Trinity NDT WeldSolutions Private Limited

NADCAP Aerospace Trinity NDT India

ASNT NDT Level III Consultancy Services. NDT Written Practice as per SNT TC 1A - 2024, Procedures preparation as per ASTM, ISO, BS/EN standards. NAS410, IWE, ASME U stamp Consulting in Bangalore.

NDT Procedure preparation Services. ASNT, ISO 9712, NAS410 Level III in 6 methods & iWE Consultants in Bangalore, India. 1500+ Customers.

Years of Service Excellence
25 +
Customers Pan India
1500 +
Countries Serving
45 +
Trained Professionals
18000 +
ASNT NDT Level III consultancy services - Reviewing a written NDT procedure at Trinity NDT, Bangalore

ASNT NDT Level III & NDT Consultancy Services in Bangalore

Trinity NDT WeldSolutions provides in-house ASNT NDT Level III consultancy services across six NDT methods, plus NAS 410 aerospace and IWE/IWT welding coordinator consulting, to companies across Bangalore, Hosur, Mysore and India. We prepare and approve written practices, NDT procedures and ASME U-stamp NDE documentation, and act as your outsourced Company NDT Level III where you do not have one in-house.

  • Since 2001, India's first company offering outsourced NDT Level III consulting, serving 1,500+ customers
  • ASNT NDT Level III in Ultrasonic, Radiography, Eddy Current, Magnetic Particle, Penetrant and Visual testing — all six conventional methods
  • NAS 410 Level III for aerospace, and IWE/IWT welding coordination for ISO 3834 and EN 15085
  • Backed by an NABL-accredited laboratory on the same campus, so procedures are validated against real equipment, not written in the abstract

Get a Quote on WhatsApp Call +91 98441 29439

On-site ASNT Level III consulting and NDE procedure preparation at a client workshop in Karnataka

What Is NDT and Welding Consulting?

NDT and welding consulting is the engagement of a qualified NDT Level III or International Welding Engineer (IWE) to identify a company's quality requirements, prepare and approve the written practice and NDT/welding procedures used in production, select suitable equipment and techniques, and take overall responsibility for the quality system as the designated Company Level III or welding coordinator.

Companies either employ an in-house Level III or IWE, or outsource the role to a consultant. Trinity NDT has provided outsourced NDT Level III consulting since 2001, acting as "Company NDT Level III" for clients who do not have one on staff.

Consulting services at a glance

ServiceWhat it coversTypical standards
Written practice developmentQualification and certification scheme for your NDT personnelSNT-TC-1A, ANSI/ASNT CP-189, NAS 410
NDT procedure preparation and approvalMethod-specific procedures for your products and materialsASTM, ASME V, ISO, EN standards
ASME U/U2 stamp NDE consultingNDE procedures and personnel qualification for pressure-vessel manufactureASME Section V, VIII
NAS 410 aerospace consultingWritten practice and procedures for NADCAP-accredited facilitiesNAS 410
IWE/IWT welding coordinationWPS/PQR development, welder certification, audit supportISO 3834, EN 15085, EN 1090
New facility setupFeasibility study, equipment selection, layout, commissioningCustomer and code requirements

Scope of work

  • Collecting the quality requirements of the client
  • Preparing NDT and welding procedures, reviewing and approving them
  • Auditing labs and welding shops
  • Preparing documentation for QMS audits, ISO 3834 and EN 15085
  • Training NDT and welding inspectors
  • Evaluating and maintaining certification records
  • Overseeing equipment calibration
  • Day-to-day responsibility for the quality system and its procedures

SNT-TC-1A, CP-189, ISO 9712 and NAS 410: Which Scheme Applies?

Companies most often ask us which certification scheme their written practice should follow. The answer depends on your industry, your customer's specification and whether your Level III needs to be independently examined.

