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What is the difference between lead and nickel compliant and lead and nickel free?
Hi,
This is my knowledge since I work in a fashion jewelry company.
The state of California has lead and nickel requirements for jewelry in order for the jewelry to be considered safe.
Nickel is not a problem since most jewelry factories in China are nickel-free .
However, California considers jewelry that has less than 600 ppm (parts per million) for lead safe (this is for adult jewelry, for children jewelry it is a lot lower).
If an earring is considered lead/nickel compliant, that means that the earring has some lead/nickel but lower than the threshold.
Lead/nickel free means that they have none.
However, I know that that it is VERY difficult to make completely lead free jewelry if it has metal plating. Many companies put lead free even though they should actually be writing lead compliant.
Just my 2 cents.
What else can I help you with?
What does NF sterling ring mean nickel Free or nickel filled?
NF sterling ring most likely refers to a nickel-free sterling silver ring. This means the ring is crafted from sterling silver that does not contain any nickel, which is a common allergen for some people. It is safe for those with nickel sensitivities to wear.
What is the difference between delta G and delta G in thermodynamics?
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Nickel can cause skin irritation and allergic reactions in some people when it comes into contact with the skin, leading to redness, itching, and rashes. It is not recommended to have nickel on a necklace, especially if you have sensitive skin or a known nickel allergy. Opt for nickel-free jewelry to avoid potential skin reactions.
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The abbreviation "NC" on a 925 silver ring stands for "Nickel Free." This indicates that the silver used in the ring is free from nickel, which is known to cause allergies in some people.
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In thermodynamics, the difference between delta G and delta G not is that delta G represents the change in Gibbs free energy of a reaction under specific conditions, while delta G not represents the change in Gibbs free energy of a reaction under standard conditions.
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To make nickel earrings nickel-free, you can coat them with a layer of clear nail polish or a jewelry sealant to create a barrier between the nickel and your skin. Another option is to attach hypoallergenic earring hooks or posts to replace the nickel ones.
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