A professional who tests rolls of cellophane for conformance with specified winding tension. Respnsibilities include:

• Slides roll onto shaft of testing frame.
• Threads film from roll around rewind and tension rollers and turns setscrews to secure cellophane to clip on sliding bar.
• Turns handwheels to move sliding bar that pulls cellophane predetermined distance from roll and to press tension roller against film to apply specified tension.
• Reads rule gauge to measure slack in film between rewind roller and sliding bar.
• Cuts cellophane from roll, using knife.
• Records number and width of tested roll, amount of tension applied, and degree of slack.
• May examine cellophane for defects such as discoloration, wrinkles, scratches, and holes.