LABORATORY & TESTING
GEOfabrics’ onsite laboratory is accredited by UKAS (The United Kingdom Accreditation Service) to ISO 17025 for the competence of testing to a number of key geosynthetic standards.
ISO 17025 Accreditation
GEOfabrics onsite laboratory is accredited by UKAS (The United Kingdom Accreditation Service) to ISO 17025 for the competence of testing to a number of key geosynthetic standards. UKAS is the sole national accreditation body for the United Kingdom. UKAS is recognised by government, to assess against internationally agreed standards, organisations that provide certification, testing, inspection and calibration services. Accreditation by UKAS demonstrates the competence, impartiality and performance capability of our laboratory. In short, UKAS ‘checks the checkers’.
GEOfabrics’ Laboratories are able to conduct both Index and Performance tests to a number of International Geosynthetic test standards:
Index tests enable a direct comparison to be made between different geotextiles. They are also used for quality control during manufacturing. GEOfabrics tests products for a number of index tests in accordance with their individual control plans.
CBR static puncture
Wide-width tensile (MD/CMD)
Mass per unit area
In plane flow capacity
EN ISO 12236
EN ISO 10319
EN ISO 13433
EN ISO 9863
EN ISO 9864
EN ISO 13719
EN ISO 11058
EM ISO 12958
The laboratory has pioneered a number of methods for simulating on-site conditions in order to evaluate the properties of different geosynthetics, for example:
The cylinder test (EN ISO 13719) – the laboratory has adapted and developed this test which closely simulates the long-term loading conditions on geosynthetics at the base of a landfill. This test uses the actual stone, liner and geotextile proposed for the site.
Leachate immersion tests – samples of geosynthetics are immersed in a leachate, taken from a specific site, which is heated to simulate landfill conditions. The samples are removed at regular intervals to check for changes in properties.
Trackbed Testing: Our unique testing rig has been designed and installed at GEOfabrics’ laboratories to further develop and refine the performance of geotextiles and geocomposites beneath ballast. The purpose of the rig is to carry out simulations in order to gain further data on the performance of geosynthetics so that purpose-made materials can be manufactured that extend track life. The hydraulic-powered ram actuators can be programmed to load the track dynamically to simulate anything from an empty passenger train to a fully loaded goods train, or an ultra-high-speed train of the future. Trafficking frequency – ten times per day, once per week, can also be modelled.