Positive Material Identification - PMI Services in Bangalore, Mysore & Hosur
Fastest PMI Services. ISO17025 Accredited Lab. In-Lab, Onsite test Facility Across India.
Experts in Material Sorting, Gold Silver Lead Purity Check. Chemical Analysis using XRF.
Positive Material Identification PMI Testing Services in Bangalore. In-Lab, Onsite XRF facility Across India. ISO17025 Accredited Aerospace Labs.
At Trinity NDT, we understand how critical is the chemical composition of materials before they are used for production. Especially in manufacturing of components for automobile, aerospace, oil and gas, fabrication, energy sector, it is crucial to use PMI as a quality control tool. Our Positive Material Identification(PMI) services in Bangalore are designed to provide, fast, accurate using non-destructive (NDT) testing techniques. We use cutting edge latest technologies such as x-ray fluorescence (XRF) and Laser Induced Breakdown Spectroscopy (LIBS).
We provide PMI services for material sorting, verification of grades of steel, aluminium, titanium, magnesium alloys. Also our PMI equipment can perfectly analyse purity of Copper, Gold, Silver bangles, other ornaments, platinum and medals awarded by universities across India. Approved source for gold purity testing for jewellery manufacturers. Supports to ensure quality of gold, silver on premium women sarees.
PMI testing available at our labs located at Peenya Industrial Area, Bangalore and onsite at customer locations across India. Offers fast turnaround time for onsite works.
If you are looking for PMI services in Bangalore to analyse for chemistry, contact us today. We serve over 1500+ customers across India. Experience our reliable, expert in-lab and onsite services. WhatsApp your request for a quotation or price for the service today.
Positive Material Identification (PMI) Testing Services in Bangalore | NDT Lab
Why Choose Trinity NDT for PMI Testing in Bangalore & Across India?
With over 20 years of expertise in positive material identification (PMI) testing, Trinity NDT delivers accurate, reliable material verification for aerospace, automotive, oil & gas, boiler, and engineering industries. Our ISO 17025 laboratory in Peenya, Bangalore serves 1500+ customers across India with same-day PMI reports and PAN India onsite services.
Onsite Quick PMI Testing in India | Same-Day Results | Onsite Anywhere in India | WhatsApp Quote in 5 Minutes
Comprehensive PMI Testing Services – In-House & Onsite
Our certified NDT professionals use portable XRF analyzers and mobile OES instruments to perform PMI testing at your facility or in our state-of-the-art lab. No matter the location—Bangalore, Hosur, Mysore, Tumkur, Bommasandra, Dabaspet, or remote sites across India—our experts travel with fully portable equipment to deliver results within hours.
Onsite PMI Testing
- Anywhere in India – 24-48 hour response
- Remote Sites – Offshore, hilly areas, factories
- No Shutdown Required – Test during operations
- Same-Day Reporting – Digital reports instantly
Lab PMI Testing
- ISO 17025 certified results
- High-Volume Testing – 1000+ samples/month
- Advanced Equipment – XRF + OES combined
- Traceable Calibration – NIST standards
PMI Testing for All Engineering Materials – 99.9% Accuracy
We analyze chemical composition of virtually every industrial material using ASTM E1476 and international standards. Our XRF & OES technology identifies alloy grades, detects mix-ups, and verifies material certificates within minutes.
