Jewellery Testing

Jewellery Testing

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In addition to our nickel testing, other services provided by the Sheffield Assay Office’s Analytical Services are in demand. We provide a range of tests which apply to jewellery and include many other products, such as gifts, accessories and even children's toys.

Lead & Cadmium Testing

LEAD - Sheffield Assay Office‘s Analytical Services are approved by US CPSC for the testing of Lead in surface coatings and metal substrates.

From August 2009 US federal law limits the content of Lead in an item to 300ppm (0.03%) and from August 2011 this reduced to 100ppm (0.01%).

The surface coating limit is currently 90ppm (0.009%).

AS can also test for the migration of certain elements using an in-house test method based on EN71-3.

CUSTOMER NOTICE: Changes to Lead Testing came into effect in October 2013. For your information we have put together a fact sheet. Download our Lead Fact Sheet

CADMIUMEU legislation and its REACH Directive came in to force on the 10th of December 2011. The regulation restricts the levels of cadmium in jewellery to 0.01% (100 mg/kg) by weight of the metal, this applies to:

The regulation also states that cadmium levels in paints and enamels need to be 0.1% (1000mg/kg) by weight or less.

For further information on Cadmium Testing download our fact sheet.

Plating Thickness and Composition

XRF measurements are available for verifying the thickness and composition of plated layers. This is required to establish plating specifications, for example:-

Physical Testing

A range of Physical Tests is now available from Sheffield Assay Office Analytical Services. As these are likely to be tailored specifically to your products please contact us to discuss your requirements.


In response to the demands of REACH and other International requirements Sheffield Assay Office Analytical Services has added Azo Dyes and Phthalates to the range of testing on offer.

Lead Crystal Glass

Lead crystal glass has many decorative applications. As part of the EU REACH legislation the lead in jewellery pieces and similar articles is restricted. Due to no suitable alternatives for the replacement of lead in lead crystal glass, exemptions apply since 9th October 2013. Analytical Services at the Sheffield Assay Office can help your company understand the legislation and remain compliant.

Download our Lead Crystal Fact Sheet for more detailed information.


The composition of packaging materials, and any possible tarnishing effect on the jewellery contained within the packaging, can be tested in our laboratory.

Spectacle frames

Following extensive work carried out for frame manufacturers the test ENV 14027 (also referred to as 'Certottica') is now part of a redefined BSEN 12472:2005 and is tested to BS EN 16128.Please contact us for further details.

Due Diligence

Confidential advice is available to assist with the introduction of due Diligence Defence.

A Certificate of Conformity Scheme is available that includes Due Diligence Defence, purposive sampling and stock audits.

Leather Testing

A range of tests specific to leather are now available to cover jewellery, fashion accessories and other items.

Further information is available from:

Telephone +44 (0)114 231 2121

Click here to download the Analytical Services application form.


Jewellery Tests

Lead Testing Available - Content

Up to 3 components
4 components
5 components
6 or more (max 20)

Cadmium Testing Available - Content

Up to 3 components
4 components
5 components
6 or more (max 20)

Plating Thickness & Composition Testing Available

Individual requirements will be discussed prior to examinations being undertaken.


Up to 6 point reading
7-12 point reading
13-18 point reading
19-24 point reading


1 point per item
2 points per item
3 points per item
4+ points per item

Tarnish Testing

Corrosion Resistance Testing
Tarnishing and Corrosion Resistance Testing

Specific requirements are subject to discussion.
All fees are subject to VAT (plus postage if applicable). Please get in touch for details of our charges.


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