GB/T 34102-2017Determination of 2,6-ditertbutyl-p-cresol in jet fuels—Differential pulse voltammetry (English PDF)

1 Scope

This standard specifies the use of differential pulse voltammetry jet fuel 2,6-di-tert-butyl-p-cresol antioxidant method.

This standard applies to 2,6-di-tert-butyl-p-cresol content of 8mg/L ~ 31mg/L of jet fuel.

This standard can also be used beyond the scope of jet fuel 2,6-di-tert-butyl-p-cresol determination, but the precision did not do inspection.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 4756 Petroleum liquids - Manual sampling method

Petroleum products - Test methods - Determination of precision data

3 Terms and definitions

The following terms and definitions apply to this document.

4 Method summary

Jet fuel was added to a specific electrolyte solution, using the specified composite electrode, differential pulse voltammetry 2,6-di-tert-butyl-methyl

Determination of phenol antioxidants. Differential pulse voltammetry analysis, when the working electrode voltage is higher than the oxidation potential of the antioxidant, the antioxidant is oxygen

As a result, the anodic current increases, forming an oxidation voltammetric peak of the anode current with the change of the scanning voltage. Peak voltammetry peak current and solution resistance […]