SchemeTypeHow Level III is qualifiedWhere it is typically required
SNT-TC-1ARecommended practice (guideline), not a mandatory standardCertified in-house by the employer's written practice; certification does not transfer to another employerThe most widely used scheme across Indian and international manufacturing, by far
ANSI/ASNT CP-189ANSI-accredited national standard, not a guidelineLevel III must hold an ASNT-administered central certification in the method; requirements are fixed, with little room for company-specific modificationCustomer or contract specifications that demand stricter, third-party-verified Level III qualification — common in boiler and pressure-vessel work
ISO 9712International standard for personnel certificationCertified by an independent, accredited certification body, not the employerEuropean-linked contracts, EN 1090, EN 15085 and other ISO/EN-referencing specifications. See our ISO 9712 Level 3 consulting page
NAS 410Aerospace industry standardCertified to NAS 410 requirements, typically required for NADCAP-accredited facilitiesAerospace manufacturing and NADCAP-accredited NDT facilities

Our team holds ASNT Level III certification (meeting the CP-189 route where a customer requires it) across six methods, plus NAS 410 Level III, so we can write a written practice around whichever scheme your contract specifies. Ask which scheme fits your contract →

Written Practice Development for NDT Personnel

Personnel performing NDT must be certified under a documented scheme. Employers give responsibility for this to a Company NDT Level III, who prepares a written practice describing how personnel are trained, examined and certified.

What a written practice typically covers

  • The certification scheme followed (SNT-TC-1A or CP-189) and any customer-specific modifications
  • Qualification requirements for each level: education, training hours, experience and vision acuity
  • Examination requirements: general, specific and practical exams for each method and level
  • Certification, recertification and renewal periods, and grounds for suspension or revocation
  • The responsibilities of the Level III, Level II and Level I in the organisation

Our in-house ASNT Level III is certified in Ultrasonic, Radiography, Eddy Current, Magnetic Particle, Penetrant and Visual testing, and NAS 410 Level III certified in MPI and FPI, with 28+ years of industrial experience. We develop, review and approve NDT written practices to SNT-TC-1A or CP-189, and NAS 410 for aerospace, for clients across Bangalore, Hosur, Mysore and India. Contact us to discuss your written practice

Scope and duties of consultants

In general, NDT, welding consultants have below scope of work.

  • Collecting quality requirements of the client
  • Preparing NDE, welding procedures review, approval
  • Auditing Labs, Welding shops
  • Document preparation for QMS audits, ISO3834, EN15085
  • Training of NDT, Welding inspectors inspectors
  • Evaluation, maintaining records
  • Calibration of equipment
  • Looking after day to day functions
  • Overall, responsible for maintaining quality system, procedures.

Outsourcing NDT, Welding Consultants

If a company could not afford to have an in-house NDT, welding coordinator. They can outsource outside individuals. Trinity NDT is the first Indian company to provide consulting for clients since 2001. ASNT/NAS410 Level 3 consulting experts monitor day to day functions.
 
Employers designate them as ‘Company NDT Level 3’. They are the authorized professionals to look after overall activities. A professional ASNT NDT Level 3 consultant will be able to deliver the function as indicated in above scope. Hiring an NDT level 3 of required caliber is the employers responsibility. ASNT Level 3 in the method, is the prerequisite to be eligible to hire or employ as ‘Company NDT Level III’.
 
NDT Level III, will guide and support your organization in every activity happening. This gives adequate control on procedures.

NDT Procedure Preparation and Approval

Manufacturing companies need their own NDT procedures, written for their specific products, materials and applications rather than copied generically. Our ASNT Level III develops company-specific procedures for castings, forgings, plates and welds, to ASTM, ISO, BS and EN standards, then approves them as Company Level III. Clients review the approved procedure and may request changes before it is finalised.

