Designed for collecting soil, sludge, waste and water samples for a variety of organic and inorganic target analytes where light protection is required. Thermo Scientific Wide-Mouth Amber Glass Packers are available Certified to meet EPA performance-based specifications for semi-volatile organics, pesticides, PCBs and metals analyses, Processed the same way as the certified jars but without certification documentation, or Unprocessed and ready for your own cleaning procedure.