Whirl-Pak B01489 Write-On Bags - 7 oz. (207 ml) - Box of 500

These sterile sampling bags are designed for collecting, storing, and transporting liquid, solid, or semi-solid samples. They are widely used in food safety testing, water analysis, environmental sampling, and laboratory research where contamination control is critical.

Yes, these bags are post-manufacture sterilized, ensuring a contaminant-free environment for accurate results. They are commonly used in microbiological and analytical testing where sterility is essential.

Each bag includes a white write-on strip that allows easy labeling with pen or marker. This helps improve sample identification, traceability, and organization, especially in high-volume lab workflows.

These sampling bags feature secure wire closure tabs and a continuous perimeter seal, providing a tight, leak-resistant closure. This design helps maintain sample integrity during storage and transport, even with liquids.

These bags can be used in a wide temperature range, including freezing conditions down to extremely low temperatures, but should not be used above approximately 82°C (180°F). This makes them suitable for cold storage, transport, and various lab environments.