Open Access
Table 1.
Description of the8 closures. 1 PVDC: Polyvinylidene chloride. 2 OTR: Oxygen Transmission Rate in mg/day/closure given by manufacturer. 3OTR, included release, calculated on 1 year. 4OTR, included estimated release of 1.5 mg calculated on 1 year.
| Code | Type | Length mm | Diameter mm | Weight g | Density kg/m3 | OTR2 mg/d | Method of OTR measurement |
|---|---|---|---|---|---|---|---|
| B1 | Synthetic stopper | 42 | 22.5 | 4.8 | 285 | 0.0143 | Luminescence |
| B2 | Technical stopper | 44 | 24.5 | 5.6 | 270 | 0.0054 | Coulometry |
| B3 | Technical stopper | 44 | 24.0 | 5.7 | 280 | 0.0053 | Colorimetry |
| B4 | Synthetic stopper | 42 | 22.0 | 7.6 | 488 | 0.047 | Coulometry |
| C1 | Screw caps + Saranex seal | 31.5 | 0.005 | ||||
| C2 | Screw caps + Saranex seal | 31.5 | 0.005 | ||||
| C3 | Screw cap + seal without PVDC1 | 31.5 | 0.067 | ||||
| C4 | Screw cap + seal without PVDC | 31.5 | 0.007 |
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