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NBN EN ISO 19743:2026
Solid biofuels - Determination of content of heavy extraneous materials larger than 3,15 mm (ISO 19743:2026)
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Summary
This document specifies a method for the determination of the content of heavy extraneous materials (HEM) larger than 3,15 mm by the use of sink-and-float separation combined with elutriation. This document is applicable to woody biomass in accordance with ISO 17225-1, and especially for hogfuel in accordance with ISO 17225-9.
NOTE 1 This method is designed to determine the level of impurities larger than 3,15 mm with a specific density >1 g/cm3, such as stones, glass, rubber, metal and certain types of plastics.
NOTE 2 During the processing of the sample, hand sorting of light impurities with a specific density =1 g/cm3 (e.g. plastic foil) can also be done.
NOTE 3 Some heavy extraneous materials (e.g. lumps of clay) can fall apart when submerged in water.
NOTE 4 Heavy extraneous materials smaller than 3,15 mm can damage milling equipment, when reducing the material in size to produce laboratory samples.
NOTE 1 This method is designed to determine the level of impurities larger than 3,15 mm with a specific density >1 g/cm3, such as stones, glass, rubber, metal and certain types of plastics.
NOTE 2 During the processing of the sample, hand sorting of light impurities with a specific density =1 g/cm3 (e.g. plastic foil) can also be done.
NOTE 3 Some heavy extraneous materials (e.g. lumps of clay) can fall apart when submerged in water.
NOTE 4 Heavy extraneous materials smaller than 3,15 mm can damage milling equipment, when reducing the material in size to produce laboratory samples.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 02/04/2026 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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