- Description
- Inquiry
Description
COBB Water Absorbent Tester
Summary:
The absorbability meter is designed according to the basic parameters and requirements specified in GB/T1540-2002 method for the determination of water absorption of paper and paperboard.This standard is applicable to the determination of various paper or board surface absorbency.However, it is not applicable to accurately evaluate the writing performance of paper or board.
Paper and board surface water absorption (Cobb) value: the amount of water absorbed on the surface of paper and board per unit area under certain pressure and temperature within a specified time, measured in g/㎡.
COBB Water Absorbent Tester
The specific formula is as follows: C= (G2-g1) ×100.Where: C- Blow-up water absorption value;G2-sample mass weighed after water absorption G1-Sample mass weighed before water absorption.Paper and board absorbability tester is a conventional instrument for surface absorbability test of paper and board, also called paper surface absorbability weight tester.This instrument adopts the Cobb test method among various methods of absorbability test, so it is also known as the absorbability tester.
COBB Water Absorbent Tester
Parameter
- 1. The internal sectional area of the metal cylinder is 100±0.2 (corresponding internal diameter is 112.8±0.2mm), and the products with stand should be 50mm. The products with the products in contact with the samples shall be smooth.
- The fixed quantity of absorbent paper is 200 ~ 250g/㎡, and its absorption speed is 75mm/10min.When the quantity of absorbent single layer is less than 200 ~ 250 g/㎡, it can be satisfied with multiple layers.
- Smooth metal flat roller: the length of the roller is 200±0.5mm and the mass is 10±0.5kg.
- Water consumption: 100mm±5ml.
- Dimensions and Weight: Dimensions: 480 * 400 * 420 (mm)
It is easy and fast to use.
COBB Water Absorbent Tester
