10.5.16 STO Analysis
| Topic Version | 1 | Published | 12/09/2016 | |
| For Standard | PRODML v2.0 | |||
For representative samples of stock tank oil, an additional set of stock tank oil (STO) analysis tests may be conducted to provide measurements of viscosity (at temperature), pour point, cloud point, wax appearance temperature, paraffin content, asphaltene content and SARA, Reid vapor pressure, total acid number, total sulfur, molecular weight, water content, and the amounts of lead, nickel, vanadium and elemental sulfur present.