NEW ACCREDITED SERVICES 2019
QUALIFICATION TESTING OF WELDERS
BS EN 13067:2012 - Plastics welding personnel — Qualification testing of welders — Thermoplastics welded assemblies
Click here to see the current UKAS Schedule of Accreditation
NEW ACCREDITED SERVICES 2017
DETERMINATION OF WATERTIGHTNESS
BS EN 1928 - Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of watertightness
NEW ACCREDITED SERVICES 2014
RESISTANCE TO WEATHERING / UV AGEING
BS EN 12224 - Geotextiles and geotextile-related products. Determination of the resistance to weathering.
BS EN ISO 4892-3 - Plastics. Methods of exposure to laboratory light sources Fluorescent UV lamps
BS EN 1297 - Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roof waterproofing. Method of artificial ageing by long term exposure to the combination of UV radiation, elevated temperature and water
ASTM D7238 - Standard Test Method for Effect of Exposure of Unreinforced Polyolefin Geomembrane Using Fluorescent UV Condensation Apparatus
NEW ACCREDITED SERVICES 2012
INTERFACE SHEAR STRENGTH
ASTM D5321
This test is used to determine shear strength parameters (cohesion and the angle of friction) of a geosynthetic against soil, or a geosynthetic against another geosynthetic, using a minimum of three normal loads and a constant rate of deformation. The limiting values of shear stresses are plotted against the applied normal stresses, and the shear strength parameters are generally determined by a best fit straight line.
GCL INTERNAL/INTERFACE SHEAR STRENGTH
ASTM D6243
This test is used to determine the internal shear resistance of a GCL or the interface shear resistance between a GCL and an adjacent material.
WATER ABSORPTION
DIN 18132, BS EN ISO 10769
These test methods are used to determine the water absorption capacity of fine soils/bentonite. A dry mass of soil is placed on a saturated porous plate, and the mass increase of the soil over a 24 hour period is recorded.