Accredited Ethanol Quality & Blend Verification
AGT Labs provides professional Ethanol Testing Services to verify the quality of denatured fuel ethanol and gasoline-ethanol blends. Our Houston-based laboratory is ISO/IEC 17025 accredited for high-precision ethanol content determination via ASTM D5501, supporting fuel producers, blending terminals, and refineries with defensible analytical data.
In addition, our Ethanol Testing Services support fuel ethanol producers, gasoline blenders, and renewable fuel marketers across the U.S. Gulf Coast and worldwide. Whether verifying E10, E15, or E85 blend ratios for EPA Renewable Fuel Standard (RFS) compliance, confirming pHe per ASTM D6423 to prevent engine corrosion, or screening for inorganic sulfate and chloride contaminants per ASTM D7328, we deliver the precise results required for cargo certification and finished fuel quality control.
Accredited Test Parameters
Every ethanol test listed below is on our PJLA ISO/IEC 17025 scope of accreditation (Certificate L25-276).
Ethanol & Methanol Content (GC-FID)
ASTM D5501Higher Alcohols, Methanol & Volatile Impurities
EN 15721pHe
ASTM D6423Inorganic Sulfate & Chloride (IC)
ASTM D7328Acidity
ASTM D1613Gum Content
ASTM D381Color (Pt-Co)
ASTM D1209Nonvolatile Matter
ASTM D1353Refractive Index
ASTM D1218Odor
ASTM D1296Industries We Serve
Providing accredited ethanol analysis across fuel production, blending, and renewable energy sectors utilizing our Ethanol Testing Services.
Fuel Ethanol Producers
Verifying denatured fuel ethanol batch quality, including methanol, higher alcohols and volatile impurities (EN 15721), pHe and inorganic sulfate and chloride.
Gasoline Blending Terminals
Confirming E10, E15, and E85 blend ratios per ASTM D5501 to ensure finished gasoline meets retail and regulatory specifications.
Refineries & Splash Blenders
Acceptance testing of incoming ethanol cargoes for ethanol content, pHe and contaminant screening before blending operations.
Renewable Fuel Compliance
Analytical support for EPA Renewable Fuel Standard (RFS2) compliance, RIN generation documentation, and low-carbon fuel program reporting.
Marine & Export Cargo
Independent third-party ethanol testing for Houston port export shipments, custody transfer verification, and international trade compliance.
Specialty Chemical Distributors
Quality verification of industrial-grade and technical ethanol for solvent applications, formulation QC, and bulk distribution.
Laboratory Capabilities
Analytical Systems
Our Ethanol Testing Services use Gas Chromatography with Flame Ionization Detection (GC-FID) for ethanol, methanol and higher alcohols (ASTM D5501, EN 15721), Ion Chromatography for inorganic sulfate and chloride (ASTM D7328), and pH meters calibrated for ASTM D6423 pHe measurement. We maintain strict NIST-traceable calibration to detect contaminants at trace levels critical for fuel injector and engine reliability.
Advanced Technical Support
- ISO/IEC 17025:2017 Accredited Laboratory Operations
- Rapid Turnaround for Time-Sensitive Cargo & Blending
- Contaminant Identification & Off-Spec Troubleshooting
Sampling, Handling & Chain of Custody
Reliable Ethanol Testing Services depend on careful sampling to prevent moisture absorption, evaporation losses, and contamination. We provide specialized clean amber glass or HDPE containers along with technical guidance for representative sample collection from storage tanks, blending lines, and cargo holds.
Download Chain of Custody FormContainers & Handling
- Use clean, dry amber glass or HDPE containers; avoid materials that may leach contaminants.
- Minimize headspace to prevent evaporation and oxidation of denatured ethanol.
- Seal tightly with tamper-evident closures to maintain hygroscopic sample integrity.
Transport & Logistics
- Label clearly with Batch ID, Source Location, Denaturant Type, and Sampling Date.
- Include Safety Data Sheets (SDS) for denatured ethanol shipments per DOT regulations.
- Expedited intake for Houston refinery, terminal, and Gulf Coast export logistics.
Quality & Reporting
Overall, reports from our Ethanol Testing Services provide definitive quality assurance for fuel production QC, cargo custody transfer, and EPA renewable fuel compliance documentation.
- COA with full specification limits and analyst verification.
- Secure PDF Delivery via automated client technical portal.
- Measurement uncertainty available on request.
- Expert consultation for off-spec contamination issues.
Frequently Asked Questions
What is ASTM D5501 and why is it important for ethanol testing?
Why is pHe (ASTM D6423) measured in denatured fuel ethanol?
What contaminants does ASTM D7328 detect in fuel ethanol?
How fast can I get ethanol testing results?
Certify Your Fuel Ethanol Quality
Need reliable accredited Ethanol Testing Services for Houston blending operations, refinery acceptance, or RFS compliance? Contact our technical team today for a custom analysis quote.
Contact Technical Specialist