What Is and How to Choose Non-Sterile Pipette Tips

Non-sterile pipette tips are an indispensable tool in the hands of experimenters. Appropriate pipette tips can not only reduce the loss of pipettes but also improve the accuracy of experimental results. Here are some introductions to these non-sterile tips.

Non-Sterile Pipette Tips

Non-sterile Pipette tips size:

  • In general, in most lab consumable supplier companies, such as Hawach company, supply the volume of non-sterile tips is 10µL, 200µL, 300µL, 1000µL, etc.
  • And different specifications of non-sterile tips have different lengths and calibers, but some of the same specifications of these pipette tips have exactly the same length.


  • Tips with non-sterile are disposable consumables that come into direct contact with liquid samples and are made with PP material.
  • And without a plasticizer release agent to the otherwise soluble matter will affect the experimental results

Feature of Non-sterile tip:

polypropylene pipette tips

  • No RNA, DNase, no heat source, ensure the integrity of the sample when moving, no pollution, no denaturation.
  • Using USP-Class VI standard polystyrene raw materials, GMP100,000 clean workshop production
  • And with a smooth inner wall, high-temperature resistance, less residual liquid
  • In Hawach, supply bulk package packaging to meet customer needs
  • And effectively avoid cross-contamination between samples caused by aerosol to match the pipettes of various brands and models on the market
  • Especially tips with non-sterile can save the number of samples and reagents and improve the accuracy of experimental operations
  • Adapt to the absorption of various organic solvents, and various pipettes
  • The product complies with the country’s health standards and has passed the certification with no cytotoxicity, pyrogen-free.
  • And the inner wall is smooth without flow marks, and the tip has no notch burrs, otherwise, it will lead to inaccurate drainage
  • In addition,  material. At present, the tips with non-sterile on the market are basically made of polypropylene plastic (a colorless and transparent plastic with high chemical inertness and a wide temperature range).
  • However, people usually make non-sterile pipette tips in different kinds of polypropylene: high-quality tips are often made from natural polypropylene, while cheaper tips may use recycled polypropylene plastic
  • Pipette tips with non-sterile will not affect the accuracy of the pipetting results


  • Designed non-sterile pipette tips for a variety of pipetting applications in molecular biology, cell culture, clinical laboratories, and more.
  • The most commonly used type of tip is the non-sterile. And used in laboratory applications where sterility is not critical to the experiment or test being performed.
  • In addition, widely used in molecular biology, gene sequencing, bioengineering, medicine, hospital clinical testing, and many other fields.
  • Sterilized tips are usually boxed to prevent contamination. The concept of sterility refers to the absence of contamination from other microorganisms, such as fungi, bacteria, etc., the most difficult spores to discharge, unsterilized is the opposite
  • And used for the experimental that avoids the presence or dissolution of fo reign biological contaminants to directly affect the analytical results

How to choose the  Non-sterile Pipette tip :

10ml pipette tips

1. Weigh the sample volume

After rinsing the tips, repeat the sample loading procedure several times, weighing the sample each time and recording the reading. Calculate pipetting precision after converting test solution density to volume

2. Outer packaging inspection

The packaging should be intact and clearly marked.

3. Tip detection

  • Check whether the suction head is deformed or damaged, and use a suitable sampler to suck up an appropriate amount of liquid to see if there is air leakage, suction hole blockage, or air leakage.
  • After excluding the pipette factor, if there is any abnormality, that is, the batch of tips does not meet the experimental requirements of this laboratory.


There are also introduces about the function of disposable pipette tips, what is sterile filtered pipette tips, etc.