In fact, 25% of the cell components are removed from the recipient’s circulation within 24 hours of transfusion]
Here's a new "anaerobic" blood storage method nearing commercial availability that will extend the shelf-life of refrigerated blood by 50-100% and will "sigificantly" increase the survival of red blood cells post-transfusion:
http://www.innovation-america.org/extending-shelf-life-donated-blood
We should note that we're guessing the actual volume of blood withdrawn / transfused with this new micro-dosing strategy. The old standard used to be 450ml. The biological passport-adjusted new amount is likely calculated to be as large as possible to not trigger any of the limit values for the parameters being tracked.
To adjust my calculation to the 25% loss of red blood cells, you'd need to transfuse approximately 200ml blood to get a 3% boost in the blood's ability to carry oxygen. A 150ml bag gets you approx. 2% uplift which is still significant.
As a side note, since the storage of blood requires only refrigeration (temp recommendation is +4C), not freezing, would there be any reason not to switch to using glass containers? That's how blood used to be stored back in the 1950's before plastic bags were invented - to replace "breakable" glass bottles. The plasticizer test may end up serving a short useful time span since a workaround is already known...