Determination of non-volatile residue (NVR) in n-Hexane utilizing Gravimetric Analysis.
Sample Requirements:
Solid material >0.5mm thick: One (1) Unit / at least 30 cm^2
Solid material <0.5mm thick: One (1) Unit / at least 60 cm^2
Powder/Pellet/Foam: 2 grams
Estimated Turnaround Time: 6 weeks
Products specifications
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Subcontracted
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Yes |
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Standards
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ISO 10993-18:2020/Amd 1:2022 |
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Endpoint
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Chemical Characterisation, Systemic |
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Turnaround
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3-6 weeks |
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Test system
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Analytical — gravimetric, hexane extract |
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Method
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Gravimetric, n-hexane extract |
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Extraction
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1 extract at 10 mL per extract. Extraction ratio per ISO 10993-12: 6 cm2/mL for material under 0.5 mm thick, 3 cm2/mL at 0.5 mm or thicker, or 0.1-0.2 g/mL where surface area is indeterminate. |
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Acceptance criteria
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Reported gravimetrically. Non-volatile residue is the readout for the exhaustive-extraction stopping rule under ISO 10993-18: extraction continues until a step yields no more than 10% of the residue recovered in the first. No independent pass or fail. |
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Deliverable
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Analytical report with raw data and the compound list, issued in Groenakker’s report template or in your document template on request at no extra cost. Results carry into the ISO 10993-17 toxicological risk assessment, which is signed by a DABT board-certified toxicologist. |