Stainless Steels
304, 316, 304L, 316L, Duplex, Super Duplex
Carbon & Low Alloy Steels
SA 516 Gr.70, SA 106, P11, P22, P91
Nickel Alloys
Inconel 600/625/718, Hastelloy C276, Monel
Light Metals
Titanium, Aluminum 6061/7075, Magnesium
Common Applications: Pressure Vessels, Piping Systems, Weld Joints, Aerospace Components, Boiler Tubes, Heat Exchangers
PMI Testing Services for India's Top Industries
- Oil & Gas – Refineries, Pipelines, FPSO
- Power Plants – Boilers, Turbines, Valves
- Aerospace – Aircraft Parts, Engines
- Automotive – Chassis, Engine Blocks
- Heavy Engineering – Forgings, Castings
- Petrochemical – Reactors, Columns
- Railways – Bogies, Axles
- Infrastructure – Structural Steel
20+ Years of PMI Testing Excellence – Certified & Trusted
ISO 17025 Accredited Laboratory
30+ Years Combined Team Experience
ASNT Level III Expert Supervision
ASTM E1476 Compliant
1500+ Happy Customers
Zero Material Mix-up Incidents
Our NDT professionals average 30+ years of experience in material verification. With ASNT Level III oversight, every PMI test follows strict quality protocols ensuring 100% traceability from sample to report.
Fast PMI Testing Across South India
Located in Peenya 4th Phase, Bangalore, we reach ALL major industrial areas within 2-4 hours:
- Karnataka: Bangalore - 2 hrs (Peenya, Dabaspet, Bommasandra, Whitefield, Electronic City), Mysore & Tumkur (3 hrs), Mangalore, Belgaum, Shivamogga & Bellary - 1 day lead time for service*
- Andhra Pradesh: Visakhapatnam, Vijayawada, Tirupati, Kadapa — onsite PMI testing available, 24-48 hr response
- Telangana: Hyderabad, Warangal, Nizamabad — onsite PMI testing available, 24-48 hr response
- Tamilnadu: Chennai, Coimbatore, Salem, Madurai, Tiruchirappalli — onsite PMI testing available, 24-48 hr response
- Serves PAN India: Pune, Nagpur, Mumbai, Delhi, Ahmedabad, Jaipur, Bhilai, Indore, Patna, Bhubaneswar, Kolkata – 48-72 hrs*
The Hidden Dangers of Material Mix-ups – Why PMI Testing Saves Lives
Real Case Study: In 2023, a Bangalore refinery faced a ₹5 crore shutdown due to SS304 pipes supplied as SS316. Our PMI testing caught the mix-up before installation, saving the project and preventing potential catastrophic failure.
Common Issues We Detect:
- SS304 supplied as SS316 (corrosion risk)
- Carbon Steel as Stainless (strength failure)
- Low Alloy as High Alloy (high-temp failure)
- Aluminum Grade Mix-ups (aerospace safety)
Get Your PMI Testing Quote in 5 Minutes
Same-Day Results | Onsite Anywhere | ISO17025 Certified Reports
WhatsApp Now: +91 9844129439 | Call: 080-41205245
Serving Bangalore, Hosur, Mysore & 1500+ Clients PAN India Since 2001
FREE DOWNLOADS – PMI Testing Resources
Free PMI Testing Procedure (ASTM E1476)
NABL Certificate & Scope
PMI Consulting Services
Why 1500+ Companies Trust Trinity NDT for PMI Testing
20+ Years Experience | 100% On-Time Delivery | Zero Errors
ISO17025 Accredited | ASNT Level III Experts | PAN India Coverage
What can We do through PMI Testing?
PMI Testing Applications Across Industries
Our Positive Material Identification (PMI) testing services ensure material compliance at every stage of your project. From incoming raw materials to final commissioning, we verify chemical composition using portable XRF technology to prevent costly mix-ups and ensure code compliance.
Incoming Material Grade Verification
Verify alloy grades of raw materials before fabrication. Detect SS304 vs SS316 mix-ups. Ensure compliance with material certificates and purchase specifications.
Weld Joint Chemistry Confirmation
Confirm base metal and filler material chemistry. Prevent weld failures due to incompatible alloys. Essential for pressure piping and structural welding per ASME codes.
Pressure Vessel Composition Inspection
Verify material composition per ASME Section II and code requirements. Ensure shell, head, and nozzle materials meet design specifications before hydrotesting.
Pipeline & Refinery Equipment Testing
Onsite PMI testing for pipelines, valves, flanges, and fittings. Verify P11/P22/P91 grades in refineries. Support shutdown and turnaround inspections.
