The object of the performed investigations was to determine fractions of fuel wood chips. The fuel wood chips were harvested with chippers: Bandit 1400 and Vermeer BC1800A. The determination of chips fractions was based on 5 fraction classes. In all the samples, 11-35 mm fraction was the most numerously represented. In case of < 2 mm and 11-35 mm fractions the statistical substantial differences were found between average values participation of these fractions. The results of fractions of fuel wood chips dimensions in majority were up to Polish standards of fuel wood chips dimensions.

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