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Ministry of Textiles

Geotech Lab Testing

The Bombay Textile Research Association (BTRA) is pleased to announce that its Geotech Laboratory is now accredited by Geosynthetics Institute (GSI), Folsom, Pensylvania, USA under the GAI-LAP Accreditation Programme for the following 24 tests of geosynthetics products.

It is pertinent to mention that BTRA is the first institute in India and probably only the third institute outside USA to get this coveted accreditation. What this means to the geosynthetics producers and users is that they can get the products tested in BTRA with utmost confidence that the accuracy of the results are as good as any other GAI-LAP accredited laboratories. They can get the tests done in India, thus saving time and money without compromising on the quality of the results.
  1. ASTM D1004 – Test Method for Initial Tear Resistance of Plastic Film & Sheeting

  2. ASTM D1238 – Test Method for Flow Rates of Thermoplastics by Extrusion Plastometer ( Melt Flow Index )

  3. ASTM D1603 – Test Method for Carbon Black in Olefin Plastics

  4. ASTM D1693 – Environmental Stress-Cracking of Ethylene Plastics

  5. ASTM D1777 – Test Method for Measuring Thickness of Textile Materials

  6. ASTM D3776 – Test Method for Mass Per Unit Area (Weight) or Woven Fabric

  7. ASTM D4491 – Determination of water permeability of Geotextiles by permittivity method

  8. ASTM D4533 – Test Method for Trapezoid Tear Resistance of Geotextile

  9. ASTM D4595 / ISO10319 – Tensile Properties of Geotextiles by the Wide-Width Strip Method

  10. ASTM D4632 – Grab Breaking Load and Elongation of Geotextiles

  11. ASTM D4751 – Apparent opening size of Geotextiles

  12. ASTM D4833 – Index Puncture Resistance of Geotextiles, Geomembranes and Related Products

  13. ASTM D4884 / ISO10321 – Test Method for Seam Strength of Sewn Geotextiles

  14. ASTM D4885 – Test Method for Determining Performance Tensile Strength of Geomembranes Using Wide Strip Testing

  15. ASTM D5034 / ISO13934 – Breaking Strength and Elongation of Textile Fabrics (Grab Method)

  16. ASTM D5035 – Breaking Strength and Elongation of Textile Fabrics (Strip Method)

  17. ASTM D5199 – Nominal Thickness of Geotextiles and Geomembranes

  18. ASTM D5261 / ISO9864 – Test Method for Measuring Mass per Unit Area of Geotextiles

  19. ASTM D5323 – 2% Secant Modulus for Polyethylene Geomembranes

  20. ASTM D6241 / ISO 12236 – Test Method for the Static Puncture Strength of Geotextiles and Geotextile Related Products Using a 50-mm Probe

  21. ASTM D6637 – Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method

  22. ASTM D6693 – Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes

  23. ASTM D6767 – Pore Size Characteristics of Geotextiles by Capillary Flow Test

  24. ISO 13433 – Dynamic perforation (Cone Drop) Test

GEO-MATERIALS TESTING

PRODUCTS

Geotextiles: Woven and Nonwoven
Geogrids
Geocells
Geocomposites
Gabions
Geonets
Geomembranes
Geosynthetics Clay Liners
Prefabricated Vertical Drains
Coated Fabrics (Woven and Nonwoven): Rubber coated, PU Foam coated &Aluminum coated
Laminated fabrics (Woven and Nonwoven): Foam laminated, PVC laminated, HDPE laminated & LDPE laminated

GEO-TEXTILE

Mass per Unit Area
Creep & Creep rupture behavior
Thickness, Grab Strength
Trapezoidal Tear
Puncture Resistance
Permittivity
Apparent Opening Size (AOS)
CBR Puncture

GEO-MEMBRANE

Peel and Shear
Thickness, Density
Melt Flow Index
Carbon Black Content
Tear & Puncture Resistance
Tensile Properties

GEO-GRID

Aperture Size, Density
Melt Index
Carbon Black Content & Dispersion
Rib & Junction Strength
Wide Width

GEO-NET & GEO-COMPOSITES

Mass per Unit Area
Thickness, Density
Melt Index
Carbon Black Content
Transmissivity
Compression Behavior
CBR Puncture

GEO-SYNTHETIC CLAY LINER

Bentonite Mass per Unit Area
Swell Index & Fluid Loss
Internal Shear
Index Flux or Permeability

INTER FACE FRICTION BY DIRECT SHEAR

Geosynthetic to Geosynthetic
Geosynthetic to Soils
Geosynthetic to GCL’s
Soil

OTHER TECHNICAL TEXTILE PRODUCTS

Protective Clothing
Automotive Carpet (Moulded)
Interlining / Cover Stock
Wadding (High Loft)
Floor Mats / Rugs / Carpets
Medical Textiles / Pads
CBR Puncture
P.U. Foam
Felts (Woollen)

PROPERTIES CAN BE TESTED

Abrasion resistance ( Flat / Flex )
Absorbency
Air Permeability
Apparent Opening Size
Bending Length
Bentonite Swell Index
Binder Extraction
Biological Degradation
Birefringence
Breaking strength: Wide / Narrow strip tensile
Bursting Strength ( Ball & Diaphragm )
Bulk Density
Carbon Black Content
CBR Puncture Resistance
Compressional Recovery
Cone Drop Test
Direct Shear Test
Electrical Resistivity
Electrostatic charge
Environmental Stress Cracking Resistance [ESCR ]
Grab strength
Grave Tear
Liquid Strike Through Time
Melt Flow Index
Particle Size Analysis
Peel bond strength
Pore Size
Pullout Resistance
Thickness
Trapezoidal Tear strength
Shear Strength
Stress Cracking Resistance
Swell Index(Water Blocking Tape)
Water Permeability (Through-Plane)
Weld Strength(Seam Peel)

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The Bombay Textile Research Association, Lal Bahadur Shastri Marg, Ghatkopar(w), Mumbai – 400 086 INDIA

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