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Air Sea Containers Launch Independently Tested and Certified 95 kPa Biohazard Specimen Bags

23 October 2025 | Events

We’ve launched our new range of biohazard bags, specifically designed for the safe transportation of UN 3373 specimens and fully compliant with Packing Instruction 650.

Our 95 kPa Specimen Transport Bags are the ideal solution for secure and compliant transportation of UN 3373 biological specimens when used as part of a triple packaging system. Designed to meet the requirements of P650, these leakproof bags are a compliant secondary packaging for the transport of blood, tissue samples and other infectious substances suspected of containing UN 3373 Category B Infectious Substances.

Fully compliant with ADR, IATA and IMDG UN 3373 regulations, our biohazard bags ensure the secure handling of clinical and biological samples. They are trusted by laboratories, veterinary practices, hospitals and medical facilities worldwide for the transportation of biohazardous materials.

Our new biohazard bags come in two sizes:

  • BioBag-751 – our smaller option measuring 190mm x 275mm
  • BioBag-752 – a larger bag measuring 260mm x 355mm

When used as part of a triple packaging system, our specimen bags offer reliable containment during shipping. Each bag has been independently tested by an impartial test lab and proven to meet the 95 kPa pressure test in accordance with Packing Instruction P650.

Key Features

  • 95 kPa pressure tested by an independent test lab
  • Unique barcode for identification and specimen traceability
  • Integrated document pouch
  • Strong waterproof adhesive closure
  • Leakproof and puncture-resistant construction
  • Easy open bags with tear notches, no scissors required
  • Suitable for UN 3373 biological specimens, medical samples and biohazards
  • Fully compliant with ADR, IATA and IMDG P650

What Are the Packaging Regulations for Shipping UN 3373 Specimens?

When shipping UN 3373 specimens, it’s essential to understand the packaging requirements. Packing Instruction P650 states that the packaging must consist of at least three components:

  • Leakproof primary receptacle(s) (siftproof for solids), e.g. test tubes
  • Leakproof secondary packaging (siftproof for solids), e.g. a biohazard bag
    • Either the primary receptacle or the secondary packaging must be capable of withstanding an internal pressure of 95 kPa without leakage (for liquids).
    • An adequate amount of absorbent material must also be included (for liquids).
  • A rigid outer packaging with sufficient strength for its capacity, mass, and intended use, where at least one surface has minimum dimensions of 100mm x 100mm.

Our UN 3373 specimen bags can be purchased separately or as part of a UN 3373 shipping kit, offering a complete Category B packaging solution compliant with P650.

The BioBag-751 can be used with our Code 760 Postal Pack, ideal for Royal Mail postal services and designed to fit through standard letterboxes, it’s a great alternative to Royal Mail Safebox™. It can also be used with the mid-size Code 761 Bioshipper 1, which can accommodate up to four BioBags.

For larger quantities of biological samples, our BioBag-752 can fit 1x cryovial box or numerous vials and can be used with the Code 762 Bioshipper 2.  The bioshipper 2 can hold numerous BioBag-752.

All of our Category B triple packaging solutions are fully compliant with dangerous goods transport regulations Packing Instruction P650, whether you’re transporting biological materials for medical testing or scientific research, our 95 kPa BioBags provide a secure and compliant solution for UN 3373 shipments.

Why Choose Our Biohazard Bags?

Our BioBags are 95 kPa Tested and Certified

We independently test our BioBags to ensure they meet 95 kPa capability requirements. 95 kPa capable clinical bags ensure the packaging will not burst due to any atmospheric pressure changes which may occur during transit. If shippers use bags that are not capability tested to 95 kPa there is a risk of leakage.  If the bag bursts and leaks infectious contents through the packaging, it could endanger anyone who comes in contact with the package, including, handlers, drivers and lab workers, not to mention contamination of the vehicle, aircraft or shipping container used to transport the package.

View our internal 95 kPa pressure test demonstration here.

Our BioBags feature unique barcodes for identification purposes

Each BioBag features unique electronic barcoding for identification of patients, specimens and laboratory testing, they can be used to positively establish identification and link UN 3373 specimens to a test or patient throughout the transport process.

Barcoding is effective for reducing patient specimen and laboratory testing identification errors.

Our BioBags are leakproof, siftproof and puncture resistant

P650 requires a leakproof primary or secondary packaging design for UN 3373 liquids, or siftproof for UN 3373 solids. Our robust and puncture resistant self-adhesive bags are proven to be both leak and siftproof.

Our BioBags feature outer document pouch

We’ve included an integrated document pouch, ideal for keeping related documents safe with the UN 3373 specimens during transport.

Our BioBags are suitable to be used with UN 3373 shipper kits

Our biohazard bags have been designed to be used with UN 3373 outer packaging to form triple packaging. We’ve developed a range of UN 3373 shipping kits specifically for the transportation of UN 3373 substances, providing a triple packaging solution compliant with P650. All kits are pre-printed with QR codes providing quick access to assembly information including instruction videos, so shippers can be confident they are packing UN 3373 substances compliantly.

Want to learn more about 95 kPa pressure requirements? Read more here. For those interested in what the packaging requirements are for UN 3373 read our handy guide.

For more information about our BioBags or UN 3373 packaging solutions, contact us today we’ll help ensure your specimens are shipped safely and compliantly.

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