Manufacturing Mix-up Sorting
Sort mixed alloy batches using chemical analysis. Identify and segregate materials in fabrication shops. Prevent wrong material usage in production lines.
QA/QC During Construction & Shutdowns
Third-party PMI verification during plant construction. Audit material compliance during shutdowns. Support TPI agencies for export projects and OEM supplies.
Key Benefits of Our PMI Services
- 99.9% Accuracy – XRF technology with 500+ alloy library
- Same-Day Results – Digital reports within hours
- Non-Destructive – No material damage or preparation
- PAN India Coverage – Onsite testing anywhere
- ISO Certified – ISO 17025 accredited results
- Code Compliant – ASME, API, ASTM E1476 standards
Industries We Serve
- Oil & Gas Refineries and Pipelines
- Power Plants – Boilers and Turbines
- Aerospace Component Manufacturing
- Heavy Engineering Fabrication
- Petrochemical Processing Plants
- Construction & Infrastructure Projects
Real Results: In 2023, our PMI testing identified ₹5 crore worth of material mix-ups at a Bangalore refinery BEFORE installation, preventing shutdown and ensuring safety compliance.
Start Your PMI Testing Project Today
Onsite PMI Testing Available Across India | Same-Day Reports | ISO17025 Certified
Unique & Unconventional PMI Testing Applications at Trinity NDT Labs in Bangalore
PMI Testing of Wall Painting for Metal Purity
At Trinity NDT, we recently carried out Positive Material Identification (PMI) testing on a wall painting to verify the actual metal content used in its pigments and decorative elements. Using handheld XRF (X-Ray Fluorescence) analysers, our ASNT Level III certified technicians identified the exact alloy composition non-destructively, without damaging the artwork in any way.
This kind of PMI testing is increasingly sought after by art collectors, galleries, insurers, and restoration experts who need documented proof of metal authenticity before a purchase, valuation, or insurance claim.
If you own a painting with metallic elements and want lab-verified purity certification, Trinity NDT’s Bangalore facility offers fast, accurate, and non-invasive PMI testing for art and decorative metalwork.
Sarees with Zari (Gold Thread) for Purity Verification Using PMI XRF Test
Many premium Indian sarees are woven with real gold or silver zari threads, and unfortunately, buyers are often misled about the actual purity of this metal content.
At Trinity NDT, we perform PMI testing on saree zari threads using precision XRF analysis to confirm whether the metal used genuinely matches what sellers claim — whether it’s pure gold, gold-plated, or an alloy substitute.
This test protects customers from being overcharged for sarees marketed as “real zari” or “gold thread” when the actual content may be significantly lower.
If you’re a saree buyer, boutique owner, or textile trader in Bangalore looking to verify zari purity before a big purchase, our ISO17025-accredited lab provides quick, reliable, and legally defensible PMI test reports.
Gold Jewellery — Rings, Bangles, Bracelets, and Chains Using PMI
Gold jewellery purity fraud is a common concern, and PMI testing offers a scientific, non-destructive way to verify exactly what you’re buying or selling. At Trinity NDT, we’ve tested a range of jewellery pieces — rings, bangles, bracelets, and chains — using XRF-based PMI analysis to determine precise gold karat value and detect any base metal adulteration, without melting or damaging the piece.
This service is ideal for individual buyers verifying a big-ticket purchase, jewellers wanting third-party quality assurance, pawnbrokers, and even family heirloom owners settling inheritance disputes.
Get your gold jewellery tested at our Bangalore lab and walk away with a certified, accurate purity report you can trust.
Grade Testing of Antique Idols and Precious Religious Objects
Antique idols of Hindu deities and other heritage objects often carry historical and material value tied directly to the metals used in their casting — bronze, brass, silver, or gold alloys.
At Trinity NDT, we’ve performed PMI testing on such precious antiques to determine their exact chemical composition, helping collectors, temples, museums, and auction houses authenticate age, origin, and metal purity without any damage to the artifact.
