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Cork stopper moulded, with cylindrical body of 0,25/2 mm microgranulation and treated with steam-extraction system.

 

Cork stopper validated by CECA

 

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DIMENSIONS :

48x31 mm / 48x30,5 mm

 

TOLERANCE :

Length: ± 0,3 mm
Diameter: ± 0,2 mm
Bevel: 4 mm ± 0,5
Moisture content: 4 % – 8 %
Density : 270 kg/m3 ± 6 %
Torque resistance: > 7,5 daN/cm2
Torque angle: > 30º
Resistance to boiling water: no degradation
Recovery: ≥ 90 % after 5 min; ≥ 92 % after 1 hour
Liquid seal capability: 100 % < 6bars
Powder content/stopper: ≤ 0,001 g/stopper
Aerobic bacteria: < 30 U.F.C./stopper
Fungi and yeasts: < 10 U.F.C./stopper
2,4,6 TCA: ≤ 1.2ng/l
PCA,TeCA,TBA: < LOD*
Scent and flavour control: no effect


Tests and specifications in accordance with UNE 56923, UNE 56930.

These specifications are understood when the corks leave the factory.

*LOD (Limit of Detection of the analytical method  SPME/GC/MS): 0,5 ng/L for PCA and TeCA ; 1 ng/L for TBA.