What a procedure typically specifies

  • Scope: the material, product form and thickness range covered
  • Equipment, technique and essential variables for the method
  • Calibration and reference standards used
  • Acceptance criteria and how indications are evaluated
  • Personnel qualification required to perform the test

We provide this service to companies in and around Bangalore, Hosur and Mysore for the six conventional NDT methods (UT, RT, MT, PT, ET, VT), backed by our own NABL-accredited laboratory where a procedure needs to be trialled on real equipment before approval. Contact us with your specific needs

Ultrasonic testing procedure development on aluminium test blocks at Trinity NDT

ASME U Stamp NDE Level III Consulting

ASME is one of the most widely referenced codes in the NDT industry. The ASME U and U2 stamps allow pressure-vessel manufacturers to build to their own quality system audited against the ASME Boiler and Pressure Vessel Code. ASME Section V, Article 1 sets out the general requirements for NDE methods, including the requirement that personnel be qualified to a written practice meeting SNT-TC-1A or CP-189.

We provide ASME U and U2 stamp NDE Level III consulting in Bangalore: writing NDE procedures, establishing techniques, and training and certifying personnel as required by the ASME code, for pressure-vessel manufacturers preparing for or maintaining their U-stamp accreditation.

NAS 410 Level III Aerospace Consulting

Aerospace NDT facilities need personnel qualified to NAS 410, and NADCAP-accredited companies must maintain a NAS 410 Level III, either in-house or through an outside consultant, responsible for the overall functioning of the facility and for personnel qualification and training.

As an aerospace consultant, we establish labs, prepare written practice to the current revision of NAS 410, help clients set up facilities, and provide training and certification of NDT personnel to aerospace standards. Our aerospace division operates from our NADCAP-accredited facility in Peenya Industrial Area. NADCAP aerospace testing facility →

IWE/IWT Welding Coordinator Consulting

Welding is treated as a special process under ISO standards, so fabrication companies pursuing ISO 3834 or EN 15085 certification need a welding coordinator. Our IWE/IWT consultants work as your welding coordinator: establishing WPS documentation and supporting welder certification, and guiding you from documentation through to audit completion. We currently work with 150+ fabrication welding companies across India.

For full detail on our welding coordination and WPS/PQR consulting, see IWE Welding Engineering Services.

IWE Welding Engineer consulting services for ISO3824

Setting Up a New NDT Facility?

With in-house experienced ASNT Level III consultants, we help companies set up new NDT facilities end to end:

  • Study of testing methods and techniques suited to your product
  • Feasibility study
  • Equipment procurement guidance
  • Layout design for component inspection
  • Inspection and commissioning of machines
  • Calibration and maintenance planning

We can confidently provide ASNT Level III consulting across Radiography, Eddy Current, Magnetic Particle, Ultrasonic, Penetrant and Visual testing, and NAS 410 Level III consulting for aerospace Magnetic Particle Inspection (MPI) and Fluorescent Penetrant Inspection (FPI). Meet our ASNT Level III consultants →

How Our NDT Consulting Engagements Work

  1. Initial consultation — we discuss your product, applicable codes, customer specifications and current gaps
  2. Scoping — we confirm which certification scheme (SNT-TC-1A, CP-189, ISO 9712 or NAS 410) and which methods are in scope
  3. Document drafting — we prepare the written practice and/or NDT procedures
  4. Review and trial — where useful, procedures are trialled on our NABL-accredited lab equipment before approval
  5. Approval — our Company Level III formally approves the documents
  6. Client review — you review the approved documents and request any changes
  7. Ongoing support — we remain available for personnel certification, audits and periodic review as your Company Level III

What you receive

  • An approved written practice, referencing the certification scheme your contract requires
  • Approved, method-specific NDT procedures for your products
  • Personnel qualification and certification records
  • Ongoing Company Level III support for audits and customer queries

Send your requirement on WhatsApp and we will confirm scope and timeline. Get started on WhatsApp

Why Companies Choose Trinity NDT for Level III Consulting

  • All six conventional methods in-house. One ASNT Level III team for UT, RT, MT, PT, ET and VT, rather than piecing together several single-method consultants.
  • Backed by an accredited lab. Procedures can be validated against real NABL-accredited equipment on the same campus, not written in the abstract.
  • Aerospace and welding coverage too. NAS 410 Level III and IWE/IWT welding coordination sit alongside conventional NDT consulting, useful for companies that need both.
  • 25 years of experience since 2001, working with 150+ fabrication companies and 1,500+ customers overall.

