The Essential Leakproof Layer in 95kPa Specimen Transport Systems

In the medical packaging industry, absorbent pads are a mandatory component for the safe and compliant transport of biological specimens. When paired with 95kPa transport bags, these pads serve as a critical secondary barrier, instantly absorbing any liquid that may escape from primary receptacles during transit.

Why Absorbent Pads Matter

According to UN3373 and P650 packaging instructions, any liquid specimen shipped as Biological Substance Category B must be packaged in a triple-layer system: a primary receptacle, a secondary leakproof packaging (such as a 95kPa bag with absorbent), and a rigid outer package. The absorbent pad is what prevents a minor leak from becoming a major contamination event.

Common specifications include pads capable of absorbing 50ml, 100ml, 200ml, 350ml, and large-format pads with absorption capacity of 400ml or more. For multi-tube shipments, segmented absorbent pouches – such as 2-Bay, 4-Bay, and 7-Bay absorbent pockets – keep each sample tube separated, reducing breakage risk and providing cushioning during transport.

Key Product Options

• White Sample Absorbent Pad – 65mm × 70mm, 30ml absorbency, ideal for small diagnostic kits

• 95kPa Absorbent Pad – Designed to integrate seamlessly with 95kPa transport bags

• 4-Bay / 7-Bay Absorbent Pocket – For multi-tube blood and urine transport systems

• Absorbent Pouch OEM – Custom sizes, absorbency levels, and branding available

Compliance & Testing

High-quality absorbent pads and pouches are manufactured to meet DOT, IATA, and ICAO regulations. When used inside a 95kPa transport bag, the complete packaging system is tested to withstand a 95 kPa (approximately 14 psi) pressure differential without leakage. This certification ensures that specimens – whether blood, urine, tissue, or swab samples – arrive at their destination safely and in compliance with international shipping standards.

Factory Direct Supply

As a specialized absorbent pad factory, we provide OEM and bulk supply for diagnostic laboratories, hospitals, and medical distributors worldwide. Our absorbent pouches and pads are available in standard and custom configurations to match any 95kPa bag system.