The use of zinc, cadmium,
mercury, or pure tin is expressly prohibited.
For electrical, electronic or
electromechanical (EEE) hardware, all tin finishes must be alloyed with a minimum
of 3% lead (Pb).
Contractor shall submit a
certificate with each shipment stating compliance with this clause.
Any deviations from this
requirement shall be approved by JPL in writing prior to acceptance of this