TBN3 Base Number (BN)

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 used to determine acid number by potentiometric titration, applicable for the test method ASTM D2896, or test methods IP 276, ISO 3771, or other applicable methods.

New and used petroleum products may contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titrating with acids. The neutralization number, which is expressed as base number, is a measure of this amount of basic substance in the oil always under the conditions of the test. The neutralization number is used as a guide in the quality control of lubricating oil formulations. It sometimes is used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.

base number - n, the quantity of a specified acid, expressed in terms of the equivalent number of milligrams of potassium hydroxide per gram of sample, required to titrate a sample in a specified solvent to a specified endpoint using a specified detection system.

ARO's Base Number (BN) / Total Base Number (TBN) Certified Reference Material has been characterised in accordance with ASTM D2896, Procedure A. Manufacturing, testing and certification has been performed in accordance with ARO's accreditation to ISO/IEC 17025 and ISO 17034, UKAS CAB No. 27393.

• • Manufactured and Characterised in strict accordance to ISO/IEC 17025 and ISO 17034
• • Highest level of accreditation guarantee, providing the most credible certified data available worldwide
• • Typically used in, but not limited to, the analysis of used oils and lubricants
• • Base Number (BN) certified reference materials are characterised in strict accordance with ASTM D2896, Procedure A
• • Fully traceable to international standards
• • Supplied in tamper-evident glass packaging, providing assurance of sample integrity
• • Available as a single or triple pack
• • Manufactured in the United Kingdom by ARO Scientific Ltd
• • 24 month shelf life

Our commitment to quality and our accreditations demonstrates that we have rigorous quality systems in place that allow us to provide customers with the highest quality products possible, which are accepted globally. In addition, our Combined UKAS and ILAC-MRA Mark demonstrates that the accreditation we hold is recognised under the International Laboratory Accreditation Cooperation (ILAC) Mutual Recognition Arrangement, our certificates are accepted around the world.