Naphtha Testing for Refinery Feeds & Petrochemical Streams

Petrochemical Feedstock Analysis & Naphtha Fraction Compliance Testing

AGT Labs provides professional Naphtha Testing to characterize light naphtha, heavy naphtha, and full-range naphtha streams for refinery operations, petrochemical feedstock qualification, and solvent-grade product certification. Our Houston facility specializes in accredited detailed hydrocarbon composition (ASTM D8150), sulfur speciation (ASTM D5623), density, corrosion, color, and acidity to ensure your naphtha meets downstream processing and commercial specification requirements.

Our analytical services support refineries, petrochemical crackers, and solvent formulators with precise analytical data. Whether qualifying reformer feed naphtha for catalytic processing, verifying the purity of industrial-grade solvent naphtha, or assessing the aromatic content of a blending stream, we provide the critical characterization needed to optimize yield, protect catalyst systems, and ensure product specification compliance.

Key Technical Parameters

Accredited analysis supporting our technical testing suite for refinery, petrochemical, and solvent-grade naphtha compliance.

HC Composition (GC)
ASTM D8150
Sulfur Speciation
ASTM D5623
Copper Corrosion
ASTM D130
Density & API Gravity
ASTM D5002
Free Water & Particulates
ASTM D4176
Color (Pt-Co Scale)
ASTM D1209
Gum Content
ASTM D381
Odor
ASTM D1296

Industries We Serve

Delivering specialized naphtha fraction analysis and petrochemical feedstock data across refining and downstream processing utilizing our specialized analytical services.

Catalytic Reforming Units

Qualifying reformer feed naphtha for detailed hydrocarbon composition and sulfur content to protect platinum catalyst systems and optimize yield.

Steam Cracker Operators

Providing detailed naphtha feedstock characterization to optimize ethylene yield and verify paraffinic content for cracking efficiency.

Refinery Blending Units

Accredited quality control for gasoline blending component verification and compositional compliance for final product release.

Solvent Manufacturers

Certifying industrial solvent naphtha purity, aromatic content thresholds, and acidity compliance for commercial and regulatory requirements.

Petrochemical Traders

Providing independent third-party naphtha quality verification and cargo sampling support for international trade and letter of credit compliance.

Terminals & Storage

Monitoring naphtha product integrity during inter-tank transfers and protecting against contamination and specification drift in long-term storage.

Laboratory Capabilities

Analytical Systems

Our Naphtha Testing utilizes high-resolution gas chromatography for accredited ASTM D8150 detailed hydrocarbon analysis, PFPD for ASTM D5623 sulfur speciation, and digital density meters. We are equipped to handle a comprehensive suite of PJLA accredited physical and chemical characterizations across wide naphtha boiling ranges.

Advanced Technical Support

  • ISO/IEC 17025:2017 Accredited Laboratory Operations
  • Rapid Turnaround for Refinery and Port Logistics Readiness
  • Full-Range, Light & Heavy Naphtha Fraction Differentiation
  • Trace Contaminant, Chloride & Nitrogen Speciation Screening
Laboratory instruments for naphtha fraction and petrochemical feedstock analysis

Sampling, Handling & Chain of Custody

Reliable Naphtha Testing depends on contamination-free sampling to prevent inaccurate hydrocarbon compositional results and trace sulfur anomalies. We provide specialized sampling containers with nitrogen-blanketed caps and completed CoC documentation to preserve the volatile naphtha fraction integrity from source to laboratory.

Download Chain of Custody Form

Containers & Handling

  • Use only clean, sealed glass or stainless steel containers to prevent light-end naphtha evaporation loss.
  • Minimize headspace and seal immediately after sampling to preserve vapor pressure accuracy.
  • Flush sample lines thoroughly to ensure the collected fraction is representative of the bulk naphtha stream.

Transport & Logistics

  • Record sampling temperature, pressure, and stream identification to support composition and density correlation.
  • Expedited chilled shipping to our Houston laboratory for volatile light naphtha fractions.
  • Samples stored in a temperature-controlled environment per flammable material handling and technical safety compliance standards.

Quality & Reporting

Reports from our laboratory testing provide precise technical clarity for refinery feedstock qualification, petrochemical specification compliance, and commercial product certification.

  • ✓ Results issued under ISO/IEC 17025:2017 accreditation (PJLA Cert. L25-276) — fully traceable and defensible for custody transfer.
  • ✓ COA with full method references, results, and certified authorized signatory.
  • ✓ Secure PDF Delivery via automated client technical portal.
  • ✓ Consultation for out-of-spec sulfur, corrosion, or hydrocarbon composition anomalies.

Frequently Asked Questions

What does ASTM D8150 measure in naphtha?
ASTM D8150 is the standard method for detailed hydrocarbon analysis of petroleum naphthas through n-Nonane by GCFID. It identifies and quantifies individual hydrocarbon compounds by carbon number and compound class — paraffins, naphthenes, and aromatics — providing a full PONA (or PIANO) composition profile. This data is critical for refinery reformer feed qualification, cracker feedstock value assessment, and solvent grade characterization.
Why is trace sulfur speciation important for naphtha reformer feeds?
Catalytic naphtha reformers use platinum-based catalysts that are extremely sensitive to sulfur poisoning. Even trace levels of thiophenes, mercaptans, or sulfides can permanently deactivate catalyst sites, reducing reformate octane yield and increasing catalyst replacement costs. Our accredited ASTM D5623 testing identifies individual sulfur compounds at sub-ppm concentrations to protect operations.
How quickly can I receive naphtha testing results?
Routine analysis via our Naphtha Testing is typically delivered within 24 to 48 hours. We offer expedited rush turnaround for Houston-area refinery operations and time-sensitive cargo release requirements at Gulf Coast terminals.
Can you test both light naphtha and heavy naphtha fractions?
Yes. Our Naphtha Testing covers the full boiling range spectrum — light naphtha (C5–C6, IBP to ~150°C), heavy naphtha (C7–C10, 150°C to ~200°C), and full-range naphtha streams. Each fraction has distinct distillation, compositional, and volatility characteristics. We tailor the analytical scope to the specific stream type and your downstream processing or commercial specification requirements.
Which naphtha tests are performed under your ISO/IEC 17025 accreditation?
Our ISO/IEC 17025:2017 accreditation (PJLA Certificate No. L25-276) covers a comprehensive suite of methods applicable to naphtha testing under the scope of "Hydrocarbon products". This includes ASTM D8150 (Detailed Analysis of Petroleum Naphthas), as well as ASTM D5623, ASTM D5002, ASTM D130, ASTM D1209, ASTM D1218, ASTM D1613, ASTM D381, ASTM D1353, ASTM D4176, and ASTM D524. Accreditation status can be verified at www.pjlabs.com, Accreditation No. 118590.

Certify Your Naphtha Quality with Accredited Testing Services

Need reliable accredited Naphtha Testing for Houston refinery or petrochemical operations? Contact our Houston technical team today for a custom naphtha analysis quote.

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