The tubes are designed for blood The tubes are designed for blood LYBCON Vacutainer sedimentation without the use of sedimentation pipettes. The blood is taken directly into the tubes and LYBCON Vacutainer turned end-over-end 8-10 times. Immediately before the tubes are placed in the stand for measurement, LYBCON Vacutainer the tubes must be mixed again. After one or two hours the results are read. The stand holds a LYBCON Vacutainer maximum of 10 tubes and has a height Lybcon adjustable zero mark. The measurement results achieved correspond to the Westergren method. MIXING RECOMMENDATION ESR (Erythrocyte Sedimentation Rate) tubes should be gently inverted 180 and back 8-10 times. SPECIFICATION Specimen: Whole Additive: Sodium citrate 3.8% (4NC) Cap color: Black Tube Size: 13x75mm Draw Volume: 1.6mL, 1.8mL Max. draw volume Tolerance: ±10% sedimentation without the use of sedimentation pipettes. The blood is taken directly into the tubes and LYBCON Vacutainer turned end-over-end 8-10 times. Immediately before the tubes are placed in the stand for measurement, LYBCON Vacutainer the tubes must be mixed again. After one or two hours the results are read. The stand holds a LYBCON Vacutainer maximum of 10 tubes and has a height LYBCON Vacutainer adjustable zero mark. The measurement results achieved correspond to the Westergren method. MIXING RECOMMENDATION ESR (Erythrocyte Sedimentation Rate) tubes should be gently inverted 180 and back 8-10 times. SPECIFICATION Specimen: Whole Additive: Sodium citrate 3.8% (4NC) Cap color: Black Tube Size: 13x75mm Draw Volume: 1.6mL, 1.8mL Max. draw volume Tolerance: ±10%