Precision Woven. Performance Delivered. +91 99250 27798 info@dfrtextiles.com GIDC Chhatral, Gujarat, India
Quality Assurance

Quality Control. Tested for Performance.

At DFR Technical Textiles, quality is engineered into every meter of fabric. Our in-house laboratory is equipped with advanced testing instruments to ensure every lot meets the highest standards of filtration performance and reliability.

DFR in-house testing laboratory Quality
Assurance

In-House Laboratory & Test Capabilities

Textest FX3300 air permeability tester

Air Permeability

Measures the air flow rate through the fabric under a specified area and pressure.

Test Method ASTM D737-18
Precision balance for fabric weight testing

Fabric Weight (GSM)

Determines the mass per unit area of the fabric to ensure uniformity and consistency.

Test Method ASTM D3786
Thickness gauge for fabric thickness testing

Fabric Thickness

Measures the thickness of the fabric under specified pressure.

Test Method ASTM D1777-96
Tensile strength testing machine

Tensile Strength & Elongation

Determines the tensile strength in warp and weft directions along with elongation at break.

Test Method ASTM D5035
Surface resistivity and charge decay testing equipment

Antistatic Properties

  • Surface Resistivity
  • Decay Half Time
  • Shielding Factor
Test Method EN 1149-1 (Surface Resistivity) EN 1149-3 (Decay & Shielding)
Bubble point and pore opening test apparatus

Pore Opening & Bubble Point

Determines the largest pore size and bubble point pressure to ensure filtration efficiency.

Test Method ASTM F316-03 /
ASTM D6767
Hot air oven for thermal shrinkage testing

Thermal Shrinkage

Evaluates dimensional changes in fabric after controlled exposure to elevated temperatures, helping assess thermal stability and shrinkage behaviour.

Test Method ASTM D1776 /
D1776M

Test reports are issued against every lot and retained for traceability. Additional test methods can be accommodated on request.

Consistent Quality. Lot After Lot.

Lowest Defects (4 Point System)

Every lot inspected using 4 point system to ensure minimal defects.

100% Lot Inspection

All lots are inspected at every stage for critical parameters.

Uniformity Assured

Consistent quality across full width and length.

Traceable Quality

Each lot is traceable with records of all test results.

Application Consistency

Ensures reliable performance in demanding filtration applications.

Instruments & Standards

Measured, Not
Assumed.

Quality claims are only as good as the instrument behind them. Our air permeability testing is carried out on high-precision Textest systems from Switzerland, and every fabric property we quote is measured against a published ASTM or EN method — not an internal scale.

ASTM D737-18 ASTM D3786 ASTM D1777-96 ASTM D5035 ASTM F316-03 ASTM D6767 ASTM D1776 EN 1149-1 EN 1149-3
  • Automatic rolling cum inspection machine for defect-free fabric presentation
  • 4 point system grading applied to every inspected lot
  • Full test records retained and traceable per lot
Request a test report
Air permeability test report on screen in the DFR laboratory, showing the lot number, ASTM D737-18 method and a passing result

Where Testing Changes the Outcome

Permeability

Air permeability is the single best early predictor of flow rate and blinding behaviour in service. Measuring it on every lot is how we keep cycle times stable across repeat orders.

Pore Opening

Bubble point testing identifies the largest pore in the fabric — the one that determines filtrate clarity. It is the difference between a specification and a guess.

Antistatic Behaviour

For solvent and fine-powder duty, surface resistivity, decay half time and shielding factor are safety parameters. We test to EN 1149-1 and EN 1149-3 in our own lab.

Documented Performance

Ask us for the numbers.

We will share the test methods, the instruments and the lot records behind any fabric we quote — before you commit to a trial.

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