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Gas phase filtration cabin air filter test system supplier

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Whats/App: +86 156 1874 6768

Web: standard-groups.com

The Filter Test System for gas adsorption/desorption of air filters for passenger compartments (DIN 71460-2. ISO 11155-2). The Adsorption Test Stand for air filters for passenger compartments is used for quantification of adsorption capacity or desorption behaviour of filters.

The test section and associated ductwork are fabricated from stainless steel. Different sizes of filter media samples and elements can be tested and are mounted in a special adapter. A window in front of the test section allows visual observation of the sample during the test. A pair of mass flow controllers is used for dosing gaseous components from gas cylinders and a new, sophisticated, dosing unit for liquid gas components has been developed specifically for this application. This is based on evaporation of a droplet spray atomized by means of a two-stream nozzle fed from a µl-dosing pump. The gas concentration can be measured downstream of the filter. An exhaust system bypassing the test channel facilitates maintaining a very stable gas dosing.

Application

Evaluating gas adsorption and desorption performance of cabin air filter elements

Research and development of new filter media and performance optimization

Quality control and production inspection of cabin air filtration systems

Testing filters of various sizes and types

Simulating laboratory conditions for different gases (e.g., volatile organic compounds, sulfur compounds, ammonia)

Standards

(1) GB/T 32085.2-2015 — Automotive Air Conditioning Filters, Part 2: Gas Filtration Test

(2) DIN 71460-2 — Road Vehicles — Cabin Air Filters, Part 2: Gas Filtration Test

(3) ISO 11155-2:2009 — Road Vehicles — In-Cabin Air Filters, Part 2

(4) ISO 10121-1 / ISO 10121-2 — General Methods for Testing Air Filter Performance

Technical Data

ParameterUnitValue
Test flow rate m³/h 70 … 700
Measuring range, differential pressure Pa 0 … 1000
Test gases n-Butane 80 ppm (C₄H₁₀), Toluene 80 ppm (C₆H₅CH₃), Sulphur dioxide 30 ppm (SO₂), Ammonia 30 ppm (NH₃), Nitrogen (purging)
Power supply 3 × 230 VAC, 16 A
Test specimen dimensions mm max. 300 × 600
Gas analysers Hydrocarbons with FID, Sulfur oxides with NDIR, Nitrogen oxides with CLD
Sensors (others) Temperature, relative humidity, absolute pressure
System dimensions (W × H × D) mm 1800 × 2500 × 1100

Features

standard compliant testing of filter elements and filter mediaoperator is guided through test routines

modular system and instrumentation

versatile


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