Paper Air Permeance Tester - Schopper Method Air Permeability Tester
- Product Code: TQ1000
Application:
Cement bag paper, paper bag paper, cable paper, copy paper, industrial
filter paper, etc. all need to determine the degree of air permeability. This
tester is designed and manufactured for the above-mentioned various papers. The
tester consists of a container on a fixed support, a pattern holder, and a
pressure gauge. The upper part of the container is equipped with a vent valve
and a water filling valve with a funnel. Distilled water is injected into the
container from the water filling valve with a funnel. The bottom of the
container is equipped with an overflow valve and regulating valve to control
the flow of water. The pattern clamp ring is fixed on the bracket, and the
pattern clamp ring and the airbox have a hole with an area of 10cm². The airbox
is located under the paper clip ring. There are two connectors on the airbox.
The rubber hose is connected to the exhaust pipe and the pressure gauge
respectively.
The base of the instrument is the basis of the entire instrument, and a
level is installed on it.
Adjustment bolts to adjust the horizontal position of the instrument.
The working principle: the average airflow rate per unit area of paper
sheet per unit time and pressure difference under specified conditions. The
instrument is suitable for paper with air permeability between 1 × 10-2
and 1 × 102 µm / (Pa · s). It is not suitable for paper with large
surface roughness.
Operating conditions: Room temperature (20 ± 10) ⁰C air clean environment, placed on a solid and stable workbench.
| Technical Specification: | |
| Measure range: | (1～1000）ml/min, or 0~17um/(Pa.s) |
| Measure surface: | (10±0.02)cm2 |
| Test area pressure difference: | (1±0.01)kPa |
| Accuracy: | <100ml, volume error: 1ml; >100ml, volume error 5ml |
| Clamp ring inner diameter: | 35.68±0.05 mm |
| Coaxiality of the center holes of the upper and lower clamp rings: | ﹤ 0.05 mm. |