This test is used for reducing the risk of asphyxiation from end closures for writing and marking instrument.
Material: Stainless steel
Inner Diameter: 16mm (+0.05/-0mm)
Thickness: 19mm
Weight: 100g
Standards: ISO 11540 Section 3.2 ; BS 7272-2 Section 4.2; GB/T 24110 Section 4.1.2
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