Disposable Medical Black Cap ESR Vacuum Blood Collection Tube

Disposable Medical Black Cap ESR Vacuum Blood Collection Tube. Specialized ESR Application: Designed for Automated Erythrocyte Sedimentation Rate Analyzers using Westergren method. Precise Mixing Ratio: Requires 1 part sodium citrate to 4 parts blood for accurate anticoagulation. Two-Year Quality Guarantee: Comprehensive quality assurance period covering two years from purchase. Vacuum Blood Collection: Utilizes negative pressure for efficient blood collection in glass or PET tubes. Proper Mixing Protocol: Requires 6-8 inversions to prevent hemolysis and ensure test accuracy. Strict Storage Requirements: Must store in dry, clean rooms with humidity under 80% and no corrosive gas. Flexible Payment Terms: Accepts LC, T/T, and Western Union for international transactions.