Dark uncertainty in key comparisons in the gas analysis area

AMH van der Veen - Metrologia, 2023 - iopscience.iop.org
CCQM-K118 natural gas is among the first key comparisons in the gas analysis area where
a model was chosen to fit the data that considered possible overdispersion ('dark …

Advances in metrology for energy-containing gases and emerging demands

AMH van der Veen, G Nieuwenkamp, ET Zalewska… - Metrologia, 2020 - iopscience.iop.org
Abstract Metrological services from National Metrology Institutes related to energy gases
have been supported by the programme of key comparisons of the Gas Analysis Working …

Validation of ISO 6974 for the measurement of the composition of hydrogen-enriched natural gas

AMH van der Veen, PR Ziel, J Li - international journal of hydrogen energy, 2015 - Elsevier
Hydrogen gas is considered as one of the means to store electrical energy generated from
wind or solar sources. The produced hydrogen gas could be injected into natural gas grids …

Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural

EC Oliveira, PF Aguiar - Química Nova, 2009 - SciELO Brasil
The evaluation of uncertainty associated with an analytic result is an essential part of the
measurement process. Recently, several approaches to evaluate the uncertainty in …

Laboratory‐scale liquefiers for natural gas: A design and assessment study

N von Preetzmann, P Eckmann… - AIChE …, 2021 - Wiley Online Library
Exact knowledge of natural gas composition is essential in custody transfer to determine the
energy content of the delivery. However, for liquefied natural gas (LNG), a reliable …

Extrapolation schemes of key comparison results in gas analysis

AMH van der Veen, H Meuzelaar - Metrologia, 2021 - iopscience.iop.org
Abstract The GAWG (Gas Analysis Working Group of the Consultative Committee for Amount
of Substance: Metrology in Chemistry and Biology) has developed an extrapolation scheme …

Common Approach to Proficiency Testing and Interlaboratory Comparisons

O Kerkhof, M van Son… - … Disciplines in Metrology …, 2009 - Wiley Online Library
Summary Proficiency Testing (PT) and Interlaboratory Comparisons (ILCs) are similar
activities in the sense that they provide a tool for laboratory performance assessment. The …