Pitch Tester - OpTest

This tester measures the resin content in pulp that may cause pitch trouble. The tester consists of an agitator fabricated with wire cloth, a pulp container, and a temperature-adjustable bathing tank. As the agitator rotates in pulp slurry, the resin content is deposited on the triangular wire cloth. To calculate the pitch volume, the deposits are dissolved in a solvent, and the resin content is separated using an extractor, dried and then weighed.