Whirl-Pak® Thio Sterilized Bags
Whirl-Pak® Thio Dosed Sterilized Bags are designed for safe and reliable sampling of chlorinated water in a wide range of applications, including municipalities, swimming pools, wastewater treatment, and environmental testing. Each bag contains a sodium thiosulfate tablet that instantly neutralizes chlorine at the time of collection, ensuring accurate microbiological test results for fecal coliforms, legionella, and other bacteria.
Built with Whirl-Pak’s trusted leak-proof seal and high-clarity polyethylene film, these bags provide a secure, sterile, and convenient alternative to rigid sampling containers. Available in gusseted options for self-standing use, they save time, costs, space, and plastic waste while maintaining industry-leading sample protection.
- Self-Standing Option Available in standard and gusseted-bottom designs. Gusseted bags can stand on their own, reducing the need for racks or holders.
- Built-In Thiosulfate Tablet Each sterilized bag contains one 25 mg nontoxic, non-nutritive sodium thiosulfate tablet, neutralizing chlorine instantly at the time of sample collection.
- Saves Time, Cost & Space Compared to rigid containers, Whirl-Pak® bags minimize plastic waste, storage requirements, and shipping costs.
- Easy Labeling Each bag features a convenient write-on strip for quick, clear sample identification with pen or marker.
- Leak-Proof Protection Whirl-Pak’s continuous perimeter seal ensures leak-free performance during collection, transport, and storage.
- Sterilized for Trusted Results All Whirl-Pak® bags undergo +1 Post-Manufacturing Sterilization, ensuring compliance with strict testing standards.
- Aseptic Collection Design Tyvek® pull tabs are positioned perpendicular to the bag opening, keeping hands away for safe and aseptic handling.
- Regulatory Compliance Certified R-NASE, D-NASE, Pyrogen, and BPH free. Complies with USDA, FDA, HACCP, and EPA requirements.
- Do not use above 180°F (82°C)
- Safe for freezing, including liquid nitrogen (-320°F / -196°C) with careful handling
- Volume measured with tab folded over three times (±5%)
- Shelf life: 5 years from sterilization date (see sterility documentation)
- Store below 90°F (32°C)