How to choose an NDT Level III consultant: checklist

  1. Is the consultant's ASNT Level III certification current, and in which methods?
  2. Does the written practice follow the scheme your customer's contract actually requires — SNT-TC-1A, CP-189, ISO 9712 or NAS 410?
  3. Can the consultant validate a procedure against real equipment, or only write it on paper?
  4. Does the consultant cover every method your facility needs, or will you need several consultants?
  5. Will the consultant support you through customer audits, not just deliver a document?
  6. Can the consultant also cover aerospace (NAS 410) or welding coordination (IWE) if your scope grows?

Service Area and Related Services

We provide NDT and welding consulting to companies in Bangalore (Peenya, Bommasandra, Jigani and the Tumakuru Road corridor), Hosur, Mysore and across India, from our office in Peenya Industrial Area.

Related services

ISO 9712 Level 3 consulting · IWE welding engineering services · Welder qualification · NADCAP aerospace NDT · Free sample NDT procedures and report formats · NDT certification courses

Read more on ASNT Level III consulting at Ravi's Trinity NDT blog.

Frequently Asked Questions About NDT Level III Consulting

What does an ASNT NDT Level III consultant do?

An ASNT NDT Level III consultant identifies a company's NDT quality requirements, develops and approves the written practice for personnel certification, prepares and approves method-specific NDT procedures, selects suitable equipment and techniques, and takes overall responsibility for the NDT quality system as the designated Company Level III, whether employed in-house or engaged as an outside consultant.

What is the difference between SNT-TC-1A and ANSI/ASNT CP-189?

SNT-TC-1A is a recommended practice: the employer's Company Level III can certify personnel in-house, and that certification does not transfer to another employer. CP-189 is an ANSI-accredited national standard with fixed minimum requirements, and it requires the Level III to hold a central certification administered by ASNT itself. Customers who want stricter, third-party-verified Level III qualification often specify CP-189 in their contract.

Do I need a written practice for my NDT personnel?

Yes, if your company performs or subcontracts NDT under most industrial codes. A written practice documents how your NDT personnel are trained, examined, certified and recertified, following SNT-TC-1A, CP-189 or, for aerospace, NAS 410. It is normally prepared and approved by your Company NDT Level III, whether in-house or outsourced.

Can I outsource my Company NDT Level III instead of hiring one in-house?

Yes. Many companies cannot justify a full-time in-house Level III and outsource the role instead. The outsourced consultant must hold ASNT Level III certification in the relevant method and takes on the same responsibilities as an in-house Level III: written practice, procedure approval, training oversight and quality-system control. Trinity NDT has provided this service since 2001.

How is an NDT procedure different from a written practice?

A written practice governs how NDT personnel are qualified and certified. An NDT procedure is a separate, method-specific document describing how a particular test is performed on a particular product: the technique, equipment, calibration, essential variables and acceptance criteria. Both are normally prepared and approved by the same Company Level III, but they serve different purposes.

What does an NDT procedure need to include?

A typical NDT procedure specifies its scope (material, product form and thickness range covered), the equipment and technique used, essential variables, calibration and reference standards, acceptance criteria for evaluating indications, and the personnel qualification required to perform the test. Procedures are written to ASTM, ASME, ISO, BS or EN standards, or to a customer specification.

Which standard applies to my NDT procedure: ASTM, ASME, ISO or a customer specification?

It depends on your product, industry and customer's contract. Pressure-vessel and boiler work commonly follows ASME Section V; general industrial work often follows ASTM practices; European-linked contracts often specify ISO or EN standards. Where no standard is specified, we recommend one based on your product and confirm it with you before drafting the procedure.

Do you provide NDT procedure approval, or only preparation?

Both. Our in-house ASNT Level III can prepare a procedure from scratch, or review and approve a procedure you have already drafted. Where useful, we trial a procedure on our own NABL-accredited laboratory equipment before final approval, so it is validated against real equipment rather than written in the abstract.

