Radiographic Testing (RT) Level I & II Certification Course
Industrial X-Ray · Gamma Ray · Radiographic Film Interpretation (RTFI)
ASNT SNT-TC-1A · ISO 9712 · NAS 410 · Online & Offline · Bangalore, India
- ☢️NABL X-Ray Lab Practicals
- 🔬AERB Licensed RSO In-House
- 🏆28+ Years Experience
- 🌍45+ Countries Represented
Radiographic Testing RT Level 1, 2 Training & Certification Courses as per ASNT SNT TC 1A & ISO9712
Radiographic Testing (RT) is one of the most technically demanding — and most highly valued — Non-Destructive Testing methods in the world. Used to detect internal flaws in welds, castings, forgings, pressure vessels, and pipelines, RT requires a thorough understanding of radiation physics, film processing, image interpretation, and strict radiation safety protocols mandated by the Atomic Energy Regulatory Board (AERB) of India.
Trinity NDT WeldSolutions offers RT Level I and Level II certification training at its NABL ISO/IEC 17025:2017 accredited laboratory in Peenya, Bangalore — one of the very few training institutes in India equipped with both a dedicated X-ray enclosure and an active Iridium-192 (Ir-192) Gamma Ray source for hands-on practical sessions. This means trainees learn industrial radiography on the same equipment used in production inspection — not on demonstration simulators.
Courses are conducted by ASNT Level III certified trainers who are also licensed Radiological Safety Officers (RSO) from AERB/BARC — a critical credential that sets Trinity NDT’s RT training apart from all other institutes in India.
Training is available under two certification schemes — ASNT SNT-TC-1A and ISO 9712 — in both online (live virtual) and offline (in-person at Bangalore) formats. Onsite training at your facility is also available anywhere in India.
⚡ What No Other RT Training Institute in India Can Offer You
X-Ray Enclosure
Dedicated shielded X-ray room for full practical training on production-grade X-ray equipment (not simulation)
Active Iridium-192 (Ir-192) Gamma Ray Source
Practise actual gamma radiography on real industrial specimens (welds, castings, pipes)
AERB/BARC Licensed RSO In-House
Your trainers are Radiological Safety Officers certified by India's Atomic Energy Regulatory Board — the qualification required to legally operate radiation sources in India
NABL Accredited RT Lab
NABL ISO/IEC 17025:2017 accreditation means every radiograph produced in our lab meets the highest quality standard recognised by all Indian regulatory bodies
Hundreds of Reference Radiographs
Curated collection of weld and casting radiographs from real production inspection — interpret actual defect films, not textbook illustrations
Computed Radiography (CR) & Digital RT
Exposure to modern CR systems used in ASME, API, and aerospace radiography alongside traditional film RT
RT Course Details at a Glance
| Parameter | RT (SNT-TC-1A) Offline |
RT/RTFI (SNT-TC-1A) Online |
ISO 9712 RT Offline |
|---|---|---|---|
| Duration | 4–5 Days | 3–4 Days (Live) | 6–7 Days (ISO 25107) |
| Training Hours | 40 Hours (Level I+II combined) | Theory hours covered | Per ISO 25107 requirements |
| Levels Available | Level I & II | Level II / RTFI | Level I & II |
| Batch Size | Max 15 participants | Max 15 participants | Max 10 participants |
| Practical Equipment | X-Ray enclosure + Ir-192 Gamma source | Theory only (practical on request) | X-Ray enclosure + Ir-192 Gamma source |
| Certificate Issued By | Employer / Trinity NDT | Employer / Trinity NDT | TWI India (ISO 17024) |
| Examiner | Trinity NDT ASNT Level III | Trinity NDT ASNT Level III | TWI India Pvt Ltd (Third Party) |
| Radiation Safety (AERB) | Covered in theory + practical | Covered in theory | Covered per ISO 9712 scope |
| On-site at Your Location | ✅ Pan-India | N/A | ✅ Pan-India |
Complete RT Course Curriculum — What You Will Learn
RT Level I — Theory & Practical Modules
✅ Module 1 — Nuclear Physics & Radiation Fundamentals. Nature of X-rays and gamma rays; ionising radiation properties; radioactive decay; half-life; specific activity; units of radiation
✅ Module 2 — Radiation Sources
X-ray tubes (constant potential, impulse type); radioactive isotopes. (Ir-192, Co-60, Se-75, Yb-169); source sizes and specific activity; Becquerel and Curie units
✅ Module 3 — Interaction of Radiation with Matter
Photoelectric effect, Compton scattering, pair production; attenuation; scatter radiation and its effect on image quality
✅ Module 4 — Radiation Protection & Safety (AERB Rules) Biological effects of radiation; dose units (mSv, Sv); ALARA principle; permissible dose limits (occupational & public); AERB regulatory requirements for India; shielding calculations; radiation detectors (TLD badge, Geiger-Müller counter, dosimeter)
✅ Module 5 — Radiographic Film & Processing
Film types (fine grain, medium, fast); film characteristics — density, contrast, definition, graininess; H&D curve;
