Hætteglas bør have mulighed for at blive varmet op til stuetemperatur (18°C - 22°C) i minimum 30 minutter og bør vendes blidt for at genfordele partiklerne, umiddelbart før væsken trækkes op af hætteglasset.
Vials should be allowed to warm to room temperature (18°C -22°C) for a minimum of 30 minutes and be gently inverted to resuspend the particles immediately prior to withdrawal from the vial.