Load and unload chemicals and bulk solids, such as coal, sand, and grain, into or from tank cars, trucks, or ships, using material moving equipment. May perform a variety of other tasks relating to shipment of products. May gauge or sample shipping tanks and test them for leaks.
Test samples for specific gravity, using hydrometers, or send samples to laboratories for testing.
Test vessels for leaks, damage, and defects, and repair or replace defective parts as necessary.
