Product Analysis

Artisan Biochar

The “Global Artisan C-Sink” carbon sink certification guideline has been valid since December 1, 2023, is the basis for artisanal biochar production, was developed by the Ithaka Institute and is owned by Carbon Standard International.
The geographical scope of the “Global Artisan C-Sink” is limited to low income, lower middle income and upper middle income countries according to the World Bank classification.

Ruhr Lab GmbH has been one of the accredited laboratories since December 12, 2023.

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Pos. Parameter Method Artisan Basic Artisan Pro Artisan new techologies Artisan moving metallic parts
1. Sample Preparation 1 ISO 13909-4 / DIN 51701-3
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2. Total Moisture 1 ISO 589 / DIN 51718
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3. Inherent Moisture 1 ISO 11722 / DIN 51718
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4. Ash 1 ISO 1171 / DIN 51719
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5. Carbon 1 ISO 29541 / DIN 51732
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6. Hydrogen 1 ISO 29541 / DIN 51732
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7. Nitrogen 1 ISO 29541 / DIN 51732
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8. Sulphur 1 ISO 19579 / DIN 51724-3
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9. Oxygen (calculated) 1 ISO 17247 / DIN 51733
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10. pH-value 2 DIN ISO 10390
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11. Water holding capacity 3 DIN ISO 14238 Annex A
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12. Bulk density 1 DIN EN ISO 17828 / VDLUFA A 13.2.1
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13. Conductivity (of the pyrogenic solid) 2 House method
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14. PAH (EPA, 16 Parameter) 3 DIN EN 17503 (10.2.3 Extraction with Toluol)
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15. Trace elements (Ag, As, Pb, Cd, Cu, Ni, Hg, Zn, Cr, B, Mn) 3 DIN EN ISO 12846 / DIN 22022-1 / DIN EN ISO 17294-2 / DIN 22022-7
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1 = flexible accreditation / 2 = not accredited / 3 = subcontracting
All listed parameters, unless otherwise indicated, are subject to the accreditation of Ruhr Lab GmbH according to DIN EN ISO/IEC 17025:2018.
Registration number: D-PL-21007-01-00.
Ruhr Lab GmbH has a flexible accreditation scope in which the free selection of standardized or equivalent test methods is permitted by DAkkS.