• PONA Number:

    • Properties of petroleum feedstock is measured by the Paraffin, Olefin, Naphthene, and Aromatic content (PONA), in volume percent.

    • The PONA number is significant in determining the quality of naphtha. There are various grades of naphtha produced depending on the PONA specifications, such as 60/15, 65/12, 70/10, etc. The first number is the minimum allowable total paraffins percentage and the second number specifies the maximum allowable aromatics percentage.

    • PIONA or PIANO analysis includes Isoparaffin content in addition to the PONA content.