Base Oil Testing Houston | Lubricant Analysis

Precision Quality Profiling for Lubricant Base Stocks

AGT Labs provides professional Base Oil Testing for base stock Groups I, II and III using ISO/IEC 17025 accredited methods for refractive index, color, density and API gravity, copper strip corrosion and Ramsbottom carbon residue. Whether managing import batch quality or checking stored stock for contamination, we deliver accredited results that support consistent formulations.

Accredited Test Parameters

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

Refractive Index

ASTM D1218

Color (Tristimulus)

ASTM D6045

Density & API Gravity

ASTM D5002

Copper Strip Corrosion

ASTM D130

Ramsbottom Carbon Residue

ASTM D524

Industries We Serve

Providing precision technical data across the lubricant supply chain utilizing our specialized analytical services.

Lubricant Blenders

Verifying base stock quality to ensure formulation consistency in finished oils.

Base Oil Refiners

Accredited quality control for Group I, II, and III base stocks to meet global industry trade standards.

Additive Manufacturers

Batch-to-batch verification of base stocks used in additive R&D and QC.

Industrial End-Users

Independent verification of incoming bulk shipments before use in industrial systems.

Petroleum Traders

Providing third-party technical COAs for international cargo transfers and specification reconciliation.

MRO Providers

Supporting Maintenance, Repair, and Overhaul facilities with baseline technical stock analysis.

Laboratory Capabilities

Analytical Systems

Our laboratory uses refractometers, automatic tristimulus colorimeters, digital density meters, copper strip corrosion baths and gravimetric carbon residue equipment.

Advanced Technical Support

ISO/IEC 17025 Accredited Laboratory Procedures
Batch Quality Consistency Monitoring
Inter-Laboratory Cross-Check Participation
Rapid Data Availability via Secure Portal

Analytical lab instruments for lubricant analysis

Sampling, Handling & Chain of Custody

Accurate Base Oil Testing requires meticulous sampling to prevent cross-contamination from other petroleum products. We provide technical sampling kits and clean glass containers with a completed CoC.

Download Chain of Custody Form

Containers & Handling

Use clean amber glass bottles to protect samples from light.
Flush sampling lines to ensure a representative volume of the current batch.
Seal immediately to prevent moisture ingress from humid air.

Transport & Logistics

Label clearly with Batch ID, API Group, and Refinery origin.
Ship promptly; keep samples cool during transit.
Samples recorded on receipt and stored per technical ISO requirements.

Quality & Reporting

Reports from our Base Oil Testing provide technical clarity for blending decisions and regulatory conformance audits.

✓ COA with full technical batch details & analyst verification.
✓ Secure PDF Delivery via secure client portal.
✓ Measurement uncertainty data available upon request.
✓ Technical review of out-of-spec results.

Frequently Asked Questions

Which base oil tests are accredited at AGT Labs?

Our PJLA ISO/IEC 17025 scope covers refractive index (ASTM D1218), color (ASTM D6045), density and API gravity (ASTM D5002), copper strip corrosion (ASTM D130) and Ramsbottom carbon residue (ASTM D524).

Why is Refractive Index (ASTM D1218) tested in Base Oils?

Refractive Index is a rapid screening tool in our Base Oil Testing used to detect batch-to-batch variability. It correlates with molecular composition, helping to identify potential contamination or blending errors.

Certify Your Lubricant Base Stock

Need reliable accredited Base Oil Testing for Houston-area blending? Contact our Houston technical team today for a custom analysis quote.

Contact Technical Specialist

Base Oil Testing Services & Lubricant Analysis