Login Media Request Request Quote COC / Sample Submission Form

AGT Labs Petroleum Testing

(832) 742-5943 info@agtlabs.com LinkedIn Instagram Twitter Visit us

Crude Oil Testing Services & API Gravity

ISO/IEC 17025 accredited crude oil testing in Houston, TX for refineries, traders and terminals, with samples accepted nationwide.

Accredited Crude Oil Density & API Gravity Testing

Crude oil quality varies widely and directly impacts refining routes, product yields, logistics, and trading. AGT Labs provides Crude Oil Testing Services under PJLA accreditation to ISO/IEC 17025:2017. Our accredited crude oil tests are density, relative density and API gravity by digital density meter (ASTM D5002) and Ramsbottom carbon residue (ASTM D524), supporting traders, refiners and terminals with objective data for acceptance and reconciliation.

Accredited Test Parameters

Every crude oil test listed below is on our PJLA ISO/IEC 17025 scope of accreditation (Certificate L25-276).

Density, Relative Density & API Gravity
ASTM D5002
Ramsbottom Carbon Residue
ASTM D524

Industries We Serve

Providing precision technical data across the petroleum value chain utilizing our Crude Oil Testing Services.

Crude Traders & Brokers

Independent API gravity data for acceptance and dispute resolution on cargo transfers.

Refineries

Density, API gravity and carbon residue data to support crude slate planning.

Terminals & Pipelines

Accredited density and API gravity for custody transfer and blend verification.

Crude Purchasers

Carbon residue and API gravity screening to evaluate supply consistency.

Producers

Accredited API gravity results for lease and batch quality records.

Pipeline Operators

Batch density and API gravity checks for pipeline nominations and records.

Laboratory Capabilities

Analytical Systems

Our Crude Oil Testing Services use digital density meters for ASTM D5002 and gravimetric equipment for Ramsbottom carbon residue (ASTM D524), operated under our ISO/IEC 17025 quality system.

Trade Support

  • Custody transfer panels & Dispute workflows
  • Tamper-evident sample handling & Manifesting
  • Samples accepted nationwide at our Houston laboratory
  • Rapid response analytical support for lifts
Analytical lab instruments for crude oil testing services

Sampling, Handling & Chain of Custody

Precision Crude Oil Testing Services rely on representative sampling from tanks, pipelines, or tanker liftings. We provide guidance for standard protocols and accept high-pressure cylinders or jars with a completed CoC.

Download Chain of Custody Form

Containers & Handling

  • Use clean metal or glass containers with tight closures.
  • Record temperature and upstream processing (Desalter, Treater).
  • Split samples for parallel independent testing for trade resolution.

Transport & Logistics

  • Seal with tamper-evident closures and include sample manifests.
  • Expedited shipping for Houston Port and Gulf Coast liftings.
  • Samples recorded and stored per technical requirement for dispute cases.

Quality & Reporting

Reports from our Crude Oil Testing Services include a technical Certificate of Analysis (COA) with method references, results, and measurement uncertainty on request.

  • ✓ COA with analyst initials and technical authorized signatory.
  • ✓ Secure PDF delivery and raw instrument file export.
  • ✓ Retained samples available for dispute cases.

Frequently Asked Questions

Which crude oil tests are accredited at AGT Labs?
Our PJLA ISO/IEC 17025 scope covers density, relative density and API gravity of crude oils by digital density meter (ASTM D5002) and Ramsbottom carbon residue (ASTM D524).
How should samples be split for trade disputes?
Collect multiple split samples at the same point using identical containers and procedures. Seal each with tamper-evident closures and document the chain-of-custody with witness signatures where required for defensible trade data.
Why is digital density (ASTM D5002) critical?
Digital density is fundamental for determining API gravity. In our Crude Oil Testing Services, this metric establishes the commercial value and classification of the petroleum slate, ensuring accuracy in custody transfer accounting.

Certify Your Crude Asset

Need reliable accredited Crude Oil Testing Services for Houston operations? Contact our technical team today for a custom quote.

Contact Technical Specialist
Contact us
Contact us
Scroll to Top