Mixing cylinders can be used in the preparation of standard solutions and dilutions, the same as volumetric flasks.
Insert amount of substance or standard solution concentrate, fill mixing cylinder with solvent about half, swirl mixing cylinder to dissolve and mix, fill mixing cylinder with water to just below the ring mark, top up remaining volume until meniscus is excatly at ring mark by using a wash bottle or pipette, close mixing cylinder and shake upside down to mix thouroughly. Carefully remove closure to vent any pressure, taking care to avoid any aerosols that may have been generated.