Base Number
Base Number Certified Reference Materials
ISO/IEC 17025 and ISO 17034 Base Number (BN) / Total Base Number (TBN) Certified Reference Material (CRM) intended to be used for verification of measuring equipment, method validation, method verification, or other quality control processes applicable for the test method ASTM D2896, or test methods IP 276, ISO 3771, or other applicable methods.
ARO's Base Number (BN) / Total Base Number (TBN) Certified Reference Material has been characterised in accordance with ASTM D2896, Procedure A. Manufacture and characterisation has been performed in accordance with ARO's accreditation to ISO/IEC 17025 and ISO 17034, UKAS CAB No. 27393.
| Part No. | Certification | Test Method | Matrix | Certified Value | Pack Size | Price | Qty | Action |
| TBN1 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 0.99 mg KOH/g | 125 g |
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| TBN1/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 0.99 mg KOH/g | 3 x 125 g |
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| TBN3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 2.97 mg KOH/g | 50 g |
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| TBN3/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 2.97 mg KOH/g | 3 x 50 g |
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| TBN6 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 6.04 mg KOH/g | 50 g |
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| TBN6/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 6.04 mg KOH/g | 3 x 50 g |
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| TBN10 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 10.08 mg KOH/g | 50 g |
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| TBN10/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 10.08 mg KOH/g | 3 x 50 g |
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| TBN15 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 15.25 mg KOH/g | 50 g |
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| TBN15/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 15.25 mg KOH/g | 3 x 50 g |
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| TBN30 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 29.87 mg KOH/g | 50 g |
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| TBN30/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 29.87 mg KOH/g | 3 x 50 g |
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| TBN40 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 40.20 mg KOH/g | 50 g |
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| TBN40/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 40.20 mg KOH/g | 3 x 50 g |
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| TBN70 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 69.48 mg KOH/g | 50 g |
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| TBN70/3 | ISO 17025 / ISO 17034 | ASTM D2896 | Mineral Oil | 69.48 mg KOH/g | 3 x 50 g |
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