Who is responsible for ensuring that the material and applicator qualification test results are fully...

According to API 936, thecontractoris the entity responsible for overseeing and implementing the quality control system for refractory installation, which includes the documentation of all material and applicatorqualification test results. This responsibility includes maintaining traceability, ensuring compliance with testing protocols, and presenting evidence of conformity for review.

API 936 outlines that proper documentation is part of the contractor's quality assurance program and must be made available to the inspector and owner upon request. This ensures that refractory materials and installation personnel meet the project requirements before work proceeds.