ISO 31
ISO 31(Quantitiesandunits,International Organization for Standardization,1992) is a superseded international standard concerningphysical quantities,units ofmeasurement,their interrelationships and their presentation.[1]It was revised and replaced byISO/IEC 80000.
Parts
[edit]The standard comes in 14 parts:
- ISO 31-0:General principles (replaced byISO/IEC 80000-1:2009)
- ISO 31-1:Spaceandtime(replaced byISO/IEC 80000-3:2007)
- ISO 31-2:Periodic and relatedphenomena(replaced byISO/IEC 80000-3:2007)
- ISO 31-3:Mechanics (replaced byISO/IEC 80000-4:2006)
- ISO 31-4:Heat(replaced byISO/IEC 80000-5)
- ISO 31-5:Electricityandmagnetism(replaced byISO/IEC 80000-6)
- ISO 31-6:Lightand relatedelectromagnetic radiations(replaced byISO/IEC 80000-7)
- ISO 31-7:Acoustics(replaced byISO/IEC 80000-8:2007)
- ISO 31-8:Physicalchemistryandmolecular physics(replaced byISO/IEC 80000-9)
- ISO 31-9:Atomic andnuclear physics(replaced byISO/IEC 80000-10)
- ISO 31-10:Nuclear reactionsandionizing radiations(replaced byISO/IEC 80000-10)
- ISO 31-11:Mathematical signs andsymbolsfor use in the physical sciences andtechnology(replaced byISO 80000-2:2009)
- ISO 31-12:Characteristic numbers(replaced byISO/IEC 80000-11)
- ISO 31-13:Solid state physics(replaced byISO/IEC 80000-12)
A second international standard on quantities and units wasIEC 60027.[2]The ISO 31 and IEC 60027 Standards were revised by the two standardization organizations in collaboration ([1],[2]) to integrate both standards into a joint standardISO/IEC 80000 - Quantities and Unitsin which the quantities and equations used with SI are to be referred as theInternational System of Quantities(ISQ). ISO/IEC 80000 supersedes both ISO 31 and part of IEC 60027.
Coined words
[edit]ISO 31-0introduced several new words into theEnglish languagethat are direct spelling-calquesfrom theFrench.[3]Some of these words have been used in scientific literature.[4][5][6][7]
New phrase | Existing phrase | Technical meaning |
---|---|---|
massic <quantity> | specific <quantity> | a quantity divided by its associated mass |
volumic <quantity> | [volumic] <quantity> density | a quantity divided by its associated volume |
areic <quantity> | surface <quantity> density | a quantity divided by its associated area |
lineic <quantity> | linear <quantity> density | a quantity divided by its associated length |
Related national standards
[edit]- Canada:CAN/CSA-Z234-1-89 Canadian Metric Practice Guide (covers some aspects of ISO 31-0, but is not a comprehensive list of physical quantities comparable to ISO 31)
- United States:There are several nationalSIguidance documents, such asNIST SP 811,NIST SP 330,NIST SP 814,IEEE/ASTM SI 10, SAE J916. These cover many aspects of the ISO 31-0 standard, but lack the comprehensive list of quantities and units defined in the remaining parts of ISO 31.
See also
[edit]- SI– the international system of units
- BIPM– publishes freely available information on SI units[3],which overlaps with some of the material covered inISO 31-0
- IUPAP– much of the material in ISO 31 comes originally from Document IUPAP-25 of theCommission for Symbols, Units and Nomenclature(SUN Commission)[4]of theInternational Union of Pure and Applied Physics
- IUPAC– some of the material in ISO 31 originates from theInterdivisional Committee on Terminology, Nomenclature and Symbols[5]of theInternational Union of Pure and Applied Chemistry
- Quantities, Units and Symbols in Physical Chemistry– this IUPAC "Green Book" covers many ISO 31 definitions
- IEC 60027Letter symbols to be used in electrical technology
- ISO 1000SI Units and Recommendations for the use of their multiples and of certain other units (bundled with ISO 31 as theISO Standards Handbook – Quantities and units)
Notes
[edit]- ^"ISO 31-0:1992 Quantities and units — Part 0: General principles".International Organization for Standardization.Retrieved8 May2021.
- ^Tolga, G. O. K. (2016). The importance of symbols and units in natural science. The Eurasia Proceedings of Educational and Social Sciences, 4, 165-167.
- ^NIST SP811(§8.9)
- ^Mills, I. (1993). Quantities, units and symbols in physical chemistry/prepared for publication by Ian Mills...[et al.]. Oxford; Boston: Blackwell Science; Boca Raton, Fla.: CRC Press [distributor].
- ^Taylor, B. (1995). Guide for the use of the International System of Units (SI): the metric system. DIANE Publishing.
- ^Dietrich, P. M.; Streeck, C.; Glamsch, S.; Ehlert, C.; Lippitz, A.; Nutsch, A.; Beckhoff, B.; W. E. S., Unger (2015)."Quantification of silane molecules on oxidized silicon: are there options for a traceable and absolute determination?".Analytical Chemistry.87(19): 10117–10124.doi:10.1021/acs.analchem.5b02846.PMID26334589.
- ^Sertlek, H. Ö.; Slabbekoorn, H.; Ten Cate, C.; Ainslie, M. A. (2019). "Source specific sound mapping: Spatial, temporal and spectral distribution of sound in the Dutch North Sea".Environmental Pollution.247:1143–1157.doi:10.1016/j.envpol.2019.01.119.PMID30823343.
References
[edit]- International Organization for Standardization(1993).ISO Standards Handbook: Quantities and units(3rd ed.). Geneva: ISO.ISBN92-67-10185-4.(contains both ISO 31 andISO 1000)
- Cohen, E. R.; Giacomo, P. (1987). "Symbols, Units, Nomenclature and Fundamental Constants in Physics (1987 Revision), Document IUPAP-25 (IUPAP–SUNAMCO 87–1)".Physica A.146(1): 1–68.Bibcode:1987PhyA..146D...9C.doi:10.1016/0378-4371(87)90215-9.
External links
[edit]- ISO TC12 standards– Quantities, units, symbols, conversion factors