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20 mL EPA/TOC standard sample vials

20 mL EPA/TOC standard sample vials pre-assembled with PTFE/silicone composite septa. Available in clear or amber glass; select models include dust caps to help minimize external contamination, providing a reliable seal for high-purity organic carbon analysis.

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  • Clear glass allows visual inspection; amber glass offers additional UV protection for light-sensitive samples.

  • PTFE/silicone composite septa, 3.0 mm thick, meet EPA recommended guidelines for TOC analysis, reducing potential leachables.

  • Vials, caps, septa—and optional dust caps—are pre-assembled to streamline prep and minimize handling-related contamination.

  • Optional dust cap models help block dust during storage and transport, supporting high-cleanliness workflows.

  • Standard 27.5 × 57 mm size fits most headspace and autosampler systems without adapters.

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