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- Raw materials are selected according to rigorous physical criteria.
- The cork planks are boiled in a new generation stainless steel boiler with a continue water filtration system and “flash détente” column.
- Vapour-extraction treatment.
- Traditional peroxide cleaning system.
- Physical and chemical controls in all production steps.
Taille standard : 24 x 44mm, 24 x 49mm, 24 x 54mm
Gamme : Extra, Classe 1, Classe 2, Classe 3, Classe 4
| Characteristics |
Technical specifications |
Tolerances |
| Superior range |
Standard range |
Basic range |
|
Visual characteristics (for 125 stoppers)
|
≥ 90% of the asked choice |
< 10% of the inferior choice |
< 10% of the inferior choice |
< 10% of the inferior choice |
| Dimensional characteristics (for 32 stoppers) |
Length (mm) L + 1,0
Diameter (mm) D ± 0,5
Ovalization (mm) ≤ 0,7
Chamfer (mm) 1,5±0,5
|
NQA 4 (A3/R4**)
NQA 2,5 (A2/R3)
NQA 4 (A3/R4)
NQA 4 (A3/R4)
|
NQA 4 (A3/R4)
NQA 4 (A3/R4)
NQA 6,5 (A5/R6)
NQA 4 (A3/R4)
|
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
|
| Physical and chemical characteristics |
Humidity (%) 6,0 ± 2,0 |
NQA 4 (A2/R3) |
NQA 4 (A2/R3) |
NQA 4 (A2/R3) |
| Dimensional (%) |
100%>90% |
100%>90% |
100%>90% |
| Capillarity |
No capillary ascent |
No capillary ascent |
No capillary ascent |
| Liquid watertightness (%) |
100% >1,2 bar |
100% > 0,9 bar |
100% > 0,6 bar
|
| Extraction force (daN) |
15<100%<40 |
15<100%<40 |
15<100%<40 |
| Peroxide residual (mg/stopper) |
≤ 0,1 |
≤ 0,1 |
≤ 0,1 |
|
Length (mm) L ± 0,7
Diameter (mm) D ± 0,5
Ovalization (mm) ≤ 0,7
Chamfer (mm) 1,5±0,5
|
NQA 4 (A3/R4**)
NQA 2,5 (A2/R3)
NQA 4 (A3/R4)
NQA 4 (A3/R4)
|
NQA 4 (A3/R4)
NQA 4 (A3/R4)
NQA 6,5 (A5/R6)
NQA 4 (A3/R4)
|
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
NQA 6,5 (A5/R6)
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