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Contact SupplierCOBB SIZING TESTER is designed to determine the water absorbency of paper and board. Water absorbency of paper ( the cobb value) is define as the amount of water absorbed in a given time by one side of a unit area of paper or board placed horizontally under a head of one centimeter of water. Apparatus conforms to International Standard TAPPI T 441-45 and ASTM D 2045-647. SPECIFICATIONS Convenient Sample Clamping Test Cylinder Made of Brass About 5 Cm High, With An Internal Area 100 Cm2 Level Indication on Inside of Cylinder for 100 Ml. Stainless Steel Coach Roll Width 210 Mm, Weight 10+ 05 Kg.