Mechanical & Physical Properties Test

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In addition to harmful chemical substances, the physical safety cannot be ignored when the jewelry is worn (especially the jewelry intended to children). For example, lobster clasp having sharp edge can scratch the skin, lap with sharp point may cause sprain, small pendant may be swallowed by children and long necklace chain may be wrapped around the child neck caused suffocation.

No.

Items

Testing methods

Regulation & Standard

1

Sharp  point

16 CFR 1500.48

16 CFR 1500.49

16 CFR 1500.50-53

16 CFR 1501

16 CFR1500.48

ASTM F2923

2

Sharp  edge

16 CFR1500.49

ASTM F2923

3

Small part

16 CFR 1501

ASTM F2923

4

Magnet hazard

ASTM F2923

ASTM F2999

ASTM F2923

ASTM F2999

5

Breakaway  feature and release

ASTM F2923

ASTM F2923

6

Battery requirement

ASTM F2923

ASTM F2999

ASTM F2923

ASTM F2999

7

Suction Tongue Stud

ASTM F2923

ASTM F2999

ASTM F2923

ASTM F2999

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