January 22, 2019 A workshop on conformity assessment of biomethane. This was held at NEN in Delft, Netherlands on 22–23 January 2019. Workshop presentations (linked where downloadable): Workshop agenda Opening events by NEN + VSL (Francoise de Jong and Marc Pieksma) Special Introduction of European Metrology Network on Energy Gases (Annarita Baldan, VSL + Hans Arne Frøystein, EURAMET) Goals of the Workshop (Jianrong Li, VSL) Status of EU biogas & biomethane sectors (Mieke Decorte, EBA) Gas quality situation in Italy – gas (natural gas and biomethane) quality specifications, laws and how it is controlled (Alejandra Casola Lopez, Snam Rete Gas) Activities on measurement of biogas and biomethane impurities at PSI (Serge Biollaz, PSI) Measurement techniques and test methods for measuring total silicon and siloxanes contents (Lucy Culleton, NPL+ Rialda Kurtic, IMBiH + Tim Robinson, WAL + Open discussion) Measurement techniques and test methods for measuring fluorine, chlorine and halogenated VOCs contents (Javis Nwaboh, PTB + Timo Rajamaki, VTT + Stefan Persijn, VSL + Open discussion) Activities on biogas and biomethane within Air Liquide (Martine Carré, Air Liquide) Measurement techniques and test methods for measuring amines contents (Lorena Cuccia, GRTgaz + Jianrong Li, VSL + Open discussion) Measurement techniques and test methods for measuring ammonia content (Lucy Culleton, NPL + Gabriele Migliavacca, ISSI + Open discussion) DNV GL’s Common practices for the analysis of Biogas (Henk Top, DNV GL) Advantages of online measurements of biogas contaminants (Mikko Weckström, Qualvista) Measurement techniques and test methods for measuring terpenes contents (Béatrice Sanz, GRTgaz + Sergi Moreno, NPL + Open discussion) Measurement techniques and test methods for the determination of compressor oil carryover (Oliver Buker, RISE + Francois Lestremau, INERIS + Open discussion) Test methods for the determination of biogenic methane content (Sanne Palstra, RUG + Open discussion)