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ndt / pcn-ndt / civil / cswip / aws / api / bgas / rope access / mep / hvac / safety / nebosh / six sigma / ISO auditor training institute in chennai, trichy, coimbatore, mumbai, bangalore, vizag, hyderabad, cochin

Certification according to EN 473:2008 and/or ISO 9712:2005, awarded before publication of EN ISO 9712:2012, remains valid until the next mandatory step in the certification process, i.e. renewal or recertification, which shall be carried out according to this International Standard.

Certification according to this International Standard is considered as fulfilling the requirements of both EN 473:2008 and ISO 9712:2005; consequently, any requirement for certification to either of these standards is fulfilled by a certification according to this International Standard.

Testing Methods


eddy current, liquid penetrant, magnetic particle, radiographic and ultrasonic testing of aerospace materials, components and structures


radiographic and ultrasonic testing of light and dense metal castings


radiographic, ultrasonic (including time-of-flight diffraction techniques) and electromagnetic testing of light and dense metal welds


eddy current and ultrasonic testing of wrought products

General Products

ultrasonic thickness measurement, liquid penetrant testing, magnetic particle testing and visual testing of general engineering products (multi-sector, including castings, welds and wrought products), and radiation safety certification


liquid penetrant testing, magnetic particle testing and ultrasonic testing of rail and ultrasonic testing of railway axles; liquid penetrant and magnetic particle testing of general railway products (multi-sector, including castings and wrought products)

Tubes & Pipes

liquid penetrant testing, magnetic particle testing eddy current testing and ultrasonic testing of tubes and pipes (including flat products for tube fabrication) for pressure purposes

The above accreditation covers certification according to EN ISO 9712  Non-destructive Testing. Qualification and certification of NDT personnel. The aim of the PCN Scheme is also to provide employers with assurance that the qualification criteria of 2nd party certification standards, such as EN 4179, ISO 11484 and NAS-410, are also satisfied.



C --- Castings

F --- Forgings & Wrought Products

W --- Weldments

B --- Tubes & Pipes

CODE --- SECTORS (Industry)

A --- Aerospace

G --- Pre and in-service inspection

H --- Railway

CODE NDT Methods

E --- Electromagnetic Testing

E1 --- Eddy Current

E2 --- ACFM

M --- Magnetic Particle Testing

P --- Liquid Penetrant Testing

R --- Radiography

U --- Ultrasonic Testing

V --- Visual Testing

CODE Scope of competence

H1 --- Railway Axles

H2 --- Rail (Refer to PCN/GEN Appendix F2.1 for detailed key to codes)

I --- Radiographic interpreter

S --- Radiation Protection

T --- Basic Radiation Safety

X --- X-Rays

Y --- Gamma Rays

e --- Dye Penetrants

f --- Fluorescent Penetrants

g --- Fixed Installations

h --- Portable Equipment

j --- Composite Materials

k --- Materials & Components

m --- Structures

n --- Light Metals

o --- Dense Metals

p --- Plates

q --- Bars & Billets

s --- Forgings

t --- Condenser Tubes

v --- NDT Instruction Writing

w --- Critical defect Sizing

x --- Single Frequency

y   --- Multiple Frequency

3.1 --- Butt Welds in Plate

3.2 --- Butt Welds in Pipe

3.7 --- ‘T’ Joint Welds

3.8 --- Nozzle Welds

3.9 --- Node Weld

About Us

PCN AND ASNT TRAINING IN CHENNAI is built on strong material Testing & Non - Destructive Testing expertise, founded in 2004 by group of professionals to serve the industry. Metal Testing Lab was awarded

ISO 17025 -2005 NABL Accredited Certification laboratory (Dept. of Science and Technology, Government of India) ISO 9001 - 2008 Quality Management System Certification services among few of the Metallurgical lab & NDT Services in India.

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Contact Us

No.5, Boopathy Street,
Virugambakkam Bus Stop opposite
Chennai - 600 092.
Tamil Nadu, India.
Tel: 044 - 42047244,
044 - 42077677
Cell : 093810 48884, 9382588890
Email: twggroupchennai@gmail.com