A professional who determines density and resistance of carbon samples which have been graphitized and inspects graphitized stock after removal from furnace. Respnsibilities include:

• Marks samples of green stock before graphitization to indicate their position in furnace.
• Receives samples from furnace unloader before remaining charge is unloaded.
• Cleans samples with scraper and steel wool and weighs them.
• Measures samples in several places with diameter rule to obtain average diameter.
• Places samples on resistance-testing device, sets meter to allow specified number of amperes to pass through sample, and records readings from millivoltmeter.
• Calculates average density and average resistance from weight, average diameter, and millivolt reading, using slide rule and formula.
• When furnace is unloaded, marks pieces with resistance grade number of samples.
• Inspects cleaned stock for pits, cracks, burrs, and bends.
• Determines extent of damage from cracks and imperfections, and marks salvageable pieces for cutting to next largest possible size.
• Directs workers to remove inspected pieces.