Independent Refractory Inspection & QA/QC Services Api 936 Api 982 Worldwide

We provide independent, third-party Quality Assurance and Quality Control (QA/QC) services for refractory lining installations in vessels, furnaces, ducts, heaters, and burners, fully aligned with API 936 standards, client specifications, and international codes.
Our end-to-end expertise covers every critical project stage, beginning with Material & Applicator Qualification (MQ/AQ) and material compliance verification—including the witnessing of physical property laboratory tests such as density, Cold Crushing Strength (CCS), and Permanent Linear Change (PLC) under API 936 and ASTM standards. Prior to application, we conduct rigorous inspections of substrate surface preparation according to SSPC-SP 10 (AMPP) and Sa 2.5 (BGAS) standards, alongside the verification of anchoring layouts, welding, and alloy grades.
Throughout execution, we manage Inspection Test Plans (ITP) with strict hold and witness points, while delivering direct on-site supervision for gunning, casting, hand-packing, and anchoring to verify mixing ratios, placement techniques, and overall workmanship. Close monitoring continues during curing and environmental control—tracking ambient temperatures and water-to-cement ratios—as well as during the refractory dry-out process to enforce heating schedules and prevent structural failures or steam spalling.
To ensure complete transparency and asset integrity, we perform troubleshooting and defect management by identifying failure mechanisms like thermal shock, erosion, corrosion, or anchor failure and executing corrective action procedures. Our comprehensive turnaround, shutdown, and grassroots project support includes visual inspections with thorough photographic documentation, thickness measurements, non-conformity tracking, and detailed post-turnaround inspection reporting.