Air Permeability Tester

Hava Geçirgenlik Test Cihazı

Digital, automatic pressure regulation air permeability.

Model technical data

Test head: 20 cm² as standard.
Maximum pressure difference: 500 Pa.
Flow indication: dm³/min; area-normalised permeability is evaluated separately.
Electronic control; test area and pressure difference are selected for the method.
Optional test head areas: 5, 25, 38, 50 and 100 cm².

Physical specifications and utilities

Electrical supply	Approx. 220–240 V AC, 50/60 Hz, single phase; build-dependent.
Power / connected load	Approx. 500–1500 W connected load for preliminary planning.
Overall instrument dimensions	Approx. 700 × 700 × 1200 mm (W × D × H).
Instrument weight	Approx. 70–110 kg net.
Gross / shipping weight	Approx. 102–162.5 kg gross; estimated packing allowance.
Lab requirements	Level, stable working surface; specimen conditioning follows the selected method.

Dimension order and approximate values are stated in each row. Packaging data are separate from instrument dimensions and net mass. Approx. rows are preliminary engineering estimates based on comparable equipment and function/capacity; they are not verified manufacturing measurements or standard requirements. Installation and shipment are finalised against the approved drawing and nameplate. Estimate scope: base product / one unit; external computer, bench and auxiliary plant excluded.

Specifications, dimensions, and power requirements are approximate and subject to change without prior notice for continuous design improvements.

Product technical specifications and images may vary according to manufacturing conditions and applicable standards.

Test and configuration

Measured output / function: Air permeability at a defined area and pressure difference
Parameters selected for the method: Test head, pressure difference and flow range
Verification points: Flow, differential pressure, area and airtightness

Listed methods are application references. Suitability is established by assessing the selected hardware, current method and calibration together.

Test parameters for the reviewed method

Values belong to the stated source edition. Test recipe, fixture and delivered instrument configuration are selected together.

ISO 9237:1995 · 7.1 / 7.4 / 7.6 / 9

Area: 5 / 20 / 50 / 100 cm²; area tolerance no greater than ±0.5%.
Required pressure-difference and flow measurement accuracy: ±2%.
At the recommended 20 cm² area: 100 Pa for apparel fabrics and 200 Pa for industrial fabrics; alternatives are reported.

ASTM D737-96 · 6.1.1-6.1.5, 10.4

Air-permeability method: head area 38.3 cm² ±0.3%; alternative areas may be agreed. Use 125 Pa pressure difference unless a product specification states otherwise; pressure and flow measurement accuracy ±2%. ISO areas and pressures are separate recipes.

ASTM D3574-17 — Test G · 63.2–63.4, 64.1, 65.4–65.5

2017 Test G: foam-holder cavity 50.0 ± 0.5 × 50.0 ± 0.5 × 25.0 ± 0.5 mm; pressure 125 ± 1 Pa, wait ≥10 s. Manometer/flowmeter accuracy ±2%. Requires foam adapter and calibration; fabric head alone does not establish conformity. 2025 edition unverified.

Control and recording specification

The following are method-specific software/recording requirements; delivered software modules are defined by the order scope.

Method code and edition, specimen ID, operator and selected test parameters are linked to the record.
Permeability = volumetric flow / test area; pressure difference, area and unit conversion are retained in the report.
Raw measurements, units, valid/invalid test flags and the reported result remain traceable.
Calculations are checked against known inputs and an independent calculation; sensor channels are checked against calibration values.

Historical method references (current method and fixture require separate review): BS 5636, DIN 53887

Download the technical brochure (PDF)Revision: 27 October 2026