quantity

July 24, 2022
Jarek Wityk
Category: Dictionary, Organization of information

Dictionary
Digital Construction (electrical)

Information Delivery Cycle

term introduced first in PAS 1192 and updated in ISO 19650 framework, it depicts the process of specifying and delivery of project and asset information

Digital Plan Of Work (DPoW)

forms a framework that supports informed and consistent decision making by project teams, at each work stage, helping to deliver agreed and reliable information.

Exchange Information Requirements (EIR)

Exchange Information Requirements (EIR) term introduced by BS EN 19650 replace the PAS 1192 term Employer Information Requirements (EIR) on all projects where BS EN ISO 19650 compliance is required.

Lead Appointed Party

The term introduced by ISO 19650 typically describes the Tier 1 Main Contractor.

Federation Strategy

breakdown structure to help plan the production of information

Task Information Delivery Plan (TIDP)

schedule of information containers and delivery dates, for a specific task team

Model Production Delivery Table (MPDT)

An MPDT its old PAS 1192 term, the MPDT defines who produces what, when and to what level of detail.

property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed by means of a number and a reference. for example a measure with a unit.
Quantities can appear as base quantities or derived quantities.
EXAMPLE 1 Length, mass, electric current (ISQ base quantities).
EXAMPLE 2 Plane angle, force, power (derived quantities).
[SOURCE: ISO 80000-1:2009, 3.1, modified — Notes 1 to 6 to entry have been removed; EXAMPLEs 1 and 2 and new Note 1 to entry have been added.]

xtdMeasureWithUnit
[source ISO 12006-3 names ]

Table C.1 — BS EN ISO 23386:2020 Base quantities from ISO 80000-1:2009

Base quantities	Description	Dimension	SI unit	SI symbol
Length	One-dimensional extent of an object	L	metre	m
Mass	A measure of resistance to acceleration	M	kilogram	kg
Time	The duration of an event	T	second	s
Electric current	Rate of flow of electrical charge per unit time	I	ampere	A
Thermodynamic temperature	Average kinetic energy per degree of freedom of a system	θ	kelvin	K
Amount of substance	Number of particles compared to the number of atoms in 0,012 kg of 12C	N	mole	mol
Luminous intensity	Wavelength-weighted power of emitted light per unit solid angle	J	candela	cd

BS EN ISO 23386:2020 – Annex C

Table C.2 — BS EN ISO 23386:2020 Examples of derived quantities from ISO 80000-1:2009

Derived quantities	Description	Dimension	SI derived unit	SI symbol
Acceleration	Change of the speed or velocity per unit time	_LT−2	metre per sec- ond per second	_{m s}−2
Plane angle	Ratio of circular arc length to radius	1	radian	rad
Solid angle	Ratio of area on a sphere to its radius squared	1	steradian	sr
Capacitance	Stored charge per unit electric potential	_L−2_M−1_T4_I2	farad	F
Electric field strength	Strength of the electric field	_LMT−3_I−1	volt per metre	_{V m}−1
Magnetic field strength	Strength of a magnetic field	_L−1_I	ampere per metre	_{A m}−1
Electric charge	The force per unit electric field strength	TI	coulomb	C
Electrical conduct- ance	Measure for how easily current flows through a material	_L−2_M−1_T3_I2	siemens	S
Current density	Electric current per unit cross-section area	_L−2_I	ampere per square metre	_{A m}−2
Energy	Capacity of a body or system to do work	_L2_MT−2	joule	J
Entropy	Logarithmic measure of the number of availa- ble states of a system	_L2_MT−2_θ−1	joule per kelvin	_{J K}−1
Force	Transfer of momentum per unit time	LMT⁻²	newton	N
Frequency	Number of (periodic) occurrences per unit time	_T−1	hertz	Hz
Impedance	Resistance to an alternating current of a given frequency, including effect on phase	_L2_MT−3_I−2	ohm	Ω
Inductance	Magnetic flux generated per unit current through a circuit	_L2_MT−2_I−2	henry	H
Magnetic flux density	Measure for the strength of the magnetic field	_MT−2_I−1	tesla	T
Volume density	Mass per unit volume	_L−3_M	kilogram per cubic metre	kg m⁻³
Permittivity	Measure for how the polarization of a materi- al is affected by the application of an external electric field	_L−3_M−1_T4_I2	farad per metre	_{F m}−1
Electric potential	Energy required to move a unit charge through an electric field from a reference point	_L2_MT−3_I2	volt	V
Pressure	Force per unit area	_L−1_MT−2	pascal	Pa
Power	Rate of transfer of energy per unit time	_L2_MT−3	watt	W
Electrical resistance	Electric potential per unit electric current	_L2_MT−3_I−2	ohm	Ω
Electrical resistivity	Bulk property equivalent of electrical resist- ance	_L3_MT−3_I−2	ohm metre	Ω m
Area	Extent of a surface	_L2	square metre	_m2
Thermal conductiv- ity	Measure for the ease with a material con- ducts heat	LMT³θ⁻¹	watt per metre per kelvin	_{w m}−1 _k−1
Velocity	Speed and direction of an object	_LT−1	metre per second	_{m s}−1
Angular speed	The angle incremented in a plane by a seg- ment connecting an object and a reference point per unit time	_T−1	radian per second	rad s⁻¹
Volume	Three-dimensional extent of an object	_L3	cubic metre	_m3

BS EN ISO 23386:2020 – Annex C

Leave a Reply Cancel reply

You must be logged in to post a comment.