Information technology. Data centre facilities and infrastructures - Power Usage EffectivenessWhat is this standard about? This European Standard specifies the Power Usage Effectiveness (PUE) as a Key Performance Indicator (KPI) to quantify the efficient use of energy in the form of electricity. This European Standard: a) defines the Power Usage Effectiveness (PUE) of a data centre; b) introduces PUE measurement categories; c) describes the relationship of this KPI to a data centres infrastructure, information technology equipment and

processes and terminologies described in ISO/IEC 27001 and ISO/IEC 27002

quality and project management

The second specifiable parameter is derived by combining the pulses using sets of specific radial weights to determine an approximation of a set of pulses from typical transmitters

tilting tables

BS EN 4644-002 for aerospace connector performance and contact arrangements is useful for:

Variation of guidance

4 Construction

as mentioned in Article 8 of Directive 2006/32/EC

Electronic health record communication:

Product specifiers and buyers

A revision of Table C

Requirements related to automatic mode of operation have been added in 4