This kind of testing is especially valuable before high-value antique purchases, insurance documentation, or export/import compliance for cultural artifacts.
If you own or deal in antique metal idols and need expert material verification, our ISO17025 accredited NDT lab in Bangalore can help you get certified answers.
PMI Testing of Mughal-Era Silver, Gold Alloys Coins for Purity Verification
At Trinity NDT, we recently performed Positive Material Identification (PMI) testing on a collection of silver, gold alloy coins believed to date back to the Mughal era, to verify their purity and identify the elemental composition of the alloy.
Using handheld XRF (X-Ray Fluorescence) analysers, our ASNT Level III certified technicians determined the exact silver content — along with traces of copper and other metals typical of historical minting practices — without melting, cutting, or otherwise damaging a single coin.
This kind of testing is increasingly sought after by numismatists, coin collectors, auction houses, and heritage institutions who need documented,
lab-backed proof of a coin’s metal purity and authenticity before a sale, valuation, insurance claim, or export/import compliance check.
If you own historical coins or currency and want certified, non-destructive purity verification, Trinity NDT’s Bangalore laboratory offers fast, accurate PMI testing for numismatic items — with the same rigour we apply to aerospace and industrial materials.
Metallic Holy Quran for Metal Chemical Composition Verification
We recently performed PMI testing on a metallic Quran to determine the exact composition of metals used in its construction — a unique and highly specialized application of material testing technology.
Using non-destructive XRF analysis, our team was able to accurately identify the alloy content without affecting the religious or artistic integrity of the piece. This type of testing is valuable for collectors, religious institutions, and custodians of rare metallic manuscripts who want documented proof of material authenticity for valuation, preservation, or insurance purposes.
Trinity NDT’s Bangalore laboratory is equipped to handle such delicate and unconventional PMI testing requirements with the utmost care and precision.
What Is Positive Material Identification?
Traditional material chemistry verification methods like Optical Emission Spectrometry (OES) rely on destructive testing that requires removing material samples. These samples cannot be reused or returned to stock, resulting in material waste, higher costs, and extended testing timelines.
Limitations of Laboratory-Based Chemical Analysis:
- Large, stationary equipment unsuitable for onsite testing
- Requires controlled laboratory conditions
- Time-intensive sample preparation processes
- High per-sample testing costs
- Cannot be applied to production line materials
- Results delayed by laboratory processing time
PMI Testing: The Non-Destructive Alternative
Positive Material Identification (PMI) testing offers a superior solution for material chemistry verification without material damage or removal. Our portable PMI analyzers provide immediate, accurate chemistry results directly on your production floor, warehouse, or field location.
Benefits of PMI Testing:
✓ Non-destructive – No material removal or damage
✓ Portable – Onsite testing anywhere
✓ Fast – Results in seconds, not days
✓ Cost-effective – Eliminates sample preparation and lab fees
✓ Production-friendly – Test materials during manufacturing
✓ Versatile – Works on finished goods, raw materials, and components
In-Line Quality Control Solutions
For continuous production monitoring, electromagnetic testing techniques complement PMI by providing real-time material verification without disrupting manufacturing processes. This integrated approach ensures material conformity, reduces rejection rates, and maintains production efficiency.
Our accredited PMI testing services in Bangalore help manufacturers verify material chemistry quickly and accurately, ensuring compliance with specifications while reducing testing costs and turnaround time.
Accurate Alloy Identification Using XRF at our ISO17025 Accredited Labs
Portable spectrometers are now available from various manufacturers to determine the concentration. Avoiding time consuming methods of chemical analysis using conventional methods such as wet analysis. Thought PMI is not a true replacement for wet or spectrometric analysis, it is an invaluable tool for readily verifying the chemistry to check for confirming on actual materials.
