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Technical cork stoppers
rolha_tecnica.jpg

Technical

The technical stoppers are made of a high-grade agglomerad cork body wihth natural cork discs on both ends.

The most used measures are the following: 44x23mm and 40x23mm.

In what regards the different qualities, these can be Sup, A, B and C.

Specifications

Tests   

Characteristcs

Specifications

Test method

Physical – Mechanical

Lenght

± 1,0 mm

NP 2803-1

Diameter

± 0,4 mm

NP 2803-1

Ovality

≤ 0,3 mm

NP 2803-1

Moisture

4% ≤ M ≤ 9%

NP 2803-2

Extraction Force

30 ± 10 daN

NP 2803-4

Disk Thickness

≥ 4,0mm

 

Specific Weight

250-340Kg/m3

 

Chemical

Peroxide Content

≤ 0,1 mg/cork

ME 8

Dust Content

≤ 3 mg/cork

ME 7

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