ISO 11426:2021 is titled:
"Jewellery — Determination of gold in gold jewellery alloys — Cupellation method (fire assay)"
This standard specifies the cupellation method, commonly known as fire assay, which is the most accurate and traditional method for determining gold content in gold alloys.
ISO 11426 applies to alloys with gold content ranging between 33.3% (8 carats) and 99.9% (24 carats). It is primarily used for quality control, certification, hallmarking, and dispute resolution in the precious metals industry.
Accurate gold content measurement is crucial for trust, compliance, and fair trade in the global jewelry market. Without a standardized testing method:
ISO 11426 ensures the gold content is measured with high precision, maintaining consumer confidence and regulatory compliance.
Adopting ISO 11426 in your testing or production processes provides:
🔬 Highly Accurate Gold Content Determination
The cupellation method offers unparalleled precision in assaying.
🛡️ Improved Consumer Protection
Ensures products meet stated purity levels.
💼 Standardization Across the Supply Chain
Facilitates international trade and hallmarking compliance.
📊 Reliable Quality Control and Assurance
Essential for brand credibility and product certification.
📈 Supports Regulatory and Legal Compliance
Used by government-authorized assay offices and certifiers.
Partnering with GMC’s ISO 11426 consulting services provides your organization with:
✅ Accurate and Certified Testing Procedures
Ensure your lab meets ISO and hallmarking authority standards.
✅ Reduced Quality Disputes and Rejections
Eliminate uncertainty in gold content testing.
✅ Improved Market Credibility and Brand Trust
Demonstrate commitment to quality and integrity.
✅ Ease of International Trade and Export
ISO-standard assay reports are accepted globally.
✅ Efficient Auditing and Compliance Readiness
Prepare for inspections from regulatory and hallmarking authorities.
✅ Training and Capability Building for Laboratory Staff
Learn cupellation techniques aligned with ISO standard
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Growth Management Corporation is a management consulting firm that provides consulting, training, implementation, and certification services and solutions to organizations of all sizes, and all domains.
