Thermal performance of buildings and building components. Physical quantities and definitions1 Scope This document defines physical quantities used in the thermal performance of buildings and building elements, and gives the corresponding symbols and units. NOTE Because the scope of this document is restricted to thermal performance and energy use in the built environment, some of the definitions it contains differ from those given ISO 80000 5.

• Train line type: voltage

BS 6818-1 specifies requirements of type

BS EN 60512-5-1 on assessing the current-carrying capacity of connectors is useful for:

to enable current collection from the overhead line equipment

General actions

width and diameter of undercuts and runouts for ISO metric external and internal threads for use in general engineering applications

Why should you use BS 5502-81 - Design and construction of chemical stores

NOTE- BS 60080 doesn’t provide guidance for:

ISO 14816 specifies a data structure that helps users to enable upwards integration and expansion from the simplest low-cost AVI/AEI system to more complex functions

Clarification of seat loading points and back loading points

units and their letter symbols and mathematical symbols that are to be used in electrical technology

the overall description of the ISO 20022 Repository contents