Superior Capabilities for PMI Analysis of Metals
At Trinity NDT Labs in Bangalore, our latest PMI equipment is pre-loaded with libraries & materials that can be analysed using XRF include:
- Nickel alloys
- Stainless steels
- Copper alloys
- Cobalt alloys
- Low alloy steels
- Tool steels
- Titanium alloys
- Zirconium alloys and
- Aluminium Alloys
Conventional Spectro Vs PMI
Conventional spectro method is capable of directly giving you the chemistry in terms of percentage of each element present to determine the grade of material. This method, primarily examines outermost surfaces of the material under investigation.
For proper and accurate results usually the sample is grinded sufficiently deep. Surface preparation is major challenge in spectrometer method. Whereas, Positive Material Identification (PMI) method directly gives the results in similar manner as spectro.
Main advantage is PMI does not virtually damage the material. It consumes only superficial layer or some time there is no absolute damage to the material. Above all, it is field portable method that can be used for testing materials chemistry directly on the shop floor, workshop or even in process during maintenance inspection of plants and structures. Without obstructing or impairing their current or future use.
Both spectro and PMI are useful for quantitative analysis of chemistry whereas Electromagnetic or thermo electric methods are qualitative in nature.
Need of Reference Standards
For PMI testing, small reference standards to be used for standardization before commencement of use. Such samples are supplied by many manufacturers with calibration traceable to National Physical Laboratory (NPL) in India. Such samples do not reflect the heat treatment or processing conditions of the reference sample. Just to check the PMI equipment accuracy before use, they are valuable and accurate enough for field application.
Testing Techniques
PMI testing is performed using
- X-ray Fluorescence spectrometry (XRF)
- Laser Induced Breakdown spectroscopy (LIBS)
XRF method is one of the most widely used for analysing chemistry of materials using PMI method. The major limitation of this method is, analysis Carbon and other elements having atomic number less than 22. Leading to difficulty in announcing the confirmation of grade for carbon steel as per specifications.
About XRF method for Chemical analysis
In X-ray Fluorescence spectrometry (XRF) method, an x-ray tube, or gamma ray source of low energy (1 to approximately 50keV) excites the materials and generate characteristic X-rays. These x-rays emitted from the material are analysed for the wavelength and intensity to correlate with element and its quantity.
Recent development in electronics and computer technology resulted in portable, reliable XRF equipment capable of delivering accurate results. Equipment can be used onsite testing applications.
PMI Equipment at Trinity NDT Labs in Bangalore
Various manufacturers use, patented technologies to give better and more accurate analysis. Trinity NDT uses ‘SciApps’ a US based XRF method of PMI testing. Up to 18-20 elements can be analysed in a single instance. To confirm the grade of steels, aluminium and alloys, at least 8 to 10 elements are needed.
Our PMI equipment weigh around 1.4kg, making it ideal for onsite inspection of material sorting, chemical analysis. The equipment can transfer data, test results using Wi-fi, USB and Bluetooth to other devices.
At Trinity NDT Labs in Bangalore, Our XRF machine for PMI testing can analyse upto 32 elements. Plus 22 precious metal elements for thorough identification of grade. Equipped with over 500+grades library it is unique service we deliver to our customers. Addition elements also can be added tailored to customer requirements.
Carbon Content Using PMI Testing for Steels
Major limitation of PMI testing using XRF technology is Carbon element analysis. XRF method currently does not respond well for elements below atomic number 22. Carbon content cannot be determinedaccurately. Latest technologies such as ‘Laser Induced Breakdown Spectroscopy (LIBS) developed for analysis of Carbon with great accuracy.
Surface Preparation for Chemical Analysis
The test specimen shall be ground to remove any oxide layers and corrosion products from the surfaces. Austenitic stainless steels such as AISI 300 series and other non corroding alloys are exception to this.
XRF source and detector shall rest on the sample or be positioned with respect to the sample in a precise and repeatable manner. Out PMI equipment using XRF works from -12 deg.C to 54 deg C at 25% duty cycle.
