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Crude oil assays provide petroleum refiners, producers, traders, distributors and other stakeholders with vital quality data. SGS crude oil assay testing provides customers the information they need to help optimize refinery yields, avoid processing problems, and avoid crude oil blending compatibility risks. The SGS Deer Park Texas crude oil assay laboratory team provides a full range of crude oil testing and assay analysis capabilities, offering crude oil characterization of whole crude oils and boiling range fractions.

SGS crude oil assay tests include ASTM, API, and other methods:

  • True boiling point distillation ‐ TBP (D2892)
  • Vacuum potstill distillation (D5236)
  • Atmospheric distillation – petroleum products (D86)
  • Vacuum distillation – petroleum products (D1160)
  • Simulated distillation (D2887, D7169)
  • Specific gravity / API (D5002, D2598, D1298, D70)
  • Sulfur, total (D4294, D2622, D5453)
  • H2S and mercaptan sulfur in liquid (UOP 163)
  • H2S in vapor (D5705)
  • Total acid number (D664, D974)
  • Vapor pressure (D323, D5191, D6377)
  • DHA D6730 (Detailed Hydrocarbon Analysis)
  • PIONA D5443 (paraffins,Iso-paraffin, olefins, naphthenes, aromatics content)
  • Light ends D7900
  • High temp SimDis merge D7169 X.1 (Simulated Distillation)
  • Hydrocarbon D2425
  • Methanol in crude (D7059)
  • Sulfur speciation (D5623, UOP 791)
  • Naphthalene (D1840)
  • Aniline point (D611)
  • Cloud point (D2500, D5771)
  • Flash point (D56, D92, D93)
  • Freeze point (D2386, D5972)
  • Pour point (D97, D5949)
  • Smoke point (D1322)
  • Nitrogen, total (D4629, D5762)
  • Basic nitrogen (UOP 269)
  • Bromine number (D1159)
  • Carbon, hydrogen, nitrogen (D5291)
  • SARA analysis (IP 469)
  • Carbon residue (D189, D4530)
  • Ash content (D482)
  • Refractive index (D1747)
  • Viscosity (D445, D7042)
  • Heat of combustion (D240)
  • Asphaltenes (D6560, IP‐143)
  • Metals (D5708, D5863, IP‐501)
  • Chlorides (D4929, UOP 779, UOP 588)
  • Anions (D4327)Penetration (D5)
  • Water and sediment (D4007)
  • Wax content (UOP 46)
  • Additional crude oil assay tests