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About Extraction Thimbles Size and Membrane Selection



Thimble sizes should be selected carefully to fit extractors correctly. The different sizes represent the established practice of showing the internal diameter and overall length of the thimble in millimetres. Therefore, an extra allowance for wall thickness should be made when calculating external diameters. The thimble should pass through the narrower end of the upper extractor socket, allowing 1-2 mm clearance, and be 5-10 mm above the level of the top of the siphon tube.

Thimble Media Selection:

Cellulose

Thimbles made of high grade cotton cellulose. Smooth interior surface. Absolutely seamless. Fit most Soxhlet extraction devices

  • Fat determination of meat and diary products
  • Determination of PCB in fish products
  • Determination of free fats in food products
  • Determination of pesticide residues in food products
  • Extraction of plasticizers from PVC
  • Determination of organic compounds in washing agents
  • Extraction of additives from livestock feed
  • Extraction of dioxins
  • Solid particle such as dust collection in air flows
  • Evaluation of liquid content in concrete slurry

    Glass Microfiber

    High purity glass microfiber thimbles used for high temperature filtration, up to 550C (1022F), or when using solvents incompatible with cellulose thimbles.

  • Gravimetric methods for hot environments

  • Gravimetric methods for acidic gasses

  • Extraction methods common to biochemical analysis


  • Thimble Size Selection:

    Thimble sizes should be selected carefully to fit extractors correctly. The different sizes represent the established practice of showing the internal diameter and overall length of the thimble in millimetres. Therefore, an extra allowance for wall thickness should be made when calculating external diameters. The thimble should pass through the narrower end of the upper extractor socket, allowing 1-2 mm clearance, and be 5-10 mm above the level of the top of the siphon tube.

    Due to the large number of extraction thimble parts, we kindly ask that you contact us directly to receive
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