manual and automatic film processing; darkroom techniques; sensitometric control; film artifacts and their causes
✅ Module 6 — Image Quality Indicators (IQI / Penetrameters) Wire type (EN 462-1, ASTM E747); hole-type (ASTM E1025); step-hole type; IQI placement rules; sensitivity definition
✅ Module 7 — Radiographic Techniques
Source-to-object distance (SFD/FFD); geometric unsharpness; SWSI (Single Wall Single Image); DWSI; DWDI techniques; ellipse technique; panoramic shooting; pipe-in-pipe techniques
✅ Module 8 — Radiography of Welds
Weld types and joint configurations; technique selection per ASME V, AWS D1.1, EN ISO 17636-1/-2; film coverage and overlap; shot setup for butt welds, branch connections, fillet welds
✅ Module 9 — Radiography of Castings
Casting defect types; ASTM E446, E186, E280 reference radiographs; technique selection for varying section thicknesses
✅ Module 10 — Safety Rules & Emergency Procedures
Source storage, transport, and handling rules;
emergency procedure for stuck source; exclusion zone marking; AERB notification requirements
RT Level II — Advanced Theory & Assessment Modules
✅ Module 11 — Review of Level I Subjects
Quick revision of radiation physics, film processing, safety
✅ Module 12 — Advanced Techniques & Non-Conventional Radiography. Tangential technique; in-motion radiography; stereoradiography;
micro-focus radiography; real-time radiography; Computed Radiography (CR) and Digital Detector Arrays (DDA)
✅ Module 13 — Codes, Standards & Acceptance Criteria
ASME Section V (Article 2 — RT); ASME VIII (acceptance criteria); AWS D1.1 (structural welds); API 1104 (pipeline welds); EN ISO 17636-1 (film) and 17636-2 (digital);
IS 1182 (Indian standard for RT of welds);
ASTM E94, E1316, E1441 (film radiography)
✅ Module 14 — Film Interpretation & Evaluation
Systematic film reading procedure; density measurement; relevant vs non-relevant vs false indications; weld discontinuities — porosity, slag, cracks, lack of fusion, incomplete penetration, burn-through, undercut (RT appearance); casting defects — shrinkage, porosity, inclusions, cold shuts
✅ Module 15 — Report Writing & Documentation
Radiographic procedure writing per SNT-TC-1A;
test report format and mandatory fields; accept/reject/rework classifications; radiograph identification and archiving requirements
✅ Module 16 — RT Procedure Development Exposure calculation (Ir-192, X-ray); technique sheets; procedure qualification; sensitivity verification
✅ Module 17 — Supervision of Level I Operations
Written instructions for Level I; checking and countersigning; Level I reports; equipment maintenance responsibilities
RT Level I — Theory & Practical Modules
- 🔬 Practical 1 — X-Ray setup and exposure on weld specimens in the NABL-accredited X-ray enclosure
- ☢️ Practical 2 — Gamma Ray exposure using Iridium-192 (Ir-192) source on pipe weld specimens
- 🎞️ Practical 3 — Manual film processing in darkroom — developer, stop bath, fixer, wash, dry
- 📐 Practical 4 — IQI placement and sensitivity verification on actual production radiographs
- 🔍 Practical 5 — Film interpretation: weld discontinuities (porosity, slag, cracks, LF, IP) on 50+ reference films
- 🔍 Practical 6 — Film interpretation: casting defects on ASTM E446 and E186 reference radiographs
- 💻 Practical 7 — Introduction to Computed Radiography (CR) — digital image reading and processing
- 📄 Practical 8 — Report writing: complete RT test report for accept/reject/rework classification
- 📝 Practical 9 — Mock examination under exam conditions (full-length written + practical)
Who Can Enrol — Eligibility Requirements
| Criterion | RT Level I (SNT-TC-1A) |
RT Level II (SNT-TC-1A) |
RT Level II (ISO 9712) |
|---|---|---|---|
| Minimum Education | 10th Standard | 10th Standard with experience or Diploma/Graduate in Engineering | Per ISO 9712 Annex A |
| Work Experience Required | 210 Hours | 630 Hours | Per ISO 9712 Annex A (product-form specific) |
| Vision Requirement | Near vision (Jaeger J1) + Colour vision | Near vision + Colour vision | Per ISO 9712 Clause 6 |
| Pre-requisite Course | None | None (combined Level I+II batch) | None for direct Level II entry |
| AERB RSO Course | Required separately to operate radiation sources | Required separately to operate sources | Not part of ISO 9712 scope |
| Best Suited For | Freshers, QC trainees, welders seeking RT exposure | QC Engineers, NDT inspectors, RT technicians | Engineers needing internationally recognised third-party certification |
📌 Important (India-specific): Under AERB (Atomic Energy Regulatory Board) rules, operating a radioactive source (X-ray / Gamma Ray camera) in India requires a separate Radiation Safety Course from BARC/AERB. This is mandatory for Industrial Radiographers operating in India and is separate from the NDT Level I/II certification. Our trainers can guide you on AERB registration. Contact: training@trinityndt.com | +91 98441 29439
RT vs RTFI — Which Course Do You Need?
