This page documents an OPTIMADE Unit Definition. See https://schemas.optimade.org/ for more information.
ID: https://schemas.optimade.org/defs/v1.2/units/si/1971/named/siemens
Definition name: siemens
Unit name: siemens
Latin symbol: S
Display symbol: S
Description: A derived SI unit for electrical conductance equal to kg⁻¹·m⁻²·s³·A² using the 1967 SI base units, defined at the 14th CGPM Meeting (1971).
"The International Committee will ask the General Conference to approve two special names: [...] siemens (symbol S) for the SI unit of conductance (Ω⁻¹)." [14th CGPM Meeting (1971)].
Resources:
JSON definition:
{
"$id": "https://schemas.optimade.org/defs/v1.2/units/si/1971/named/siemens",
"$schema": "https://schemas.optimade.org/meta/v1.2/optimade/physical_unit_definition.json",
"title": "siemens",
"symbol": "S",
"display-symbol": "S",
"description": "A derived SI unit for electrical conductance equal to kg\u207b\u00b9\u00b7m\u207b\u00b2\u00b7s\u00b3\u00b7A\u00b2 using the 1967 SI base units, defined at the 14th CGPM Meeting (1971).\n\n\"The International Committee will ask the General Conference to approve two special names: [...] siemens (symbol S) for the SI unit of conductance (\u03a9\u207b\u00b9).\" [14th CGPM Meeting (1971)].",
"resources": [
{
"relation": "Definition at the 14th CGPM Meeting (1971)",
"resource-id": "https://www.bipm.org/en/committees/cg/cgpm/14-1971"
},
{
"relation": "Wikipedia article describing the unit",
"resource-id": "https://en.wikipedia.org/wiki/Siemens_(unit)"
}
],
"defining-relation": {
"base-units": [
{
"symbol": "A",
"id": "https://schemas.optimade.org/defs/v1.2/units/si/1967/base/ampere"
},
{
"symbol": "kg",
"id": "https://schemas.optimade.org/defs/v1.2/units/si/1960/base/kilogram"
},
{
"symbol": "m",
"id": "https://schemas.optimade.org/defs/v1.2/units/si/1960/base/metre"
},
{
"symbol": "s",
"id": "https://schemas.optimade.org/defs/v1.2/units/si/1967/base/second"
}
],
"base-units-expression": "A^2*kg^-1*m^-2*s^3"
},
"standard": {
"name": "si",
"year": 1971,
"category": "named",
"symbol": "S"
},
"x-optimade-definition": {
"label": "siemens_si_1971_named",
"kind": "unit",
"format": "1.2",
"version": "1.2.0",
"name": "siemens"
}
}