Lightening Fast Speed of Testing
Sorting of materials based on chemistry using electromagnetic and other qualitative methods may take as few as 5 seconds per sample excluding sample preparation and handling time. Whereas for PMI, quantitative reading may take from 10 seconds to a maximum of 200 seconds depends on make and model.
Even in some cases readings can be obtained as little as 3 seconds. Our PMI Equipment, capable to deliver lightening fast results. In general, we analyse each sample for three results and average them for final declaration of test results.
Selection of Right PMI Method
Selection of appropriate chemical analysis method for alloy identification is not just limited to sensitivity and accuracy.
It is more complex process. It primarily depends on Chemical Composition, accuracy level, Part Size, Weight, location, Quantity, Surface condition etc.,
Applications for PMI testing in Industries
- Material composition for conformity inspection during shutdowns and turnarounds
- In-service inspection of valves, flanges, pipelines
- Weld and filler metal verification
- Incoming raw material inspection in fabrication shops
- Positive identification before commissioning of large structures and pipelines
- Third-party inspection for exports or OEM supplies
People Also Ask
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1. Do you provide PMI testing in Mysore and Hosur?
Yes. Trinity NDT offers onsite PMI testing in both Mysore and Hosur, with typical response times of around 3 hours to Mysore and 2 hours to Hosur from our Peenya, Bangalore laboratory. Our team travels with fully portable XRF equipment, so testing can be carried out directly at your facility without any need to ship samples to our lab.
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2. Is onsite PMI testing available in Andhra Pradesh and Telangana?
Yes. We provide onsite PMI testing across Andhra Pradesh and Telangana, including cities such as Visakhapatnam, Vijayawada, and Hyderabad, with a standard mobilisation window of 24–48 hours. Our ISO17025-accredited team carries portable XRF analysers to your site, so testing can proceed without disrupting ongoing operations.
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3. Can PMI testing verify the purity of coins, jewellery, or antiques?
Yes. PMI testing using handheld XRF is a non-destructive way to verify the metal composition of coins, gold and silver jewellery, and antique or religious artefacts. We've tested items ranging from Mughal-era silver coins to gold bangles and antique idols, in each case confirming purity and elemental composition without melting, cutting, or otherwise damaging the piece.
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4. How is PMI testing different from destructive spectrometric analysis?
Conventional spectrometric (OES) analysis requires grinding or removing a physical sample from the material, which damages the part and takes it out of service. PMI testing using XRF achieves comparable chemistry verification without removing any material — it only interacts with the surface layer, making it suitable for finished components, in-service equipment, and delicate items like jewellery or artefacts that can't be sampled.
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5. How fast can Trinity NDT mobilise for onsite PMI testing outside Karnataka?
For locations outside Karnataka — including Andhra Pradesh, Telangana, and Tamil Nadu — we typically mobilise within 24–48 hours and other parts of India within 48-72 hours of confirming the job. Within Karnataka, response times are faster still: around 2 hours to Hosur and 3 hours to Mysore, Tumkur from our Peenya, Bangalore NDT lab.
Contact us Now for PMI Services
For PMI Services in Bangalore Contact Our NDT Labs at Address:
Trinity NDT WeldSolutions Private Limited
#491, Site No. 12, 14th Cross, 4th Phase, Peenya Industrial Area, Bangalore 560 058, Karnataka, India
Phone/WhatsApp:
+91 98441 29439
+91 72040 29439
+91 91413 39969
E-mail:
Info@trinityndt.com
Check our other NDT, Welding services
- Ultrasonic Testing(UT)
- Radiography Testing(RT)
- Computed Radiography(CR)
- Eddy Current Testing(ET)
- Magnetic particle Testing (MPT)
- Penetrant testing (DPT)
- Visual Testing of Welds(VT)
- De-magnetisation Service
- Welder Qualification Certification
- NDT Level II training
- Welding Inspection Course
- ASNT Level III Consulting
- NADCAP Accredited Aerospace NDT