A professional who tests samples of each batch of pulp and run of paper, using standard testing equipment and chemical analyses to control quality and uniformity of products. Respnsibilities include:

• Measures acidity of pulp, using pH meter.
• Measures weight, thickness, and bulk of standard paper sample, using micrometer and scales.
• Determines liquor content of pulp, using standard chemical analyses.
• Makes hand sheet from pulp, using wire screen, press, and drying oven.
• Counts dirt specks in unit area of sheet, using microscope.
• Tests hand sheet and paper samples for bursting, tearing, and folding strength, using specified test equipment.
• Measures brightness of hand sheet and paper, using reflectance meter and compares color with standard colors.
• Records test data and prepares report for machine operators.
• May be designated according to product tested as Paper Tester (paper & pulp); Pulp Tester (paper & pulp); or according to processing stage as Dry-End Tester (paper & pulp); Wet-End Tester (paper & pulp).