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Quality

Quality and testing

Test methods we reference

EN ISO 10319Tensile strength of geotextiles and geogrids
EN ISO 12958In-plane water flow capacity
EN 13252Requirements for geotextiles in drainage systems
ASTM D4716In-plane flow (transmissivity) under load
ASTM D4632Grab tensile strength and elongation
EN ISO 9864Mass per unit area
EN ISO 12236Static puncture resistance (CBR test)
EN ISO 12956Characteristic opening size
EN ISO 11058Water permeability normal to the plane
BIS IS 17373:2020Indian specification for geogrids used in reinforced soil retaining structures
IS 4985Indian standard for unplasticised PVC pipes

Quality control

  1. Incoming material — supplier certificate for every batch of resin and yarn, checked against the product requirement.
  2. In production — mass per unit area, thickness and width measured at set intervals on every roll.
  3. Before dispatch — tensile, flow or puncture tested per batch; certificate issued with the consignment.
  4. Third-party — independent laboratory reports are available on request.
Russia and CIS. Frost, UV and fire-class (EN 13501-1) data is available on request for the relevant products.

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