Norm

NEN-EN-ISO 15796:2008 en

Gasanalyse - Onderzoek en behandeling van een systematische afwijking bij analyse

124,99

Over deze norm

Status Definitief
Aantal pagina's 33
Commissie Gasanalyse
Gepubliceerd op 01-09-2008
Taal Engels
This International Standard specifies generic methods for detecting and correcting bias (systematic errors) of analytical procedures for the analysis of gases, using reference gas mixtures or reference analytical procedures, as well as for estimating the correction uncertainty. The main sources of (and parameters affecting) bias of analytical procedures are instrumental drift (time) and matrix interferences (matrix composition). Moreover, bias normally varies with analyte concentration. This International Standard specifies generic methods for detecting and correcting bias (systematic errors) of analytical procedures for the analysis of gases, using reference gas mixtures or reference analytical procedures, as well as for estimating the correction uncertainty. The main sources of (and parameters affecting) bias of analytical procedures are instrumental drift (time) and matrix interferences (matrix composition). Moreover, bias normally varies with analyte concentration. This served pattern of deviations and correcting for their effect, b) averaging over their effects and increasing the uncertainty, where normally the first option entails lower uncertainty at the expense of higher effort. For the convenience of the user, the methods specified in this International Standard are described for procedures of composition analysis, i.e. procedures for measuring the concentration of a specified analyte in a gas mixture. However, they are equally applicable to measurements of physico-chemical properties of a gas or gas mixture relevant to gas analysis, and translation into this subject field is straightforward.

Details

ICS-code 71.040.40
Nederlandse titel Gasanalyse - Onderzoek en behandeling van een systematische afwijking bij analyse
Engelse titel Gas analysis - Investigation and treatment of analytical bias
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