Interlaboratory Proficiency Test 07/2019 - Gross and net calorific values in fuels

Show simple item record Leivuori, Mirja Hatanpää, Eliisa Koivikko, Riitta Tervonen, Keijo Lanteri, Sari Ilmakunnas, Markku 2019-12-04T08:38:53Z 2019-12-04T08:38:53Z 2019
dc.identifier.isbn 978-952-11-5105-7
dc.identifier.issn 1796-1726
dc.description.abstract Proftest SYKE arranged the proficiency test (PT) for the measurements of the gross and net calorific value, the content of ash, carbon, nitrogen, hydrogen, moisture, sulphur, and volatile matter in peat, wood pellet (not sulphur) and coal samples in August-September 2019. In total, there were 34 participants in the PT. The participants could also estimate the emission factor for the peat and coal samples. The robust mean or the median of the results reported by the participants was used as the assigned value for measurements. The performance evaluation was based on the z scores. In total, 90 % of the reported results were satisfactory, when the deviation of 1–30 % from the assigned value was accepted. For the gross calorific value measurements 93 % of the peat sample results, 76 % of the wood pellet sample results, and 86 % of the coal sample results were satisfactory. For the net calorific value measurements 82 % of the peat sample results, 88 % of the wood pellet results, and 93 % of the coal sample results were satisfactory. The performance evaluation was not done for the measurements of Mad in all samples, Nd in the wood pellet sample, and emission factor in peat and coal sample. Warm thanks to all the participants in this proficiency test! fi
dc.language.iso en fi
dc.publisher Finnish Environment Institute fi
dc.relation.ispartofseries Reports of the Finnish Environment Institute 48/2019 fi
dc.title Interlaboratory Proficiency Test 07/2019 - Gross and net calorific values in fuels fi
dc.type Kirja fi
dc.identifier.laitoskoodi Suomen ympäristökeskus fi

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