What is the maximal timeframe between sperm acquisition to sperm cryopreservation, in different "culture" conditions?

The timeframe cut-off between ejaculated sperm acquisition and cryopreservation should be 72 h, unless sperm was maintained at room temperature, where it might be longer. It would be prudent to check for sperm vitality prior to freezing in cases where only immotile sperms are present.