GB/T 20042.7 Carbon paper vertical permeability tester

GB/T 20042.7 Carbon paper vertical permeability tester

In the context of the rapid development of hydrogen fuel cell technology, the PAPT-B01D permeability tester uses carbon paper as the core material of the gas diffusion layer (GDL), and its permeability directly determines the power density, energy conversion efficiency, and lifespan of the fuel cell. In addition, this product's breathability tester is suitable for testing materials with high breathability and permeability, such as polyurethane foam PVC、 Leather, textiles, non-woven fabrics, porous ceramics, and porous metals can also be used for permeability testing of separation membranes, sponges, carpets, non-woven fabrics, paper, leather, porous ceramics, and porous metals. By measuring, material performance control can be achieved to meet the needs of practical product applications.

Product Features

The two measurement methods of constant pressure difference and constant flow rate can be freely selected

High precision electronic airflow and air pressure sensors ensure the accuracy of test data

Built in imported maintenance free vacuum system for better airflow stability

Professional sample fixtures for safer operation

Pneumatic clamping of samples saves time and effort, with consistent clamping force

7-inch color industrial grade touch screen, desktop operating system, simple and convenient

Can be connected to a needle type micro printer for outputting test results, which can be stored for a long time

Standard RS232 interface, convenient for system and computer connection and data transmission

test project

Method A

Stabilize the airflow passing vertically through the sample at a constant flow rate, measure the pressure difference formed on both sides of the sample under this condition, and calculate parameters such as air flow resistance.

Method B

By adjusting to create a constant pressure difference on both sides of the sample, measure the airflow rate passing vertically through a given area of the sample for a certain period of time, and calculate parameters such as air permeability.

reference standard

ISO 9237、ISO 4638、ISO 5636、GB/T 10655、GB/T 5453、GB/T 4689.22、GB/T13764、ASTM D737、TAPPI T460、JIS P8117、GB/T 20042.7

Test application

Basic ApplicationGB/T 20042.7 Carbon Paper Breathability Test

Automotive interior materials: suitable for automotive interior materials such as polyurethane PVC、 Testing of air permeability and air resistance of materials such as leather, textiles, and non-woven fabrics

Polymer porous elastic materials: suitable for air permeability testing of polymer porous elastic materials, such as sponge, etc

Textiles: Suitable for testing the breathability of textile materials, such as fabrics, non-woven fabrics, etc

Leather: Suitable for breathability testing of leather materials

Extended Application

Paper: Suitable for air permeability testing of paper materials, such as daily-use paper, roll paper, etc

Mask: Suitable for testing the ventilation resistance and pressure difference of various masks

test parameters

Range of pressure difference test10-15000s/100ml

Differential pressure resolution0.1s/100ml

pressure range0-20KPa (customizable for 5KPa and 10KPa)

pressure accuracy0.01 (customizable)

Test chamber1 set

sample size5cm x 5cm (customizable)

sample thickness≤ 5mm (customized)

Experimental area20cm2 (customizable)

Gas specificationsClean compressed air (self provided air source)

air supply pressure0.3*1.0MPa

interface dimensionsΦ 8mm polyurethane pipe

power supply220VAC±10% 50Hz

Standard ConfigurationOne set of host, fixture, and Φ 8mm polyurethane pipe

Optional partsComputer software, air compressor

GB/T 20042.7 Carbon paper vertical permeability tester