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What U.S. Businesses Must Know Before Shipping UN3373 Specimens
When transporting UN3373 Category B biological substances in the United States, selecting the right 95kPa biohazard bag isn’t just about convenience, it’s about regulatory compliance, operational safety, and protecting everyone involved in the shipping chain.
Many suppliers claim their bags are “95kPa compliant.” However, independent verification often tells a different story. With increasing regulatory scrutiny on UN3373 compliant packaging, now is the time for laboratories, hospitals, biotech companies, and diagnostic facilities to ask:
Are your current biohazard bags used as secondary packaging truly capable of passing 95kPa pressure testing under P650 & 49 CFR 173.199 requirements?
If not, your organization could be exposed to compliance risks, shipment rejection, and potential safety hazards.
What the 95kPa Test Means and Why It Matters
Under Packing Instruction P650 (IATA & IMDG) and DOT 49 CFR 173.199, used for shipping UN3373 Category B substances in liquid form, either the primary receptacle or the secondary packaging must withstand an internal pressure of 95 kPa (kilopascals) without leakage. 
This pressure requirement simulates conditions that may occur during transportation.
A biohazard bag that fails this test creates serious risks:
- Leakage of infectious materials, posing danger to humans and animals who come into contact with the package
- Contamination of couriers, laboratory personnel, and transport vehicles
- Rejected shipments or regulatory non-compliance
For U.S. businesses shipping biological materials, using a 95kPa pressure tested specimen bag as part of a UN3373 compliant triple packaging system is essential for legal and operational protection.
A genuinely compliant 95kPa bag provides peace of mind that specimens are transported safely and in accordance with dangerous goods regulations.
What to Look for When Choosing a 95kPa Biohazard Bag
When evaluating suppliers of UN3373 shipping supplies, it’s critical to look beyond marketing claims.
A properly engineered 95kPa specimen transport bag should demonstrate:
- Independent laboratory testing verifying 95kPa capability in line with regulations
- Leakproof, puncture, resistant construction
- A secure, tamper, evident adhesive seal
Additional features that support both compliance and operational efficiency include:
- Clear labeling and biohazard markings suitable for UN3373 transport
- An integrated document pouch to keep paperwork separate and contamination free
- Traceability features such as unique barcodes to support patient identification.
For laboratories and healthcare systems seeking compliant packaging in the USA, these features are not optional, they strengthen compliance and improve specimen management throughout the logistics process.
Questions to Ask Before You Buy 95kPa Biohazard Bags
Before purchasing or reordering 95kPa biohazard bags or a UN3373 shipping kit, ask your supplier:
- Can you provide independent test certification showing 95kPa compliance?
Genuine 95kPa bags should have verifiable test results confirming performance. - What testing method was used and is it aligned with DG testing requirements?
Testing must be conducted under recognized international dangerous goods transport standards. - Do your bags include traceability features such as barcoding?
Barcoding improves accountability and reduces specimen identification errors. - Can you provide evidence of use in compliant UN3373 shipping systems?
Proven integration within an approved UN3373 compliant triple packaging system is a strong indicator of reliability.
For procurement teams sourcing bulk UN3373 packaging kits or Category B shipping kits, these questions are essential for due diligence.
How to Verify 95kPa Capability
Any supplier claiming 95kPa performance should be able to provide:
- A 95kPa test certificate
- Details of test conditions (pressure applied and duration)
Transparency matters. If this documentation isn’t readily available, it’s worth considering whether the packaging truly meets the required regulatory standard.
When shipping UN3373 biological substances, assumptions are not a compliance strategy.
Proven 95kPa Compliance for UN3373 Shipping
Air Sea USAs’ BioBags (Models 751 & 752) have been independently tested and certified to meet 95kPa standards.
Each bag is:
- Leakproof, puncture, resistant and DOT/IATA/IMDG compliant
- Equipped with a unique barcode for full specimen traceability
- Fitted with an integrated document pouch for organized transport
- Designed for use with UN3373 outer packaging to create a compliant triple packaging system.
For U.S. businesses seeking UN3373 compliant packaging or a complete UN3373 shipping kit USA, our solutions provide both safety and operational efficiency.
Our UN3373 shipping kits include:
- Code 760 Postal Pack (designed for postal compatibility, uses BioBag 751)
- Code 761 Bioshipper 1 (accommodates up to four BioBag 751’s)
- Code 762 Bioshipper 2 (designed for larger quantities and cryovials, capable of holding multiple BioBag 752’s)
These systems form a complete Category B shipping kit compliant with P650 requirements.
Ensure Your 95kPa Bags Are What They Claim to Be
If your organization is reviewing suppliers or evaluating current UN3373 compliant packaging, take the time to verify 95kPa performance.
The right 95kPa biohazard bag is not just a procurement decision, it is a safeguard for:
- Personnel
- Patients
- Animals
- Laboratory integrity
- Regulatory compliance
For businesses in the United States shipping Category B biological substances, choosing properly tested 95kPa specimen transport bags is essential for compliant and responsible operations.
For more information about our UN3373 compliant triple packaging solutions or to request documentation, contact our team today.
Read more about our compliant Biohazard specimen bags here, or see our in-house 95 kPa pressure test video, proving our bags are 95kPa capable during a 30 mins pressure test.
