Abstract: Reference materials of hydrogenated rosin were prepared using commercial hydrogenated rosin. Qualitative and quantitative analysis of resin acid of hydrogenated Rosin was carried out by gas chromatography-mass spectrometry using DB-35 ms quartz capillary column. Homogeneity examination of the reference materials of resin acid components was applied by statistical analysis. The property and uncertainty value on the content (GC%) of four characteristic resin acids from reference materials was calculated for certification.

Key words: hydrogenated rosin, reference materials, homogeneity examination, gas chromatography analysis