BS EN 17323:2020 pdf free.Geosynthetics – Determination of tensile properties of Polymeric Geosynthetic Barriers.
BS EN 17323 The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1849-2, Flexible sheets for waterproofing一Determination of thickness and mass per unit area一Part 2: Plastics and rubber sheets for roof waterproofing EN ISO 7500-1, Metallic materials一Calibration and verification of static uniaxial testing machines一 Part 1: Tension/compression testing machines一Calibration and verification of the force-measuring system (ISO 7500-1) EN ISO 9862, Geosynthetics一Sampling and preparation of test specimens (ISO 9862) EN ISO 9863-1, Geosynthetics一Determination of thickness at specified pressures一Part 1: Single layers (ISO 9863-1)Measure the width of the narrow portion of the dumbbll, e.g. using a calliper, to an accuracy of 0,03 mm. Measure the thickness of the specimen at one end of the specimen in accordance with EN ISO 9863-1. In case of a profiled GBR-P determine the effective thickness deff of the GBR-P according to EN 1849-2. Use the measured width and thickness to calculate the cross-sectional area of the test specimen. Place the test specimen in the grips, set 80 mm (土2 mm) apart, taking care to align the longitudinal axis of the test specimen with the axis of the testing machine. Tighten the grips evenly and firmly to avoid slippage of the test specimen. Gripping pressure shall not cause fracture of the test specimen. Position the extensometer at gauge length (25 mm). Set the speed of testing at a rate of 100 mm/min and with a maximum preload of 5 N record the load- extension curve of the specimen. FPO and PVC geomembranes must be preloaded by a force of2 N and EPDM geomembranes must be preloaded by a force of 1 N.  BS EN 17323 pdf download.