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Table 4.

Ranking comparison OTR vs physicochemical parameters at 538 days. Stoppers B1 to B4; screw caps C1 to C4. OTR in mg/day/closure; TO2 at equilibrium in mg/bottle; fCSO2 and TCO in mg/L; d: day.

OTR and impact of oxygen exposure
Parameter Range low medium high
OTR mg/d 0.005 to 0.067 B2, B3, C1, C2 < C4 < B1 << B4 << C3
TO2 at equilibrium mg/bt 0.04 to 0.23 B2, C1 < B3, C2 < B1 < C4 << B4 << C3
% losses free SO2 538d 53 to 70 C2, C1, B2 <B3, C4 < B1 < B4, C3
ΔE* 538d 6.6 to 8.2 C4 < B1 < C2, B3 < C1, B2 < C3 < B4
fCSO2/TCO 538d 3.9 to 0.5 B3, C1, C2, B2 > C4 > B1 >> B4, C3

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