Sodium citrate 3.8% is dispensed for sedimentation test. Blood and liquid additive volume ratio is 4:1. This tube could not be used as the first tube to collect blood. Invert 5-6 times after blood collection. And the tube shall be inverted several times before experiment.
| Material | Spec（mm） | Volume（ml） | Label | Shelf life（year） | Package |
| Glass | 13*75 | 2、3、4 | Paper label | 2 | 100/1800 |
| PET | 13*75 | 2、3、4 | Paper label/UV Printing | 1 | 100/1800 |