What is ASME U stamp NDE Level III consulting?

The ASME U and U2 stamps allow pressure-vessel manufacturers to build to a quality system audited against the ASME Boiler and Pressure Vessel Code. ASME Section V, Article 1 requires NDE personnel to be qualified to a written practice meeting SNT-TC-1A or CP-189. We write the NDE procedures, establish techniques, and train and certify personnel to support U-stamp accreditation and audits.

What is NAS 410 Level III consulting?

NAS 410 is the aerospace industry standard for NDT personnel qualification. NADCAP-accredited aerospace facilities must maintain a NAS 410 Level III, in-house or outsourced, responsible for the facility's overall NDT function, written practice and personnel training. We provide this consulting from our NADCAP-accredited aerospace division in Bangalore.

Do you provide IWE or welding coordinator consulting?

Yes. Our IWE/IWT consultants act as your welding coordinator for ISO 3834 or EN 15085 certification, developing welding procedure specifications (WPS) and supporting welder certification, from initial documentation through to audit completion. For full detail on this service, see our IWE Welding Engineering Services page.

Can you help set up a new NDT facility?

Yes. Our in-house ASNT Level III consultants support new facility setup end to end: studying which testing methods and techniques suit your product, a feasibility study, guidance on equipment procurement, layout design for component inspection, machine commissioning, and calibration and maintenance planning.

Which NDT methods do you provide Level III consulting for?

We provide ASNT Level III consulting across all six conventional NDT methods: ultrasonic testing, radiography, eddy current testing, magnetic particle testing, penetrant testing and visual testing. We also provide NAS 410 Level III consulting for aerospace magnetic particle inspection (MPI) and fluorescent penetrant inspection (FPI).

How long does it take to develop a written practice or NDT procedure?

It depends on the scope: the number of methods, products and whether a new certification scheme is being introduced. A straightforward procedure for an existing method can often be drafted and approved within a few days; a full written practice covering multiple methods, or a new facility setup, takes longer. Contact us with your scope for a specific timeline.

Do you provide NDT consulting outside Bangalore?

Yes. We serve companies in Bangalore, Hosur, Mysore and across India. Written practice and procedure development can often be completed remotely once we understand your product and requirements, with site visits arranged for equipment reviews, audits or facility setup where needed.

What is the difference between ISO 9712 and NAS 410?

ISO 9712 is the general international standard for certifying NDT personnel, commonly required on European-linked contracts, EN 1090 and EN 15085 work, with certification issued by an independent accredited body rather than the employer. NAS 410 is specific to the aerospace industry and is typically required for NADCAP-accredited facilities. We provide consulting for both; see our dedicated ISO 9712 Level 3 consulting page for more detail.

Will my customer accept a procedure approved by an outsourced Level III?

In most industries, yes, provided the Level III holds current certification in the relevant method and the written practice states that outsourced or third-party Level III approval is acceptable. Some customer specifications require the Level III to be a direct employee; check your specific contract, and we can advise whether outsourcing is appropriate for your situation.

Do you help with personnel certification as well as procedures?

Yes. As Company Level III, we oversee training, examination and certification of your NDT personnel according to the written practice, maintain certification records, and can provide the training itself through our NDT certification courses, alongside procedure preparation and approval.

Talk to an ASNT Level III Consultant

Tell us your product, applicable codes and current gap, and we will confirm scope and timeline.

WhatsApp: +91 98441 29439 Call +91 98441 29439 info@trinityndt.com

Trinity NDT WeldSolutions Private Limited
491, Site No. 12, 14th Cross, 4th Phase, Peenya Industrial Area, Bangalore 560058, Karnataka, India

Written and reviewed by Ravi Kumar Thammana, CEO and Co-Founder, Trinity NDT WeldSolutions Pvt. Ltd. (ASNT NDT Level III & ISO 9712 Level III in six NDT methods, International Welding Engineer). Last reviewed: 24 September 2026. Standards references are checked against ASNT, ASME and industry publications. Always confirm the edition your contract requires.

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