Everything You Need to Know About Specimen Bags – Safety, Compliance, and Custom Solutions

In medical, laboratory, and pharmaceutical logistics, the safe transport of biological specimens is non‑negotiable. One small leak or breach of packaging can lead to contamination, infection spread, or regulatory fines. That is why choosing the right specimen bag – one that meets international standards – is critical for any facility handling human or animal samples.

Why Certification Matters

Not all specimen bags are created equal. The most reliable bags carry UN 3373 certification, which means they are approved for transporting “Biological Substance, Category B” materials. This certification ensures the bag can withstand pressure, temperature changes, and physical stress during shipping. A 95 kPa certified bag – often paired with UN 3373 – has passed a hydrostatic pressure test, proving it will not leak under a pressure differential of 95 kilopascals. This is the gold standard for air and ground transport.

IATA Compliance for Air Transport

When specimens travel by air, IATA (International Air Transport Association) rules apply. A Large IATA specimen bag or Small IATA specimen bag must meet specific size, sealing, and labeling requirements. As a reliable IATA specimen bag supplier, we offer both sizes to fit everything from a single swab to multiple urine cups or stool containers. Each bag features clear biohazard markings, document pouches, and tear‑resistant materials.

Key Products in Our Range

• AI 650 Biohazard Specimen Bag – A popular model with a built‑in absorbent pad, ideal for Category B samples.

• Stool Specimen Transport Bag – Designed with extra thickness and a secure zipper lock to contain odor and moisture.

• Urine Specimen Transport Bag – Leak‑proof, tamper‑evident, and available with a separate documentation pocket.

• Custom Biological Specimen Transport Bags – Tailored to your size, printing, and absorbent material requirements.

Why Choose a Certified Factory?

Working with a certified specimen bag factory gives you:

• Consistent quality control

• Full documentation for audits (ISO, UN, IATA)

• Competitive wholesale pricing

• The ability to order custom biological specimen transport bags with your logo or instructions

As a qualified 95 kPa bag factory and UN 3373 Specimen Bag manufacturer, we ensure every bag leaving our facility is tested and compliant. We also serve as a stool specimen transport bag supplier and urine specimen transport bag distributor for hospitals, labs, and home healthcare providers.