Precise Quality Verification for Performance Chemicals
AGT Labs provides professional Petroleum Additive Testing Services using methods on our PJLA ISO/IEC 17025 scope of accreditation (Certificate L25-276) to check the quality of additive packages and specialty chemicals.
We also provide specialized analytical support for essential chemical intermediates, including Diethylene Glycol (DEG) and Monoethylene Glycol (MEG). Accredited color, acidity, nonvolatile matter and refractive index results support downstream polymerization, resin manufacturing, and industrial coolant production. For fuel ethanol testing, please see our dedicated Ethanol Testing Services page.
Our Petroleum Additive Testing Services support manufacturers, blenders, and fuel marketers with accredited data including sulfur compounds (ASTM D5623), oxygenates (ASTM D4815), copper corrosion (ASTM D130), pH of engine coolants and antirusts (ASTM D1287), analysis of caustic soda and caustic potash (ASTM E291) and electrical conductivity of water (ASTM D1125).
Accredited Test Parameters
Every test listed below is on our PJLA ISO/IEC 17025 scope of accreditation (Certificate L25-276).
Sulfur Compounds (GC-PFPD)
ASTM D5623Oxygenates & Alcohols (GC-MS)
ASTM D4815Refractive Index
ASTM D1218Copper Strip Corrosion
ASTM D130Acidity
ASTM D1613Nonvolatile Matter
ASTM D1353Color (Pt-Co Scale)
ASTM D1209pH of Engine Coolants & Antirusts
ASTM D1287Caustic Soda & Caustic Potash Analysis
ASTM E291Conductivity & Resistivity of Water
ASTM D1125Chemical Intermediates & Specialty Profiles
Accredited quality checks for glycols used in gas dehydration, resins, polyester and coolants.
Diethylene Glycol (DEG)
Comprehensive testing for DEG utilized in natural gas dehydration processes, unsaturated polyester resins, and heavy-duty antifreeze formulations. Our accredited DEG tests cover color on the Pt-Co scale (ASTM D1209), acidity (ASTM D1613), nonvolatile matter (ASTM D1353) and refractive index (ASTM D1218), helping plant operators catch contamination and degraded glycol.
- → Color (Pt-Co Scale) ASTM D1209
- → Acidity (as Acetic Acid) ASTM D1613
- → Nonvolatile Matter ASTM D1353
- → Refractive Index ASTM D1218
Monoethylene Glycol (MEG)
Rigorous quality assurance for MEG shipments destined for critical applications such as PET plastics, polyester fiber production, and industrial coolants. Our accredited MEG tests cover color on the Pt-Co scale (ASTM D1209), acidity (ASTM D1613), nonvolatile matter (ASTM D1353) and refractive index (ASTM D1218). For glycol-based engine coolants and antirusts, we also measure pH (ASTM D1287).
- → Color (Pt-Co Scale) ASTM D1209
- → Acidity (as Acetic Acid) ASTM D1613
- → Nonvolatile Matter ASTM D1353
- → Refractive Index ASTM D1218
- → pH of Glycol Coolants ASTM D1287
Industries We Serve
Providing precision technical data for performance chemicals utilizing our Petroleum Additive Testing Services capabilities.
Additive Manufacturers
Accredited batch QC data for global product distribution.
Refinery & Blending
Checking incoming additive packages and blend stocks for corrosiveness, sulfur compounds and contamination.
Specialty Chemicals
Refractive index, color, acidity and nonvolatile matter testing for industrial chemicals, including MEG and DEG.
Fuel Marketers
Acceptance testing for performance additive packages (antioxidants, CFIs) to protect fuel integrity.
Coolant & Caustic Users
pH of engine coolants and antirusts (ASTM D1287) and caustic soda / potash analysis (ASTM E291).
Terminal Operators
Monitoring for cross-contamination during bulk additive storage and specialized transfer operations.
Laboratory Capabilities
Analytical Systems
Our Petroleum Additive Testing Services use GC-PFPD for sulfur compounds, GC-MS for oxygenates, refractometers, pH and conductivity meters, titration for caustic analysis and acidity, and gravimetric nonvolatile matter determination.
Advanced Technical Support
- ISO/IEC 17025:2017 Accredited Laboratory Operations
- Glycol, Coolant & Caustic Quality Testing
- Inter-Laboratory Correlation Participation
- Rapid Technical COA Data Delivery via Portal
Sampling, Handling & Chain of Custody
Reliable Petroleum Additive Testing Services and intermediate chemical profiling (especially for moisture-sensitive glycols like MEG and DEG) depend on clean, dry sampling to prevent moisture ingress or chemical reaction. We provide technical sampling kits and specialized amber glass containers with a completed CoC.
Download Chain of Custody FormContainers & Handling
- Use clean amber glass to prevent UV-induced degradation of active components.
- Minimize headspace to prevent oxidation of oxygen-sensitive additive chemicals.
- Seal with tamper-evident closures to maintain technical sample integrity.
Transport & Logistics
- Include Safety Data Sheets (SDS) for all technical chemical and additive samples.
- Expedited intake for Houston refinery, blending plant, and terminal logistics.
- Samples recorded and stored per technical ISO 17025 environmental requirements.
Quality & Reporting
Reports from our Petroleum Additive Testing Services provide technical certainty for production QC, commercial dispute resolution, and industrial formulation auditing for specialty chemicals like DEG and MEG.
- COA with method references, results, and certified signatures.
- Rapid turnaround for time-sensitive high-value production batches.
- Secure PDF data delivery via automated technical client portal.
- Measurement uncertainty available on request.
Frequently Asked Questions
Do you test engine coolants?
Why is sulfur speciation (ASTM D5623) important?
Do you test chemical intermediates like MEG and DEG?
How fast can I get technical COAs?
Certify Your Chemical Package with Petroleum Additive Testing Services
Need reliable accredited Petroleum Additive Testing Services for Houston operations? Contact our technical team today for a custom additive analysis quote.
Contact Technical Specialist