API 936 Refractory Personnel

API 936 Refractory Personnel with Examination

API 936 Refractory Personnel

Course Overview
Pre-Requisites
Course Outline
Fee & Funding
Exam Detail

Training Duration: 32 hours

Examination: 4 hours

Closed Book

Brief:

Candidates can expect to learn about Refractory materials & their properties, Laboratory Testing Procedures, Installation, Quality Control, Post-installation Inspection and Acceptance of the Refractory Lining as per usage in Refineries, Power generation stations, Petrochemical facilities and chemical industries & referenced standards like ACI and ASTM.

Design, installation, inspection, and repair of refractory systems in Pressure vessels, Exchangers, Piping, Boilers, and Fired equipment will also be covered.

Modules:
1	What are Refractories, Various refractory materials	13	Technical terms and definitions, API 936 Overview
2	Desirable properties of refractory materials	14	Laboratory Testing Procedures, Material Qualification
3	Test methods and related calculations	15	Testing equipment, sample preparation techniques, test specimens
4	Refractory Installation methods (e.g. gunning, casting, ramming, and hand packing)	16	Sampling and sample preparation procedures
5	Procedures for determining optimal water content and mixing	17	Environmental factors (minimum and maximum temperatures)
6	Surface preparation and cleanliness requirements	18	Anchor: welding, layouts, patterns, materials
7	Frequency and methods of production sampling: gunning, casting, hand packing	19	Water addition: quantity and temperature, mixing procedures
8	Gunite procedures and equipment	20	Casting procedures and equipment (e.g. air vibrator, vibrator frequency, vibrator sizing, forming, setup)
9	Ramming/Hand packed procedures and equipment	21	Visual and non-destructive test methods and qualification testing methods
10	Application/limitation for various inspection techniques	22	Curing and dry out procedures
11	Placement of temperature sensing probes	23	Recommended heat up and cool down schedules
12	Lining integrity inspection techniques

Quick Links

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Education: No specific degree or diploma is strictly required by API, but candidates should have a background in engineering, materials, or inspection-related fields.
Experience: API recommends relevant work experience in refractory installation, inspection, or quality control. Typically, at least 2 years of industry experience is advisable before attempting the exam.

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📘 API 936 – Refractory Personnel Certification

1. Exam Format:

Computer-based exam (at Prometric test centers worldwide, including Singapore).

Closed book (no reference materials allowed).

Questions are multiple-choice.

2. Number of Questions & Duration:

110 questions total
100 scored questions
10 pretest (unscored, for exam validation)
Time allowed: 3.25 hours

3. Exam Language:

English only

4. Passing Score:

Scaled scoring system
Passing score is usually around 70% (API does not publish exact raw cutoffs, but ~70 correct answers is a safe benchmark).

5. Body of Knowledge (BoK) Covers:

API 936 Code requirements
Refractory materials (types, properties, specifications)
Material testing methods (ASTM/ISO)
Installation methods (castables, brick, plastics, gunite, etc.)
Curing, drying, firing procedures
Inspection & quality control
Common defects and failure modes
Documentation and reporting

6. Exam Frequency:

Available year-round (on-demand scheduling through Prometric once application is approved).

7. Certificate Validity:

3 years from the exam date
Renewal requires either: Re-exam, or Meeting API’s recertification requirements (CPD / experience declaration).

8. Application Process:

Submit application via API Individual Certification Program (ICP) portal.
Once approved, schedule exam with Prometric.

Courses

API 936 Refractory Personnel with Examination

API 936 Refractory Personnel

📘 API 936 – Refractory Personnel Certification