HDPE containers with white LDPE-lined polypropylene caps are recommended for collecting water, leacheate, and other liquid, semi-liquid, or viscous samples to be analyzed for inorganic trace analytes. The wide mouth enables easy filling and sample retrieval. Choose from small quantity lab packs or economy bulk packs. Available unprocessed and ready for your own cleaning procedure, or certified to EPA Performance Based Sprecifications for metals, cyanide, and fluoride analyses. Caps are assembled onto containers.