Gas infrastructure. Pressure testing, commissioning and decommissioning procedures. Functional requirements1 Scope This European Standard describes common principles for pressure testing, commissioning and decommissioning of gas infrastructures as covered by the functional European Standards of the Technical Committee CEN TC 234, see Annex B. They have been extracted from the detailed codes of practice and operating manuals in the member countries. This European Standard does not cover installation pipework which is covered by EN 1775. The specified

This is in contrast to a stored query expression

Gives requirements for the complete Energy Measurement System and also requirements for all devices implementing one or more functions of the Energy Measurement System

Traditionally the standard was used to manage IT services

and to the methods used to evaluate them

by prior agreement between the parties concerned

are suitable as long as the analysis shows that the initial deflection of the installed pipes does not exceed 3 %

Window graphics on the outside of windows are covered by this International Standard

ISO 15176 is intended to be of use in determining the suitability of soil materials for re-use and the assessment of the environmental impacts that might arise from re-use

as defined in Annex A of IEC 61753‑1:2007

s signal in the frequency range 125 kHz to 140 kHz

The medical imaging equipment and systems covered by BS EN IEC 63077 include:

Manufacturers of reusable all-glass or metal-and-glass syringes