The Measurement Assurance Program (MAP) Proficiency Testing Scheme is a statistical quality assurance programs that enable laboratories to evaluate and improve performance, maintain and fulfil mandatory requirements.

MAP Proficiency Testing programme with the objective of providing report-back service to participants for self-evaluation. The MAP PTS is designed to allow flexibility in participation. No specific methods or instrumentation are prescribed.

The programme offers various petroleum products scheduled on a quarterly basis.

The Program covers the following products:

Petrol Product:

Octane No (MON), Octane No (RON), Octane No (MON-NIR), Octane No (RON-NIR), Benzene content, % (v/v), Phosphorus content mg/L, Total acidity, mgKOH/g, Potential gums (2,5h @100°C), mg/100ml, Existant gum, mg/100ml, Oxygen content %mass, Hydrocarbon types, Aromatics, % (v/v), RVP @ 37.8 kPa, Density at 20°C kg/L, Sulphur content, mg/kg, Distillation (IBP, ii) 10 % (v/v); 50 % (v/v); 90% (v/v); 95 % (v/v) and Final boiling point, oC.

Automotive Diesel Fuel Product:

Cetane index; Cetane No; Cold filter plugging point,°C;Cloud point °C; Viscosity at 40°C, mm²/s; Lubricity by HFRR, Фm; Carbon residue on 10% volume fraction;v Oxidation stability; mg/100ml; Flash point (PMCC) °C; Density at 20°C, g/mL; Sulfur content, mg/kg; Water content, mg/kg, FAME , %; Distillation (Initial boiling point; 10% (v/v) recovered; 50% (v/v) recovered; 90% (v/v) recovered; 95% (v/v) recovered).

Base Oil Product:

Flash point (PMCC), oC; Viscosity at 100 oC, mm2/s; Viscosity at 40 oC, mm2/s; Colour; Density at 20 oC, g/mL; Pour point, oC; Engine Oil Product: Total base No, mg KOH/g; Viscosity at 100°C, mm²/s; Viscosity at 40°C, mm²/s; Pour point, °C; Density at 20°C kg/L; Flash point (COC), °C; Water content/ moisture content (ppm); Particle count (um) (ISO 4406); Calcium as Ca, % (m/m); Zinc as Zn, % (m/m); Magnesium as Mg, % (m/m); Phosphorus as P, % (m/m)

Heavy Fuel Oil:

Density at 20 oC, g/mL; Sediment by extraction,%wt; Kinematic viscosity at 50 oC, mm2/s; Sediment after chemical ageing, % (m/m); Carbon residue, % (m/m); Vanadium, mg/kg; Ash content % (m/m); Water content; Flash point (PMCC), oC; Aluminium, mg/kg; Calorific Value , MJ/kg; Silicon, mg/kg; Sulphur % (m/m). Jet Fuel Product: Temperature, oC for (IBP; 10% (v/v) recovered; 50% (v/v) recovered; 90% (v/v) recovered; Final Boiling point, oC; Viscosity at -20 oC mm2/s; Density at 15 oC; Flash point (Abel closed cup), oC; Naphthalenes (vol) % (Indicate if its proc A or B); Total Aromatics (vol%); Sulphur Total (wt%); Acidity total (mg KOH/g); Freezing point, oC Smoke point, mm; Existent gum, mg/100ml.

Turbine Oil Product:

Flash point, (COC); Viscosity at 40 oC, mm2/s; Moisture content (ppm); Air release at 50 oC, min; Demulsibility,min.

Scheduled:

Quarter 1 (Apr – June)
Quarter 2 (Jul – Sep)
Quarter 3 (Oct – Dec)
Quarter 4 (Jan – Mar)

Study Protocol

The programme structure therefore allows a laboratory to choose participation in one or two or all products. All participants are coded for confidentiality purposes. Products are and prepared for each study according to quality management system (ISO/IEC 17043). Samples are dispatched as per year planner or the beginning of each quarter with a report-back deadline near the second month of the quarter. A preliminary report covering the results of a study is then sent by e-mail to the participants within two weeks of the report-back deadline.

Study Report

The report on each round consists of a robust statistical analysis of results, with the inclusion of outliers, against the criteria from the method (reproducibility). The reproducibility and z-scores for each result are tabulated and then summarized per product. Correlation of analysis where applicable is performed with the evaluation of each laboratory’s performance. Laboratories are not rated against each other, but a report is provided for self-evaluation.