Weights for balances, and parts of balances of a sensitivity of 5 cg or better, including pans, weights and calibration masses.

State OIML class and nominal values; provide certificates and protective cases. Measuring and survey instruments are precision goods: pack in padded cases with silica gel, state accuracy class, range and resolution, provide calibration certificates traceable to national standards, CE/BIS marks for electronic units, and keep lithium batteries under dangerous goods rules; some navigation and geophysical instruments are export controlled.