• Sigma Inspection & Testing Pvt. Ltd.
  • Call : +91 79 2284 1537


Who We Are

SITPLSigma Inspection & Testing Pvt Ltd

SITPL (popularly known as Sigma NDT Lab) was established in year 2009, with an aim to provide array of quality NDT services at most economical rates, to meet growing needs of Foundries and Fabricators, by a young, energetic and brave science graduate, specially qualified and multi disciplinary senior most RSO cum Entrepreneur Mr. Gautam K. Patel along with the support of his family.

SITPL is a full flagged quality & customer oriented and NABL Accredited (ISO/IEC 17025:2017) NDT Lab since inception. It is built on a plot measuring ~700 sq. mtr. and situated in Naroda GIDC, Ahmedabad, Gujarat. Name Sigma firmly stands for “measurement of variability / Standard deviation” in performing NDT procedures to meet stringent quality requirements of our valued Customers.

Secret of high satisfaction of our valued customers lies on the moral bindings of SITPL’s prudent management.

what we do?

Get Quality NDT Services

Sigma NDT Lab wholeheartedly offers array of NDT services like RT, UT, MPT, LPT and UTM. Using X-Rays, Gamma-Rays available from high quality sources like Ir-192 (up to 60 mm wall thickness) and CO-60 (up to 150 mm wall thickness) Isotopes as per ASTM and EN standards, at permanent lab. and also at local and outstation sites.

The NDT procedures are performed by well educated, trained, qualified (BARC Level-I and Level-II) and experienced radiographers who are supervised by competent BARC approved RSOs and have also earned high recognition from third party inspection agencies like TUV, LRIS, EIL, PDIL, BVQI.

10 +

Years Of Experience

50 +

Client Served

< 3 %

Reshoot Level

NDT Services Offered

SITPL has 10+ years of experience with providing array of quality NDT services listed below.


RT - Soft X-Rays - Radiography

Test items: Castings, forgings and Weldments
Thickness: < 12 mm
Application: Internal flaws in critical components used in Automobiles, Aerospace etc.


RT - Gamma Rays - Radiography

Test items: Castings, forgings and Weldments
Thickness: Up to 150 mm
Application: Surface defects and internal flaws such as cracks, blow holes etc.


UT - Ultrasonic

Test items: Alloy Steels, Castings (without Coarse Grain Material), Forgings and Weldments
Thickness: Penetrates up to full depth
Application: For depth and size of internal flaws


MPT - Magnetic Particle

Test items: Investment and Sand Castings and Weldments
Application: Surface and Sub Surface defects for ferrous material


LPT - Liquid Penetrant

Test items: Castings and Weldments
Application: To evaluate the Open surface defects such as porosity and fine cracks


UTM - Ultrasonic Thickness Measurement

Test items: Castings (without Coarse Grain Material) and Weldments
Application: For thickness Measurement

WhyChoose Us!

We demand and have been continuously experiencing value added services in terms of Ethics, Quality, Trustworthiness & Dedication.

High quality Films – Agfa / Carestreem

Imported Ir-192 & CO-60 Isotopes

BARC approved twin mega Enclosures

Darkroom functioning under controlled environment

Use of regularly Calibrated Instrument

Trained, Qualified and Experienced Radiographers

Comprehensive NDT Test Reports

Value added Radiographs

Most economical rates (value for money)

Smart Support Staff

On time delivery

Optimum Customer satisfaction through best Quality

Our Valued Clients

Secret of high satisfaction of our valued customers lies on the moral bindings of SITPL’s prudent management such as honesty, dedication, commitment, no compromise with any quality aspects of NDT procedures, perfect harmonizing with customer needs and  strictly observing all BARC applicable safety norms.

Get Solutions For

All NDT Services

We focus on the imperative needs of our customer. Added to our committed workforce, we are equipped with modern testing facilities and state-of-the-art technology.