Many candidates confuse RT (Radiographic Testing) and RTFI (Radiographic Film Interpretation). They are different certification tracks serving different job roles. Choose the right one for your career:
RT Level I & II — For Industrial Radiographers
This course is for professionals who set up, expose, and process radiographic films using X-ray or Gamma Ray equipment.
You need RT Level I/II if:
✅ You operate X-ray machines or Gamma Ray cameras
✅ You set up shooting parameters, IQIs, and technique sheets
✅ You work for an NDT service company performing radiography at client sites
✅ You need to interpret films AND set up the equipment
✅ You work in oil & gas, petrochemical, piping, or pressure vessel fabrication
Important: To legally operate radioactive sources in India, you also need an AERB Radiation Safety Course separately from this RT certification.
RTFI Level II — For Film Interpreters & Quality Engineers
This course is for quality engineers and inspectors who interpret radiographic films but do NOT operate the radiation source themselves.
You need RTFI Level II if:
✅ Your company outsources radiography to a third party
✅ You review and approve radiographs submitted by radiographers
✅ You work as a QC/QA engineer in a welding fabrication or casting facility
✅ You need to evaluate weld or casting quality from radiographs
✅ You want film interpretation skills without radiation safety exposure
This is a shorter course than full RT Level II, focused entirely on interpretation, evaluation, and reporting.
Important Note - AERB/BARC Radiographer/RSO Certifications
☢️ AERB Radiation Safety — Important Information for Indian Radiographers
In India, operating any X-ray machine or radioactive source (Gamma Ray camera) for industrial radiography requires a separate Radiation Safety Course from AERB (Atomic Energy Regulatory Board) and BARC (Bhabha Atomic Research Centre), Mumbai. This is a legal requirement under the Atomic Energy (Radiation Protection) Rules, 2004.
- AERB Certificate is mandatory to be employed as a licensed Industrial Radiographer in India
- Trinity NDT's RT training covers radiation safety comprehensively to help candidates prepare for the AERB examination
- Our trainers are licensed Radiological Safety Officers (RSO) from AERB/BARC — they guide you through the regulatory pathway
- AERB/BARC courses are conducted separately by BARC, Mumbai — we assist with information and application guidance
- RSO courses are available for senior professionals who supervise radiographic operations
📞 For guidance on AERB registration and RSO courses, call: +91 98441 29439 | email: training@trinityndt.com
Which RT Certification Should You Choose? — ASNT vs ISO 9712
| Factor | ASNT SNT-TC-1A | ISO 9712 |
|---|---|---|
| Certification Type | Employer-based | Third-party independent |
| Best For | Indian industry: oil & gas, power, fabrication, railways, defence | Export companies, EU projects, IBR boilers, international clients |
| International Recognition | Americas, Middle East, India — widely accepted | Europe, UK, global via ISO framework — highest portability |
| Training Hours Required | 40 hours minimum (combined Level I+II) | Per ISO 25107 (product-form specific) |
| Relative Cost | Most affordable | Higher (third-party exam body fee) |
| Certificate Validity | Per employer written practice (3–5 years typical) | 5 years (renewable on evidence of practice) |
| Available at Trinity NDT | ✅ Online & Offline | ✅ Offline Only (RTFI track) |
Why Quality Engineers Across 42 Countries Choose Trinity NDT for RT Training
Live X-Ray Enclosure + Ir-192 Gamma Source
Practise actual industrial radiography on production-grade X-ray and gamma ray equipment. No simulator. No substitute. India's only training institute with both X-ray and active gamma source in one facility.
AERB Licensed RSO Trainers
All RT courses are taught by ASNT Level III certified professionals who are also licensed Radiological Safety Officers (RSO) from AERB/BARC, Mumbai — the highest radiation safety credential in India.
NABL Accredited RT Laboratory
Our radiography lab holds NABL ISO/IEC 17025:2017 accreditation (TC-5934). Every radiograph produced during training is made in a lab meeting the same quality standard as production inspection.
