Authored by Kevin Whitmore
The general public is showing a growing interest in the nickel content of the jewelry they buy. As a result, more and more of Rio Grande's customers are asking us about the nickel content in our findings and fabrication metals. This is understandable because a significant number of people have allergic reactions to nickel. According to some sources, roughly 10–12% of women and 6% of men experience an allergy to nickel. The allergy is not caused by the nickel itself, but rather by the nickel salts that are formed when the metal comes into contact with our perspiration; the reaction usually results in a rash or inflammation of the skin at the point of contact.
As a jewelry maker, you, like Rio, care about your customers and naturally share this concern about nickel content. You want to know if there is nickel in the many various alloys Rio Grande carries.
In addition, the European Union has issued a “Nickel Directive” that closely regulates the use of nickel in jewelry that will be in contact with human skin. The EU standard around nickel is tied to the release of nickel into the human bloodstream via skin contact. The testing involves prolonged exposure to synthetic sweat and measures the amount of nickel released. Theoretically, an item could contain nickel and pass this test if the nickel simply isn’t released from the item being tested. Certain grades of stainless steel are accepted as a viable alloy in the EU, as the nickel content is so tightly bound within the alloy that it is not released in EU nickel-release tests.
We very recently did a thorough examination of the findings and metal products Rio Grande offers, and I thought a checklist of the various milled metals we sell might be helpful. Please Note: While many alloys listed below do not have nickel intentionally added, there is a possibility there may be minute amounts (ppm) of nickel present as a trace element.
|Platinum||No nickel is added.|
|Silver||Traditional sterling, Argentium®, and fine silver have no nickel added.|
|Brass||All brass sheet and round wire sold by Rio Grande is manufactured to CDA #230 standards. No nickel is added.|
|Bronze||All bronze sheet and round wire sold by Rio Grande is manufactured to CDA #521 standards. No nickel is added.|
|Copper||All copper sheet and round wire sold by Rio Grande is manufactured to CDA #110 standards. No nickel is added.|
|Nickel Alloy||Our nickel alloy is manufactured to CDA #752 standards and is approximately 18% nickel. Though sometimes called “nickel silver,” this alloy contains no silver.|
|Titanium & Niobium||No nickel is added to either titanium or niobium.|
In general, avoid using alloys that contain nickel if you are exporting to the EU; these include nickel-white karat gold, white gold-filled, silver-filled that is either nickel-backed or has a nickel core, and nickel alloy base metal.
Throughout our website, you'll find notes on findings and milled products that, according to our vendors or to our own knowledge, do contain some level of nickel. We hope this information will help you make your best buying decision. Please keep in mind that this information is intended as a guide only; it is not comprehensive and should not to be construed as legal advice. If your business requires testing and/or a definitive declaration as to nickel content, such testing will need to be performed by you to meet your specific needs.
Please let us know if this information is helpful to you and if it answered your questions about nickel content; like you, we work hard to keep up to speed on these issues as they evolve.