Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59
inform@normdocs.ru

ÖNORM EN ISO 10723:2005-04

Заменен
Natural gas - Performance evaluation for on-line analytical systems (ISO 10723:1995, including Technical Corrigendum 1:1998) (consolidated version)
This International Standard specifies a method of determining whether an analytical System for natura1 gas is satisfactory,
on the assumptions that
a) the analytical requirement has been clearly and unambiguously defined, for the range and uncertainty of
component concentration measurements, and the uncertainty of properties which may be calculated from
these measurements;
b) the analytical and calibration procedures have been fully described;
c) the method is intended to be applied to gases having compositions which vary over ranges normally found in
transmission and distribution networks.
If the Performance evaluation Shows the System to be unsatisfactory, all the stages, such as
- the analytical requirement;
- the analytical procedure;
- the choice of equipment;
- the choice of calibration gas;
- the calculation procedure;
must be re-examined in the light of the test data to assess where improvements tan be obtained.
This International Standard is applicable to analytical Systems which give the component concentrations and resulting
uncertainties. With the present state of knowledge, the method Chosen is likely to be gas chromatography.
Performance evaluation of an analytical System should be performed during installation, then at regular intervals,
according to the application, and/or whenever any critical component of the analytical System is changed or replaced.
Festgelegt ist ein Verfahren, mit dessen Hilfe festgestellt werden kann, ob ein Erdgas-Analysesystem zufriedenstellend arbeitet. Die Voraussetzungen dabei sind die analytischen Anforderungen in Bezug auf den Bereich und die Unsicherheit der Messung der Konzentration der Komponenten sowie die Unsicherheit der aus diesen Messungen berechneten Eigenschaftsgrößen, weiters dass das Analyse- sowie das Kalibrierverfahren vollständig beschrieben sind und die Methode dazu bestimmt ist, auf Gase angewendet zu werden, deren Zusammensetzung in Bereichen variiert, wie man sie im Normalfalle in Transport- und Versorgungsnetzen vorfindet.
ICS
75.060 Natural gas / Природный газ