Enjoy the benefits of increased productivity and instrument reliability with state of the art features of the Centurion autosampler and Evolution concentratorfor all your VOC purge and trap testing needs including EPA methods 8260, 524.2, 524.3, 524.4, 624, BTEX, GRO, DRO, and 5035. From waters to low level soils there’s an EST analytical solution to meet your analytical lab needs.