Precious Metals Testing & Proficiency Testing Services
ISO-Aligned Services Supporting BIS, NABL & Accreditation Compliance
In the precious metals ecosystem, accuracy is not optional — it is essential.
Every assay result, every compliance decision, and every accreditation outcome depends on technically valid and reliable data.
That is where our role begins.
Our Purpose
We are an independent organization dedicated to precious metals testing and proficiency testing, supporting Hallmarking Centers and Testing Laboratories in achieving consistent, defensible, and audit-ready results.
Our services are designed in alignment with internationally recognized standards, ensuring confidence during regulatory reviews, accreditation assessments, and routine quality monitoring.
Built on International Standards
Our testing and proficiency testing programs are aligned with:
- ISO/IEC 17025:2017 – General requirements for the competence of testing laboratories
- ISO/IEC 17043:2023 – General requirements for proficiency testing providers
This standards-based approach enables our clients to meet the regulatory and accreditation expectations of BIS, NABL, and other relevant accreditation bodies.
Experience That Understands the Ground Reality
Behind every program is a team of highly qualified professionals with more than 25 years of experience in precious metals testing, Sampling, Refining and quality assurance.
This experience ensures:
- Practical understanding of Hallmarking and Laboratory operations
- Technically sound method selection and PT design
- Clear, audit-friendly documentation and reporting
We design our services not just to meet standards—but to work in real laboratory environments.
What We Do
Precious Metals Testing Services
Our testing services deliver accuracy, traceability, and consistency through validated methods and controlled processes:
- Gold & Gold Alloy Assaying
- Silver & Silver Alloy Assaying
- Pure Gold, Pure Silver, Pure Copper, Pure Lead Testing (Compliance for hallmarking centers / Testing Labs)
- Platinum Group Metals Assaying
Proficiency Testing Programs
Our proficiency testing programs help Laboratories & Hallmarking Centers to demonstrate competence, monitor performance, and strengthen accreditation readiness.
Programs available for:
- Gold proficiency testing
- Silver proficiency testing
All PT activities are conducted with strict controls on impartiality, confidentiality, and statistical validity.
Why Laboratories & Hallmarking Centres Choose Us
✔ Independent and impartial organization
✔ ISO-aligned testing and PT programs
✔ Designed for BIS & NABL / ISO 17025:2017 compliance
✔ Technically robust and audit-ready
✔ Confidential, reliable, and traceable results
We act as a quality partner, supporting long-term compliance rather than short-term results.
Moving Forward with Confidence
Whether you are:
- Preparing for a BIS or NABL / ISO 17025: 2017 assessment
- Participating in proficiency testing
- Strengthening laboratory quality systems
- Seeking reliable precious metals testing services
We are here to support your journey.
Get in Touch
For participation in proficiency testing programs or to avail precious metals testing services,
📩 contact us or submit your request through the PT Registration form.
Registered Office
DMARA Quality Services Private Limited
Gami Industrial Park, Shop No. 76,
A1, 2nd Floor, Plot No. C-39A,
TTC Industrial Area, Pawane,
Navi Mumbai – 410710, Maharashtra,