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2019 Statistics for the API 936 Certification Program

API 936 Certification Program

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API 936 Certification Program

API 936 Refractory Inspection Code


Refractory materials and lining reliability are key to increasing the performance of fired heaters, incinerators, kilns and reactors across a range of industries. The proper refractory lining optimises production yield and minimises energy costs, while enabling consistent high performance of a furnace over the lifecycle of the refractory lining for as long as 20 years.

However, it is not uncommon for a refractory material to fail, resulting in energy wastage, reduced performance and in some cases, complete heater shutdown. Through proper training and industry-recognised certifications, personnel are equipped with the right knowledge and skillset to reduce the risk of failure. This increases the lifespan of assets while improving reliability.

According to the latest ICP Statistics as of April 2019, there is a rising number of applications in the API 936 program, of which 45.68% of certified individuals serve the petroleum industry. This highlights the rising importance and recognition the API 936 program is gaining across the industry. Hence, it is important that every refractory personnel gain their certification and meet the industry standards.

Number of applications in the API 936 program:



ICP currently has over 36,000 inspectors in 130 countries:
Worldwide Certified Inspectors (Top 10)

Top 10 CountriesCertified Individuals%GT Certified Individuals
United States1766348.04%
South Korea18575.05%
United Arab Emirates9602.61%
United Kingdom6351.73%


To be eligible for the API 936 certification, candidates need to have experience in the petroleum and petrochemical industries, as well as those want to gain industry experience. The candidate must have knowledge of installation, inspection, testing and repair of refractory linings.

  • Quality Control
  • Physical Property Requirements
  • Inspection Documentation
  • Material Qualification Testing
  • Applicator Qualification Testing
  • Installation
  • As-installed Testing
  • Test Specimen Preparation
  • Test Procedures
  • Post Installation


For the API 936 examinations, questions and topics are based on the following documents:


API 936 Refractory Definitions Guide


API 936 Refractory Inspection Code is a 3-day training course held from 9 – 11 December 2019 in Kuala Lumpur, designed to prepare and train candidates for the API 936 examination. It will provide an intensive overview of on refractory installation, inspection, testing and repair in accordance with API 936 Standard. Candidates will gain an in-depth understanding on the laboratory testing procedures, be able to identify the various material qualification needed in the installation, sample preparation and surface separation requirements of the refractory system, list installation procedures and equipment and more. 

API 936 Certification Program
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