1. Types of plastics
There are more than a dozen types of plastic products, such as: PVC PE PP PC PS ABS resin PA PET etc.
2. PET plastic composition
The composition of PET plastic: polyethylene terephthalic acid, polyethylene terephthalate.
3. Not all plastic tubes are suitable for vacuum blood collection tubes, which are related to the following aspects:
(1) Strong stability: it must be a material with strong drug resistance, that is, it is not prone to chemical reactions;
(2) Strong compatibility with the human body: that is, it does not chemically react with substances in the human body:
(3) It is necessary to choose low moisture permeability and air permeability: to maintain the recording and negative pressure of the additive;
(4) Easy to disinfect and sterilize;
(5) Easy to burn: Compared with glass blood collection tube;
(6) Freezing resistance: can be frozen at -20℃. But pay attention to the problem of hemolysis.
