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How to identify samples using coloured flasks

30 de November de 2023
Laboratory glassware

The accurate identification of samples is of the utmost importance in science, especially in laboratories, in order to avoid errors and prevent cross-contamination. To address this challenge, Scharlab has developed volumetric flasks with coloured necks, designed to offer an effective, permanent solution.

Our volumetric flasks, available in capacities from 10 mL to 1000 mL, have the distinctive feature of coloured necks. The colour is not just superficial, but rather it is integrated into the glass itself. This guarantees permanent identification and exceptional resistance to the most aggressive chemicals, such as acids, bases and solvents.

Scharlau colored flasks to identify your samples

Advantages of flasks with coloured necks

The advantages of using flasks with coloured necks are numerous. Firstly, they enable simple and efficient identification of various samples and flasks in a laboratory. This distinction is crucial for different functions, including:

  1. Differentiation according to the analytical techniques applied.
  2. Classification according to the hazard of the reagents.
  3. Organisation based on the corresponding departments or research areas.
  4. Separation of specific types of samples.
  5. Preparation and management of reference standards.

The screen printing used to mark the colour on the flasks is highly resistant to chemicals, so the identification does not fade or degrade under chemically aggressive conditions or over time. The flasks are available in four different colours: red, blue, green and yellow. We can also screen print on any other piece of laboratory glassware and in other custom colours, expanding the possibilities and flexibility to organise and sort samples according to each laboratory’s requirements. 

In short, Scharlab flasks with coloured necks are an excellent tool for controlling samples safely and efficiently in your laboratory. 


For further information or to enquire about other products or services, please write to  helpdesk@scharlab.com.

volumetric flasks coloured neck