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Nasco Sampling

Smarter sustainable solution for results you can trust!

Nasco Sampling

Over 60 years ago, the Whirl-Pak® closure bag was designed to collect liquid samples. Since then Whirl-Pak® has continued to strive for excellence and provide users with robust sampling bags that improve sustainability, time, and cost efficiencies. Whirl-Pak bags are approved by EPA, FDA, USDA, and HACCP.


  • Whirl-Pak® Thio-Bags®

    • EPA approved for more efficient microbiological water sampling.
    • Specifically designed for sampling chlorinated water from municipalities, swimming pools, waste water, and other areas to test fecal coliforms or other bacteria
    • Each bag contains nontoxic, nonnutritive tablet containing active sodium thiosulfate to neutralize chlorine at the time of collection.
    • Benefits include: saving technician time, utility costs, storage space, and disposal costs when comparing to rigid plastic containers.
    • 5 variations available

    The job of collecting water samples is easier with the Whirl-Pak® Stand-Up Thio-Bag®! A special gusset on the bottom of the bag flattens out when water is put in the bag, allowing it to stand up completely by itself. No rack or other holder is needed to keep the bag upright. Forget washing and sterilizing glass bottles and disposing of expensive vials. Sterile and unbreakable, these bags will save time and money...
    More Information » whirl-pak.com/whirl-pak-thio-bag-family

    Whirl-Pak® Thio-Bags®
  • Sludge Tools

    The Sludge Judge® series of tools are made from plastic tubing resulting in double the capacity and a very rigid unit when assembled. Designed for sampling 5% or less solids. Can be assembled according to the requirements of the job. Add or subtract sections as needed. Markers on the tubing will help identify the amount of sludge in the tank. The Sludge Judge® is not autoclavable. One-year warranty.

    Visit Whirl-Pak.com to learn more about sludge tool options. 

    More Information » whirl-pak.com/sludge-judge

    Sludge Tools
  • Whirl-Pak® Write-On and Standard Bags

    Our most popular bag with or without a write-on strip.

    • As with all of our bags, puncture-proof closure tabs
    • Exceptionally clear, blended, virgin polyethylene film that is superior in strength to other brands
    • FDA approved for food contact
    • Multiple sizes and colored tape options for a versatile and trusted selection 

    More Information » whirl-pak.com/whirl-pak-standard-bags

    Whirl-Pak® Write-On and Standard Bags
  • Whirl-Pak® Stand Up Bags

    Works like a bottle without the cost and storage constraints. Our self-standing bags make sample handling easier as they give users the ability to perform important laboratory functions with both hands.

    • Save space and money
    • Sterilization is guaranteed in this durable sample collection container
    • Easy to recycle
    • Available in 7 sizes
    • No rack or other holders needed to keep the bag upright, making for easy collection

    More Information » whirl-pak.com/whirl-pak-stand-up-bags

    Whirl-Pak® Stand Up Bags


Whirl-Pak® Thio-Bags®
August 27, 2021 2:24pm


  • Nasco Sampling
    4916 E. Broadway
    Madison, Wisconsin 53716
    United States
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  • Last UpdatedAugust 12, 2022 1:31am EDT