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Microtubes, Safe-lock Cap

Manufacturer: Kalstein
European Certification
Model: YR1012


Please see in the table below the technical parameters for the available models.

Capacity (Liters)


Microtubes are the ideal recipient to storage serums and blood samples in laboratories. They are useful for centrifugation, boiling and more. Kalstein products guarantee you no more worries about storing samples, no more leaks and no more evaporations.



There are three types of robust virgin polypropylene Microtubes with safe-lock cap, which is the perfect material for this type of uses. Virgin polypropylene is a thermoplastic that has a high resistant to temperatures due to its melting point of 130 degrees Celsius. On the other hand, these are also ultra-clear plastic microtubes, so storing these items is not going to be a problem for those who handle samples and have to run them through inspections in a laboratory.

These safe-lock microtubes have a flat cap with a beveled edge, which makes it more comfortable for opening and closing. In addition, the 0.5ml and the 1.5ml models, have a conical shape in the bottom, meanwhile the 2.0ml have a rounded bottom, so you have to keep an eye on that.  In the case of the labeling process, these microtubes have a frosted writing area on the tube so that you can write on it and it is easier for you to identify and store them. Another great feature is the clear molded graduations on tube for the 0.5ml, 1.5ml and 2ml models. They also have a flat top with a writable surface. These microtubes with safe-lock have a color-coded insert on the cap, but the rest of the tube is natural.  


Microtubes function

Another great feature is that they are autoclavable, in case you need to sterilize them. However, you also have the option to acquire RNase, DNase, DNA and Pyrogen sterilized microtubes so that you can use them without having to do that sterilizing process. The way to get it is by making a special request.

As you know, there are three different models of microtubes with snap cap. The first model is the 0.5ml; the package is 1000 units per zip bags and 10 bags per case. In the case of the 1.5ml model, there are 500 units per zip bag and 20 bags per case. Finally, there is the 2.0ml, with 500 units per zip bag and 10 bags per case. All of these three models come with molded graduations.

  • Manufactured from robust virgin-polypropylene, clarity for better visual inspection.
  • Safe-lock tubes provide outstanding stability, perfect sealing and protection from evaporation and accidental opening.
  • Flat cap with a beveled edge comfortable for opening and closing.
  • Frosted writing area on tube for labeling and writing.
  • Clear molded graduations on tube.
  • Flat top with a writable surface.
  • Mixed color tubes have color coded insert on cap, the rest of tube is natural.
  • Autoclavable.
  • RNase, DNase, DNA and Pyrogen free available upon required.


Parameters by Models