Fuel Oil Testing & Bunker Analysis

Providing ISO/IEC 17025 accredited laboratory analysis for ISO 8217 compliance, VLSFO verification, and marine bunker quality assurance.

Bunker Fuel Quality & IMO 2020 Compliance

AGT Labs provides professional Fuel Oil Testing to verify the stability, compatibility, and combustion properties of marine and heavy industrial fuels. Our Houston-based laboratory specializes in high-viscosity matrix analysis, checking for cat fines (Al+Si), asphaltene stability, and sulfur compliance to ensure your bunker fuel meets strict ISO 8217 and MARPOL Annex VI regulations.

Our analytical services support ship owners, bunkering terminals, and power plants with accredited technical data. Whether verifying Very Low Sulfur Fuel Oil (VLSFO) blends or monitoring heavy fuel oil (HFO) for catalytic fines that cause engine wear, we offer the precise results needed to protect high-value assets and avoid costly demurrage.

Value for Stakeholders: Ship Owners preventing engine damage, Bunkering Terminals ensuring ISO 8217 spec compliance, and Power Plants optimizing combustion efficiency through our laboratory analysis.

Accredited Fuel Oil Testing Highlights

  • Sulfur Content for IMO 2020 Compliance (ASTM D5623)
  • Viscosity @ 50°C & 100°C (ASTM D445)
  • Cat Fines Analysis (Aluminum + Silicon)
  • Flash Point & Safety Screening (ASTM D93)
  • Pour Point & Flow Properties (ASTM D97)
  • Water & Sediment (ASTM D1796)
  • Asphaltene Stability & Compatibility Checks
  • Density & API Gravity (ASTM D5002)

Key Technical Parameters

Accredited analysis supporting our technical testing suite for marine and industrial energy standards.

Sulfur Content
ASTM D5623
Kin. Viscosity
ASTM D445
Flash Point
ASTM D93
Density
ASTM D5002
Pour Point
ASTM D97
Water & Sediment
ASTM D1796
Carbon Residue
ASTM D189
Ash Content
ASTM D482
Cat Fines (Al+Si)
IP 501 / IP 470
Compatibility
ASTM D4740
Calorific Value
ASTM D240
Total Sediment
ASTM D4870

Industries We Serve

Providing specialized heavy fuel data across the maritime and industrial sectors utilizing our specialized analytical services.

Marine Shipping

Ensuring bunker fuels meet ISO 8217:2017 specs and IMO 2020 sulfur caps to prevent fines and engine damage.

Bunkering Terminals

Verification of VLSFO and HFO blends before custody transfer to guarantee product quality and compatibility.

Power Generation

Monitoring heavy fuel oil quality for base-load and backup power plants to optimize turbine efficiency.

Industrial Boilers

Testing residual fuels for calorific value and contaminants to ensure safe and efficient boiler operation.

Fuel Traders

Independent analysis for cargo trading, blending verification, and resolving commercial quantity/quality disputes.

Insurance & P&I Clubs

Forensic fuel analysis to investigate engine failures, sludge formation, and off-spec bunker claims.

Laboratory Capabilities

Analytical Systems

Our laboratory utilizes high-temperature viscosity baths, XRF sulfur analyzers for rapid compliance checks, and ICP-OES for detecting abrasive catalytic fines (Al+Si). We are equipped to handle heavy, viscous residual fuels and VLSFO blends.

Advanced Technical Support

  • ISO/IEC 17025:2017 Accredited Laboratory Operations
  • Rapid Turnaround for Demurrage-Sensitive Operations
  • VLSFO Stability & Compatibility Assessments
  • Investigative Analysis for Sludge & Precipitates
Analytical lab instruments for marine fuel analysis

Sampling, Handling & Chain of Custody

Accurate Fuel Oil Testing starts with representative sampling, especially for identifying stratified contaminants. We provide bunker drip samplers and proper containers with a completed CoC.

Download Chain of Custody Form

Containers & Handling

  • Use clean metal cans or high-density plastic bottles approved for heavy fuels.
  • Ensure drip sampling is continuous throughout the bunkering process (MARPOL sample).
  • Label clearly with Vessel Name, Bunker Delivery Note (BDN) number, and Port.

Transport & Logistics

  • Seal samples with tamper-evident tags recorded on the BDN.
  • Expedited shipping to our Houston lab for immediate testing upon vessel arrival.
  • Retained samples stored for dispute resolution per maritime regulations.

Quality & Reporting

Reports from our laboratory testing offer definitive proof of quality for regulatory bodies and commercial partners.

  • ✓ COA with full ISO 8217 specs and analyst verification.
  • ✓ Secure PDF Delivery via automated client technical portal.
  • ✓ Measurement uncertainty included for critical sulfur limits.
  • ✓ Expert consultation on fuel treatment and handling.

Standards & Accreditation

AGT Labs is ISO/IEC 17025 accredited. We perform comprehensive testing strictly adhering to ASTM, ISO, and IP technical methodologies.

ASTM D97
ASTM D5623
ASTM D445
ASTM D93
ISO/IEC 17025
ASTM D4870

Ensuring maritime compliance through traceable Fuel Oil Testing data.

Frequently Asked Questions

Why are Cat Fines (Al+Si) critical in fuel oil?
Catalytic fines are abrasive particles remaining from the refining process. If not detected by our Fuel Oil Testing and removed, they can cause catastrophic wear to cylinder liners and piston rings in marine engines.
What is VLSFO stability testing?
Very Low Sulfur Fuel Oils can be unstable and prone to sludge formation. We test for total sediment potential (TSP) and compatibility to ensure the fuel remains stable during storage and handling on board.
How fast can I get bunker fuel results?
Standard analysis via our Fuel Oil Testing is typically available within 24 to 48 hours. We offer expedited rush services for vessels with tight turnaround times in the Houston port area.
Do you support bunker quality disputes?
Yes, our accredited lab data serves as independent, third-party verification. We assist in investigating off-spec claims related to density, water content, sulfur, and other ISO 8217 parameters.

Certify Your Bunker Quality with Fuel Oil Testing

Need reliable accredited Fuel Oil Testing for Houston maritime operations? Contact our Houston technical team today for a custom analysis quote.

Contact Technical Specialist
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