JRC Reference Material Report

ERM®-BD801 is a cocoa butter reference material produced within the scope of ISO 17034:2016 accreditation. It is certified for the relative mass fraction of five triacylglycerols, i.e. 1,3 dipalmitoyl-2 oleoyl-glycerol (POP), 1 palmitoyl-2 oleoyl-3 stearoyl-glycerol (POS), 1 palmitoyl-2,3 dioleoyl-glycerol (POO), 1,3 distearoly-2-oleoyl-glyerol (SOS) and 1 stearoyl-2,3 dioleoyl-glycerol (SOO). The certified reference material (CRM) is available in 10 mL amber glass ampoules containing at least 5 g of cocoa butter. Principal means of stabilisation were the addition of an antioxidant and creation of an inert atmosphere in the ampoules. The between-unit homogeneity was quantified and stability during transport and storage was assessed in accordance with ISO 33405:2024. The minimum sample size is 0.2 g in accordance with ISO 23275-2:2006 or AOCS Official Method Ce 11-05. The material was characterised by an interlaboratory comparison of laboratories of demonstrated competence and adhering to ISO/IEC 17025:2017 all of them following either ISO 23275-2:2006 or AOCS Official Method Ce 11-05. Uncertainties of the certified values include uncertainties related to possible inhomogeneity and characterisation. The material is intended either for the calibration of methods or the assessment of method performance. Before release of the CRM, the certification project was subjected to peer-review involving JRC-internal experts.

ULBERTH-BUCHGRABER Manuela;  BREIDBACH Andreas; 

2026-08-12

Publications Office of the European Union

JRC147846

978-92-68-42128-4 (online),   

OP KJ-01-26-319-EN-N (online),   

https://publications.jrc.ec.europa.eu/repository/handle/JRC147846,   

10.2760/0048354 (online),