Testing that Reaches the World

Coal and Coke Testing Services | Clark Testing

Coal and Coke Testing Services are essential for verifying the quality, composition, and performance characteristics of solid fuels used in steelmaking, energy production, and industrial processes. At Clark Testing, we deliver ISO 17025-accredited analytical testing for coal and coke materials. Our comprehensive lab services support clients in the mining, metallurgical, and utility sectors, helping them meet strict industry and environmental standards.

Our coal and coke testing services include proximate and ultimate analysis, calorific value determination, ash fusion temperature, Hardgrove Grindability Index (HGI), sulfur analysis, and trace element detection. For metallurgical coke, we also perform Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) testing, ensuring materials meet the demands of blast furnace operations.

Our Capabilities Include:

• Proximate Analysis – Moisture, ash, volatile matter, and fixed carbon

• Ultimate Analysis – Carbon, hydrogen, nitrogen, sulfur, and oxygen content

• BTU/Calorific Value Testing – Measuring energy content for combustion efficiency

• Ash Fusion Testing – Evaluating slagging behavior at high temperatures

• HGI Testing – Determining coal’s grindability and processing characteristics

• CRI/CSR Testing – Assessing coke reactivity and strength for steelmaking

• Trace Element Analysis – Detecting mercury, arsenic, lead, and other elements

All testing is conducted in accordance with ASTM and ISO methods, using calibrated instrumentation and rigorous quality controls. Clark Testing’s experienced chemists and lab technicians ensure that your results are accurate, timely, and suitable for regulatory reporting, process optimization, and material certification.

Industries Served:

• Steel and Metallurgy

• Coal Mining and Preparation

• Utility Power Generation

• Cement and Lime Manufacturing

• Environmental and Regulatory Compliance

Whether you're performing routine QA/QC or need certification-grade data for compliance or exports, Clark Testing provides dependable coal and coke testing services backed by decades of industry expertise.

Contact Us Today

Ready to get started or need a custom quote for your material testing needs? Contact Clark Testing to learn more about our coal and coke testing services and how we can support your operation.

Services Offered Includes:

• Laboratory Testing

  • Analysis of Coal & Coke
  • Float-Sink Washability Testing
  • Commercial & Supplier Lab Audits
  • Customized Quality Assurance Programs
  • Training Programs

• Sampling Services

  • Sample Collection
  • Lot Sampling
  • Channel Sampling
  • Manual Sampling
  • Sampling System Audits and Preventative Maintenance
  • Bias Testing

• Trade Services

  • Hold Inspection
  • Loading and Discharge Supervision
  • Rail, Vessel, and Barge Assessment
  • Draft Surveys
  • Quality and Quantity Evaluations

• Coal Preparation Plant Services

  • Plant Audit / Efficiency Testing
  • Plant Sampling
  • Coal Plant Optimization and Troubleshooting Consulting