People now pay more attention on the appearance and performance of jewelry. At present most of the metal jewelry in the marke
People now pay more attention on the appearance and performance of jewelry. At present most of the metal jewelry in the market have a series of quality problems, such as the chain break, the ear post slip off, the metal rusted or turned dark after worn a period of time.
No. |
Items |
Testing methods |
Regulation & Standard |
1 |
Appearance Quality |
Workmanship/Defects |
In-house method or buyer’s method |
2 |
Dimensions |
In-house method or buyer’s method |
|
3 |
Weight |
In-house method or buyer’s method |
|
4 |
Strength Performance |
Tensile Test |
In-house method or buyer’s method |
5 |
Compression Dent Test (Hollowware items only) |
In-house method or buyer’s method |
|
6 |
Setting Strength Test |
In-house method or buyer’s method |
|
7 |
Earring (Hook BendStrength) |
In-house method or buyer’s method |
|
8 |
Earring Post Backing (Earrings only) |
In-house method or buyer’s method |
|
9 |
Earring Snap Bar Open / Closure Force (Earrings only) |
In-house method or buyer’s method |
|
10 |
Bending Strength (Pendant/Brooches only) |
In-house method or buyer’s method |
|
11 |
Attachment Strength |
In-house method or buyer’s method |
|
12 |
Compression Test - Ring Collapse (Rings only) |
In-house method or buyer’s method |
|
13 |
Anti-corrosion |
Decolorization test of sulfide |
QJ 484or In-house method |
14 |
Salt Spray (Fog) Test |
EN 60068-2-11 EN 60512-11-6 GB/T 2423.17 QB/T 3826 QB/T 3827 QB/T 3828 GB/T 1771 ISO 9227 ASTM B368 ASTM B117 |
|
15 |
Tarnish Resistance (Perspiration soak method ) |
In-house method or buyer’s method |
|
16 |
Heat Exposure |
In-house method or buyer’s method |
|
17 |
Effects of Humidity |
In-house method or buyer’s method |
Accurate and clear label information is extremely important for the product traceability, use and identification.
Label assessment such as:
No. |
Items |
Testing methods |
Regulation & Standard |
1 |
Country of Origin Marking |
19CFR 134 |
19CFR 134 |
2 |
Tracking Labels (for Children’s Products) |
CPSIA |
CPSIA |
