Protecting the Consumer and Servicing
the Trade with Independence and Integrity

Tarnishing can be a big problem for precious metal alloys, particularly sterling silver and low carat golds. Dippal Manchanda MSc CSci CChem FRSC, technical director of the Birmingham Assay Office, explains the problem and offers some solutions. Many jewellers have sought advice about tarnishing from the Birmingham Assay Office – a problem which soon alters the colour, brightness and appearance of the jewellery, eventually rendering it unwearable. In response, the Laboratory team has carried out research which has subsequently been applied to develop tests to determine susceptibility to tarnishing, particularly in relation to packaging materials. What causes tarnishing? Tarnishing of silver, which is typically a blue/ purple/black colour, is triggered by.... To read more about what causes tarnishing and what can be done to prevent it happening make sure to visit our meet the experts page on The Laboratory's website -http://www.theassayoffice.co.uk/meet_the_experts/tarnishing_labexpert.html

Recent

Featured

The Birmingham Assay Office launch optional Rainbow Logo mark to raise funds for the NHS

18th Jun 2020

Learn more

CAN UV LIGHT KILL THE COVID-19 VIRUS ON JEWELLERY ARTICLES?

8th Jun 2020

Learn more

The Birmingham Assay Office elects five new Guardians of the Standard of Wrought Plate.

3rd Jun 2020

Learn more

ANCHORCERT ACADEMY LAUNCHES NEW WEBSITE

25th Sep 2018

Learn more

City of Wolverhampton wins Touchstone Award 2018

8th Jun 2018

Learn more

BHC CONSULTATION 2018: OUTCOME

2nd May 2018

Learn more

CATEGORIES

 
 

Your item has been added to the basket

You need to create an account, or login before you can add this item to your basket.