Table 1. Maximum dehydration solution for the various crystal forms and the transfer method needed to reach the level of dehydration.

	Dehydration solution	Transfer method
Needle	30% PEG 3350, 0.2 M ammonium sulfate, 0.1 M Tris pH 8.5	Incremental steps
Flat long	40% PEG 3350, 0.1 M Tris pH 8.5	Incremental steps
Flat short	35% PEG 3350, 0.1 M Tris pH 8.5	Incremental steps
Diamond	60% PEG 3350	Direct