Control tester TQD-G1

air flowpermeabilitylaboratory

TQD-G1 is a laboratory tester engineered to determine air permeability of decorative and porous materials used in automotive interiors and other applications (polyurethane, expanded plastics, PVC, leather, textiles, nonwovens, foams, paper). The instrument enables control of physical properties to ensure compliance with application requirements.

Professional technology

• Designed to meet requirements of global automotive manufacturers.
• Two test modes: constant pressure difference to measure flow (Method A), or constant flow to measure pressure difference (Method B).
• High-precision electronic sensors for air flow and air pressure to ensure accurate test data.
• Microcomputer control with LCD menu interface and PVC operation panel for straightforward use and readout.
• Equipped with a micro-printer and a standard RS232 port for PC connection and data transfer.

Test principle

• Method A
  Apply a constant airflow vertically through the specimen and obtain air permeability by measuring the pressure difference.
• Method B
  Apply a constant pressure difference across the specimen and obtain air permeability by measuring the airflow through a defined area over a set time.

Standards

• ISO 9237
• ISO 4638
• ISO 5636
• GB/T 10655
• GB/T 5453
• GB/T 4689.22
• GB/T 13764
• ASTM D737
• TAPPI T460
• JIS P8117

Applications

• Basic applications
  
  • Automotive decorative materials
    Permeability testing for polyurethane, PVC, leather, textiles and nonwovens used in vehicle interiors.
  • Elastic and porous polymer materials
    Permeability testing for sponges and other porous polymers.
  • Textiles
    Permeability testing for woven and nonwoven fabrics.
  • Leather
    Permeability testing for leather materials.
• Extended applications
  
  • Paper
    Permeability testing for paper materials such as tissues and toilet paper rolls.

Specifications / technical data

• Model: TQD-G1
• Test range — pressure difference: 0 ~ 1000 Pa
• Test range — flow: 0 ~ 30 L/min
• Sample size: Method A: 52 mm x 52 mm; Method B: Φ12 mm ≤ D ≤ Φ71 mm
• Port size: PU tubing Φ8 mm
• Dimensions (L x W x H): 502 mm x 334 mm x 298 mm
• Power supply: 220 VAC 50 Hz / 120 VAC 60 Hz
• Net weight: 27 kg
• Standard configuration: main unit, micro-printer, clamps, round sample cutter and vacuum pump (imported)
• Optional items: professional software, communication cable, custom clamps