Hundreds of Reference Radiographs
Interpret real defect films from actual production jobs — porosity, slag, cracks, lack of fusion in welds; shrinkage and misruns in castings. Not textbook illustrations — actual production rejects.
ET Rise Top 10 MSME India 2021
Economic Times recognised Trinity NDT as India's 10th best-performing MSME in Industrial & Engineering Services. The only NDT training institute in India with this national recognition.
CR / Digital RT Exposure
Modern radiography is moving to Computed Radiography (CR) and Digital Detector Arrays (DDA). We introduce trainees to CR systems during practical sessions — preparing them for the future of the industry.
Upcoming RT Level I & II Training Batches — 2026
| Dates | Course | Scheme | Mode | Seats | Action |
|---|---|---|---|---|---|
| Contact for Dates | RT Level I & II | ASNT SNT-TC-1A | Offline — Bangalore | Open | Enquire |
| Monthly | RTFI Level II | ASNT SNT-TC-1A | Online — Live | Open | Enquire |
| Contact for Dates | ISO 9712 RTFI Level II | ISO 9712 | Offline — Bangalore | Limited | Enquire |
📅 Full yearly calendar: View Complete Training Schedule →
Frequently Asked Questions — RT Level I & II Certification Course
RT Level II is for professionals who both set up and operate X-ray/Gamma Ray equipment AND interpret radiographic films. RTFI (Radiographic Film Interpretation) Level II is for quality engineers who interpret radiographic films but do not operate the radiation source. In India, operating any radioactive source requires an additional AERB Radiation Safety Certificate. If you work in quality control and review films submitted by a third-party radiographer, the RTFI course is sufficient. If you operate the RT equipment yourself, you need the full RT Level I/II course plus the AERB safety qualification.
Yes. Under the Atomic Energy (Radiation Protection) Rules 2004, any person operating a radioactive source (X-ray machine or gamma ray camera) for industrial purposes in India must hold a valid Radiation Safety Certificate from AERB/BARC, Mumbai. This is separate from and in addition to your NDT Level I/II certification. Trinity NDT’s RT course comprehensively covers radiation safety to prepare you for the AERB examination. Our trainers are licensed Radiological Safety Officers (RSO) and can guide you through the AERB registration process.
At Trinity NDT’s NABL-accredited laboratory in Peenya, Bangalore, offline participants get hands-on practice with a dedicated X-ray enclosure (production-grade X-ray machine), an active Iridium-192 (Ir-192) Gamma Ray source on actual weld and casting specimens, manual film processing in a darkroom facility, high-intensity film illuminators for interpretation, and a Computed Radiography (CR) reader for digital image processing. You will also interpret from a curated collection of hundreds of real production radiographs showing actual weld and casting defects.
As per ASNT SNT-TC-1A (2024 edition) Table 6.3, the minimum recommended training hours for RT are: Level I — 40 hours; Level II direct — 80 hours (combined Level I + Level II). Trinity NDT’s offline RT programme covers the full minimum training hours requirement in an intensive structured course. For the ISO 9712 scheme, the training hours are as specified in ISO 25107 and depend on the chosen product form (welds, castings, etc.).
The RTFI (Radiographic Film Interpretation) Level II theory component is fully available in our online live-virtual format. However, the practical component — which requires actual X-ray and gamma ray exposure, film processing, and physical film interpretation — is only available in the offline (Bangalore in-person) mode. For candidates who complete the online RTFI theory course, a practical add-on session can be arranged at our Bangalore facility separately.
RT Level II is required in: oil & gas (petrochemical pipelines, refineries, offshore platforms); power generation (boilers, pressure vessels, steam piping — IBR compliance); shipbuilding and marine; aerospace and defence (HAL, ISRO, DRDO); pressure vessel and heat exchanger manufacturing (ASME VIII compliance); structural steel fabrication; railways (bogies, wheels, rails); nuclear power (AEC/AERB requirements); automotive (castings for critical safety components). In India, RT is the most widely contracted NDT method for IBR compliance, making RT Level II one of the highest-demand NDT certifications in the job market.
Three ways: (1) WhatsApp +91 98441 29439 — send your name, preferred scheme (SNT-TC-1A / ISO 9712), mode (online/offline), and preferred month; (2) Online registration form at trinityndt.com/training-register/; (3) Email training@trinityndt.com. Our training coordinator confirms your seat, sends fee details, and dispatches pre-study materials within 24 hours.
What Our RT Level I/II Course Participants Say
What Our RT Level I/II Course Participants Say
X-Ray Enclosure + Ir-192 Gamma Source + NABL Lab + AERB Licensed RSO Trainers
Limited seats per batch — don’t miss the next schedule.
Our training coordinator responds within 2 hours on all working days.
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