Purpose of list

Water absorptiveness of paper board or other materials is a function of various characteristics such as sizing, porosity, etc. The Gurley-Cobb sizing test can be used to test absorption or resistance to absorption of water, oil and other liquids.

Principle

This procedure determines the quantity of water absorbed by a sample of paper or other sheet material in a specified time and under standardized conditions. Other liquids such as ink, beverages, oil and water based solutions may be used instead of water. The standard area is on…

The Gurley Model 4301 Permeometer measures the porosity or air-permeability of materials where air flow is an important characteristic relative to their use. These materials might be non-woven or woven textiles, filter and cloth felts, some types of blotting, saturating and absorbent bag papers as well as meshes. Conform to TAPPI T-251, ASTM D-737, DATM 70.0-70 and ISO 5636/1.