Gurley 4118NBreathability meter

GurleyBreathability meter is a standard method for measuring the porosity, breathability, and air resistance of various materials. Such as paper, textiles, plastics, and film, etc. (取决于上下文，如"but"Gurley 4118Suitable for testing medium to slightly high breathability paper and cardboard.

Principle:

Measure a certain volume of air under stable moderate pressure（25-300CC）The time required to flow through the standard sample area. The pressure of the air is provided by an inner bore cylinder with a specific diameter and standard weight, which can move freely within an outer cylinder filled with sealing oil. The test sample is sandwiched between standard gaskets, with a small hole in the center of the gasket for gas to pass through. When detecting, the initial gas flow rate is25CCAnd then all of them are50CCThe total flux is300CCOn the new breathability tester, the sample is clamped by rotating the knob and lifting the clamp on the base. The automatic counter, instrument base, and pneumatic components can be selected simultaneously or separately.

Application:

In the paper and printing industry, control and select raw materials in order to achieve appropriate liquid absorption (ink, ink blending oil, glue, etc.).

For materials and products with high requirements for breathability control, such as filter paper, breathable bags, etc.

Supplementing other physical property tests with high-speed processes; Thus obtaining the desired forming, appearance, and strength characteristics, as breathability is closely related to these characteristics.

Technical parameters:

Inner cylinder diameter:3inch

Tube weight:5ounce

Pore diameter:0.1square inches

Gas flow rate:100CC

Pressure:1.22inchwater column