Slender ESR Blood Collection Tubes

Tailored for clinical erythrocyte sedimentation rate (ESR) assays to aid screening for inflammatory and immunological disorders, this tube complies with the Westergren testing standard.

Preloaded with 3.8% balanced sodium citrate additive, it maintains a constant 4:1 proportion between blood sample and anticoagulant, delivering consistent, precise sedimentation readings.

Identified by a black top cap, this product line covers capacities ranging from 1.28 mL up to 10 mL, with three mainstream tube dimensions: 13×75 mm, 13×100 mm and 16×100 mm.

Its test outcomes show strong consistency against benchmark data obtained from conventional

Designed specifically for erythrocyte sedimentation rate assays, this ESR tube pairs seamlessly with our matching ESR analyzer. The whole sampling and testing workflow can be carried out within a single tube, eliminating the need for specimen transfer.

Crafted with a slender 8×120 mm body, it is offered in two fill volumes: 1.28 mL and 1.6 mL. Calibration blue marking lines are printed on the tube wall to align precisely with the scale of the supporting ESR device.

Test specifications: ambient lab temperature should stay between 8 °C and 25 °C; all analyses must be finished within 6 hours post blood draw. Leave the tube standing upright for 60 minutes before recording sedimentation outcomes.

Our matching ESR fixture adopts an organic glass framework, enabling rapid tube clamping. It keeps specimens fully vertical during incubation and features adjustable horizontal calibration for accurate readings.