ISO 10414-2:2011 provides standard procedures for determining the following characteristics of oil-based drilling fluids:

• drilling fluid density (mud weight);
• viscosity and gel strength;
• filtration;
• oil, water and solids concentrations;
• alkalinity, chloride concentration and calcium concentration;
• electrical stability;
• lime and calcium concentrations, calcium chloride and sodium chloride concentrations;
• low-gravity solids and weighting material concentrations.

The annexes provide additional test methods or examples that can optionally be used for the determination of:

• shear strength
• oil and water concentrations from cuttings;
• drilling fluid activity;
• aniline point;
• lime, salinity and solids concentration;
• sampling, inspection and rejection;
• rig-site sampling;
• cuttings activity;
• active sulphides;
• calibration and verification of glassware, thermometers, viscometers, retort kit cups and drilling fluid balances;
• permeability plugging apparatus with set-screw secured end cap;
• permeability plugging apparatus with threaded end cap;
• elastomer compatibility;
• sand content of oil-based fluid;
• identification and monitoring of weight-material sag;
• oil-based drilling fluid test report form.