Established in 18871, Mullen Testers manufactures a variety of testers to gauge pressure readings for testing paper, plastics and textiles. Its motorized drives ensure constant pressure and its hand lever clamps deliver quick testing. It offers The Mullen AH Burst Tester is designed for testing corrugated, linerboard and heavyweight textiles and its hydraulic-powered clamp is adaptable to corrugated board that is clamped with moderation to prevent crushing flutes. Mullen Testers also provides HJ Hydrostatic Tester, which measures resistance to water penetration under pressure and its hand wheel drive is suitable for occasional testing that requires low-cost portable units. Its products are manufactured by Standex International Corporation, which provides engraved rolls and plates and mold texturing services to customers throughout the world.