reciprocal second (s−1). However, as pointed out in Ref. [4: ISO 80000-3], the designations...

itself is often considered incorrect, with some preferring to use "ky". ISO 80000-3 recommends usage of ka (for kiloannum), which avoids the implicit English...

 449, 484, 485, 487. ISBN 978-81-265-0882-2.(UP1) "ISO 80000-3:2019 Quantities and units — Part 3: Space and time" (2 ed.). International Organization...

other parts of the ISO 31 standard. ISO 31-0 was withdrawn on 17 November 2009. It is superseded by ISO 80000-1. Other parts of ISO 31 have also been withdrawn...

light and related electromagnetic radiations. It is superseded by ISO 80000-7. ISO 31-6 was initially published in 1980, and amended in 1985. It received...

with ISO 31, and are superseded by ISO/IEC 80000. BIPM – publishes freely available information on SI units SI ISO Standards Handbook: Quantities and...

IAU-recognized abbreviation for light-year is "ly", although other standards like ISO 80000:2006 (now superseded) have used "l.y." and localized abbreviations are...

no longer necessary". Use of the gal was deprecated by the standard ISO 80000-3:2006, now superseded. The gal is a derived unit, defined in terms of...

System of Quantities (ISQ), formalized in the international standard ISO 80000-3 (Space and time), and adopted in the International System of Units (SI)...

RYA Navigation Handbook. Southampton: Royal Yachting Association. "ISO 80000-3:2006". International Organization for Standardization. Retrieved 20 July...

case, the term Ma is used in geology literature conforming to ISO 31-1 (now ISO 80000-3) and NIST 811 recommended practices. Traditional style geology...

Linear elasticity Second moment of area Unwrapped phase "ISO 80000-3:2019 Quantities and units — Part 3: Space and time" (2 ed.). International Organization...

other countries. Its use to denote division is not recommended in the ISO 80000-2 standard for mathematical notation. The obelus, a historical glyph consisting...

12–19. ISO 80000:1-2009 § C.3 Brian C.J. Moore (1995). Hearing. Academic Press. p. 11. ISBN 978-0-08-053386-5. ISO 80000-1:2009 § C.2 ISO 80000-3:2006 § 0...

decibel and bel, the neper is a unit defined in the international standard ISO 80000. It is not part of the International System of Units (SI), but is accepted...

Spatial frequency Refractive index Zonal wavenumber ISO 80000-3:2019 Quantities and units – Part 3: Space and time. Rodrigues, A.; Sardinha, R.A.; Pita...

113-01-010; ISO 80000-3:2006, item 3–7 IEC 60050-113:2011, item 113-01-013: "range of a time interval (113-01-10)" ISO 80000-3:2006, item 3–7 U.S. Naval...

ISO 80000-3 2006. Carey 2006, pp. 61–75. ISO 80000-8 2007. D'Amore 2015. Taylor 1995. Ainslie, Halvorsen & Robinson 2022. ANSI/ASA S1.1 2013, entry 3...

quantities and units related to heat. It is superseded by ISO 80000-5. Its definitions include: Annex A of ISO 31-4 lists units of heat based on the foot, pound...

Visual perception Fringe visibility Reciprocal space "ISO 80000-3:2019 Quantities and units — Part 3: Space and time" (2 ed.). International Organization...

applications of the logarithmic scale. For purposes of international standards ISO 80000-3, the dimensionless quantities are referred to as levels. The non-negative...

recognized by the IEC or ISO. ISO 80000-3 describes definitions for quantities and units of space and time. The IEC Standard 60027-3:2002 defines the following...