Design Proof Test (Burst Test)

Burst Test as per ASME B16.9, MSS SP 97 and any other standard 

Subodh Material Technologists (an NABL Accredited Lab) has introduced the Design Proof Test (often referred to as ‘Burst test’) as per ASME B16.9 & MSS SP 97

Before Burst Test

During Burst Test

After Burst Test

18 inch Spool prepared at Subodh Rabale Mumbai for Burst / Design Proof Test

Design Proof Test:


To qualify the design of the pipe fitting & ensure that design meets the standard & code requirements, various tests including burst test are conducted.


In this test, a pipe & fittings are welded and a dummy pipe spool is prepared. This pipe spool is then pressurized to pre-defined calculated design proof test pressure. 


If the fittings withstand the test, all future product manufactured using that design will be considered safe to use.


Also with safety being paramount during these critical and dangerous tests, Subodh Material Technologists ensures that all tests are carried out in a SAFE manner.

New Requirement as per Code for SS fittings:

Under the latest and revised requirements of the Standard (ASME B16.9 – 2018) materials are now divided into groups, thereby mandating Design Proof Tests to be carried out separately for Carbon Steel and Stainless Steel Fittings.

We at Subodh Technologists aim to provide a ONE STOP SHOP Solution for your Design Proof Test requirements.


How Can We Provide End To End Solutions for complying with above:

1>Recommendation on optimum size to be tested which ensures maximum coverage of Diameter Range, Thickness Range and Material Range.

2>Preparation of Spool by welding done by our Expert Welder, with utmost precision at lab. 

3>Lab Testing (Chemical and Mechanical as per Specification) of the TEST FITTING.

4>Hydro Testing as per calculations.

5>Guaranteed Design, Pressure, Diameter and Thickness Calculations on Reports on our Laboratory Letter Head.

6>Services of an Independent Third-Party Professional-Mr. Dominic Savio Braganza who has

 - Certified over 60 Design Proof Tests (in ASME B16.9 and MSS SP 97), for Pipe Fitting manufacturers in Mumbai and Gujarat.

 - Reports accepted by EIL, RIL, all National and International Clients. 

About Subodh MATERIAL Technologists PRIVATE LIMITED:

Subodh Material Technologists is a leading Metallurgical and Corrosion Testing Laboratory accredited by NABL in India. For over 20+ years, we have provided clients with Technical Services to meet a wide variety of materials challenges and testing requirements. We have a full complement of resources available to deliver the help you need. Over the last few years, the company has grown to be a leading metallurgical testing laboratory in India. 

Constantly expanding our scope of activities and following best industry practices has given us a huge customer base all over India.

 Accredited by NABL (National Accreditation Board for Testing and Calibration Laboratories), Government of India as per ISO IEC 17025:2017 and with CRISIL 'SE2A' Rating, we're proud to deliver quality testing services that run the gamut of materials analysis from Mechanical testing to Corrosion environment simulation. 

Active partnerships and involvement with customers and TPI's keeps us at the forefront of emerging Testing Technologies and Trends.

The material testing facilities are frequently used by National as well as International agencies. The laboratory employs Qualified Metallurgists, Engineers & Chemists. It is on the approved list of various Inspection Agencies, Third Parties and Classification societies. In its endeavour to provide quality service to its customers the lab is constantly upgraded with the latest and the finest machinery /equipment in material testing.

The laboratory maintains a fully equipped workshop for machining and specimen preparation which can cater to huge volumes of testing work

Major Service Areas: Mechanical Testing, Corrosion Analysis, Chemical Testing, Metallography, Failure Analysis, Material Characterization



Address: Subodh Material Technologists, R-968 Rabale M.I.D.C., Navi Mumbai, India-400701

Google Maps Location:

About the Independent Third-Party Professional - Mr. Dominic Savio Braganza


-Trainer, Mentor, Supervisor to all levels (Surveyors, Managers, Workers, Engineers, Top Management) with 

  over 250 Man days of trainings imparted on ISO, Audits, Inspections and Technical

-Worked across various Departments (i.e. Inspection, Production, Quality, Projects, Expediting, 

  Management, etc)

-Worked across variousManufacturing Units (Fittings, Flanges, Valves, Instrumentation, Fabrication,  

  Pressure Vessels) and Laboratories (NABL Accredited)




- A Lead Auditor for ISO 9001

- An Internal Auditor for ISO 17020, ISO 17025, ISM

- Instrumental in successful ‘U’, ‘R’ and ‘NB’ Stamp Assessments / Audits under ASME.

- Instrumental in successful ISO Assessments / Audits (NABL, NABCB, BSI, TUV, ICS)

- Instrumental in successful Shop Approval Assessments / Audits (NPCIL, BARC, IBR, EIL, ONGC, TEIL, etc)

- Management Representative for ISO 9001, ISO 14001, OHSAS 18001, ISO 17020, ISO 17025, ISM

- Devised and implemented Quality Manuals (ISO 9001, ISO 17020, ISO 17025), Quality Alerts, Knowledge  

   Exchange / Sharing Programs

- Successfully completed Internal Audits, wherein the subsequent external audits (NABCB, NABL, BSI) have  

  raised NIL NCs.

- Over 150 Man days of Internal / Second Party Assessments / Audits conducted



- A BE Mechanical Engineering Graduate with First Class from Mumbai University

- A qualified NDT Level II (in UT, RT, PT, MT, UTTG)

- Having over 20 years of rich experience(of which over 10 years were with reputed Third Party Inspection

  Agencies – Bureau Veritas [BVIL], ApplusVelosi [AV], Tata Projects Limited [TPL] and Lloyds Register Asia 


- Quality Assurance & Welding Manager for ‘U’, ‘R’ and ‘NB’ stamp coded pressure vessel division

- Approved Surveyor for Clients like NPCIL, IGCAR, BHEL, RIL,etc

- Handled critical WPS, PQR and WPQ approvals



- Certified over 60 Design Proof Tests (in ASME B16.9 and MSS SP 97), for Pipe Fitting manufacturers in 

   Mumbai and Gujarat.

- Reports accepted by EIL, RIL, all National and International Clients. 


Currently providing Training, Technical Support, Consultancy, Audits / Assessments, Freelancing for Inspections for various Clients / Customers in the field of Mechanical Products and ISO.