BS EN ISO 11426:2021 - Jewellery and Precious Metals: Determination of Gold by Cupellation Method (Fire Assay)

Discover the definitive standard for determining the gold content in jewellery and precious metals with the BS EN ISO 11426:2021. This comprehensive standard provides a detailed methodology for the cupellation method, also known as the fire assay, which is renowned for its accuracy and reliability in gold analysis.

Overview

The BS EN ISO 11426:2021 is an essential document for professionals in the jewellery and precious metals industry. Released on March 29, 2021, this standard is the latest in a series of updates that ensure the most accurate and up-to-date practices are being followed. With a total of 16 pages, it offers a concise yet thorough guide to the cupellation method, a technique that has been trusted for centuries.

Key Features

• Standard Number: BS EN ISO 11426:2021
• ISBN: 978 0 539 06911 2
• Status: Standard
• Pages: 16
• Release Date: March 29, 2021

Why Choose BS EN ISO 11426:2021?

The cupellation method, or fire assay, is a time-honored technique that has been used for centuries to determine the gold content in precious metals. This method is highly regarded for its precision and reliability, making it the preferred choice for professionals in the industry. The BS EN ISO 11426:2021 standard provides a detailed and systematic approach to this method, ensuring that you can achieve the most accurate results possible.

Benefits of the Cupellation Method

The cupellation method offers several advantages, including:

• Accuracy: Known for its high level of precision, the cupellation method is capable of detecting even the smallest amounts of gold in a sample.
• Reliability: This method has been used for centuries and is trusted by professionals worldwide for its consistent results.
• Comprehensive: The BS EN ISO 11426:2021 standard provides a complete guide to the cupellation method, ensuring that you have all the information you need to perform accurate gold analysis.

Who Should Use This Standard?

The BS EN ISO 11426:2021 is ideal for a wide range of professionals, including:

• Jewellers: Ensure the quality and authenticity of your gold products by using the most accurate testing methods available.
• Precious Metal Analysts: Gain confidence in your analysis results with a method that is trusted by experts worldwide.
• Quality Control Specialists: Maintain the highest standards of quality in your products by adhering to the latest industry standards.

Conclusion

In the world of jewellery and precious metals, accuracy and reliability are paramount. The BS EN ISO 11426:2021 standard provides a comprehensive guide to the cupellation method, ensuring that you can achieve the most precise results possible. Whether you are a jeweller, a precious metal analyst, or a quality control specialist, this standard is an invaluable resource that will help you maintain the highest standards of quality and authenticity in your work.

Embrace the precision and reliability of the cupellation method with the BS EN ISO 11426:2021 standard, and ensure that your gold analysis is always accurate and trustworthy.

BS EN ISO 11426:2021

This standard BS EN ISO 11426:2021 Jewellery and precious metals. Determination of gold. Cupellation method (fire assay) is classified in these ICS categories:

• 39.060 Jewellery

This document specifies a cupellation method (fire assay) for the determination of gold on a material considered homogeneous. The gold content of the sample lies preferably between 100 and 999,5 parts per thousand (‰) by weight. Fineness above 999,5 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093).

The procedure is applicable to most types of gold samples. Some modifications are indicated for specific cases (presence of large amount of base metals, platinum or palladium, silver). It is not compatible with the presence above trace levels of iridium, rhodium and ruthenium (more than 0,25 ‰ for the sum of all three elements).

This method is also intended to be used as the recommended method for the determination of fineness in jewellery alloys covered by ISO 9202.