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Vaccine

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U.L.<br />

Potency<br />

L.L.<br />

Calculation of minimum release<br />

LRL<br />

} Error term<br />

potency (LRL)<br />

•Goal of calculation:<br />

•A lot with a potency test revealing a mean<br />

potency at the minimum release specification<br />

LRL has a 95% chance of retaining a mean<br />

potency at or above L.L. at the time of expiry<br />

Time<br />

Expiry<br />

} Expected stability loss

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