1、 The red safety head cover is generally used for additive free tubes

2、 The yellow safety head cover is generally used in the separation gel coagulant tube

3、 The orange safety head cover is generally used in the coagulation promoting tube

4、 Light green safety head cover is generally used in heparin lithium tube

5、 Green safety head cover is generally used in heparin sodium tube

6、 The blue safety head cover is generally used in the blood coagulation tube

7、 Purple safety head cover is generally used in blood routine tube

8、 Gray safety head cover is generally used in blood glucose tube

9、 The black safety head cover is generally used for dynamic blood sedimentation tube

10、 The black safety head cover is generally used in the blood sedimentation tube