PET Material: Made of high-purity polyethylene terephthalate (PET), offering excellent transparency, chemical stability, and mechanical strength.

Additive-Free: Contains no anticoagulants, clot activators, or separator gels, making it suitable for general biochemistry, immunology, and other tests requiring no special treatment.

Stable Negative Pressure: Facilitates smooth blood flow, reducing hemolysis or bubble formation.

Sterile & Pyrogen-Free: Complies with ISO 13485, GMP, and other medical standards to prevent contamination.

Serum biochemistry (e.g., liver function, glucose).

Immunoassays (e.g., ELISA, chemiluminescence).

Serum collection requiring natural clotting.