VWR®, Total Acid Number (TAN) standards

Supplier: VWR Chemicals

VWRC99343.202EA 1070 SGD
VWRC99343.202 VWRC99343.001 VWRC99344.202 VWRC99344.001 VWRC99345.202 VWRC99345.001 VWRC99346.202 VWRC99346.001 VWRC99347.154 VWRC99347.001 VWRC99348.154 VWRC99348.001 VWRC99349.154 VWRC99349.001 VWRC99350.154 VWRC99350.001 VWRC99351.154 VWRC99351.001
VWR®, Total Acid Number (TAN) standards
Standards Petroleum Industry Standards

Total Acid Number (TAN) standards are specifically manufactured for the verification of analytical instruments used to determine acid number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D664 / IP 177.


  • Typically used in, but not limited to, the analysis of used oils and lubricants
  • Acid number (AN) tested and certified in accordance with ASTM D664 / IP 177
  • Fully traceable to international standards and low levels of uncertainty achieves maximum accuracy of data
  • Supplied in tamper-evident glass packaging, providing assurance of sample integrity


Certifications: Manufacture and certification is carried out in strict accordance with dual-UKAS accreditations to ISO 17025 and ISO 17034. This dual-accreditation ensures the highest level of accreditation guarantee, and provides the most credible certified data available worldwide.


Caution: The concentration value given in the ordering table below is the nominal concentration for the TAN value - actual batch values are given in the certification documents supplied with the product and also on the label.

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