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product details
  • Product Name: air permeability tester

  • Product model: tqd-1
  • Product manufacturer: Chenchi instrument
  • Product documentation:
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Brief introduction:
The air permeability tester is suitable for 0-17 μ Determination of medium air permeability range of paper and paperboard with m (Pa.s). The structure parameters and technical performance of the instrument meet the requirements of QB / t1667-98 "paper and board permeability tester", GB / t458-1989 "paper and board permeability determination method" (Schober).
Details:

Tqd-1 air permeability tester

Air permeability tester Model: tqd-1


Price: preferential promotion, welcome to inquire!


Application and scope of application:

The instrument is suitable for 0-17 μ Determination of medium air permeability range of paper and paperboard with m (Pa.s). The structure parameters and technical performance of the instrument meet the requirements of QB / t1667-98 "paper and board permeability tester", GB / t458-1989 "paper and board permeability determination method" (Schober).

Technical parameters:

1、 Measurement range:       0-17 μ m/(Pa.s)

2、 Test area:       10.0±0.05cm

3、 Pressure difference of sample:   1.00±0.01kPa

4、 Sample size:      60*100 mm

5、 The coaxiality of the center hole of the upper and lower clamping ring should not exceed 0.05mm


working principle

1、 The instrument consists of a container on a fixed prop, a paper sample clamp ring and a pressure gauge.

2、 The upper part of the container is equipped with a vent valve and a water adding valve with a funnel into the container.

3、 The bottom of the container is equipped with overflow valve and regulating valve to control the flow of water.

4、 The paper sample clamp ring is fixed on the bracket, and there is a hole with an area of 10cm2 on the paper sample clamp ring and air box.

5、 The air box is located under the paper sample clamp ring, and there are two joints on it, which are respectively connected with the exhaust pipe and pressure gauge with rubber hose. The base under the instrument is the foundation of the whole instrument, and a level is installed on it. Turn two adjusting bolts to adjust the horizontal position of the instrument.

6、 The working principle of this instrument is the average air flow per unit area of paper under the specified conditions under unit time and unit pressure difference.


National standard: GB / t458, QB / t1670

 

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