All mercury must be removed from the reservoir of the CGME prior to shipping. Failure to do so will violate IATA (International Air Transport Authority) and USA Federal shipping regulations.
If you are not intimidated by government shipping regulations, then keep in the mind the reason they were written. Mercury will amalgamate with other metals, such as gold. Gold exists on circuit boards and there are other metals in wires, connectors and electronic components. IATA doesn't want mercury vapors getting loose in a cargo hold of an airplane and encountering avionic equipment. Neither should you want mercury sloshing around inside your very nice CGME, which also has circuit boards, connectors and electronic components.
Remember to insure your shipment for the replacement value.
Use a corrugated box of sufficient strength and size for the weight and size of the product and which meets the carrier's requirements
Instrument should be wrapped with 2 to 3 inches of bubble wrap, before placing inside the box. Place additional packing materials around the bottom, sides, and top before sealing the box.
Loose covers or trays should be secured or packed separately to avoid movement.
Do not send power cords or other cables unless specifically instructed to do so.
Include a short description of your problem, what you have done to try to correct the problem, and a data example, if possible.
Please print the assigned RA number on your shipping label. Failure to print the RA number will delay processing and repair of your instrument.