Graduated cylinders

Introduction to Graduated cylinders

Graduated cylinders are cylindrical liquid volume measuring instruments with graduation marks, used for measuring and pouring solutions in laboratories. This instrument serves various routine sample preparation and chemical formulation tasks, with two popular product lines: glass cylinders and plastic cylinders.

When purchasing, users should consider accuracy class A or class B according to technical standards such as DIN EN ISO 4788, ISO 6706, or USP. Depending on the application, laboratories can choose borosilicate glass 3.3 or plastic materials like PP and PMP with capacities of 5ml, 10ml, combined with design features such as a hexagonal base, embossed markings, or blue-printed graduations. Hoa Viet distributes measuring cylinders from manufacturers including Aptaca, Assistent, Duran, Hirschmann, Kimble-DWK, and Vitlab.

What is the difference between Class A and Class B graduated cylinders?

Class A cylinders offer higher accuracy with tighter error limits, typically complying with DIN EN ISO 4788 or USP standards. Class B cylinders allow higher error limits according to standards such as DIN 12681 / ISO 6706, suitable for general measurement needs.

What temperature precautions should be noted when using PP plastic graduated cylinders?

PP plastic graduated cylinders can withstand thermal stress up to 80 °C while maintaining error limits; some types can be autoclaved at +121 °C and used continuously at +100 °C. However, for types with printed graduations, users should not clean them at temperatures exceeding 60 °C to preserve the markings.

What are the characteristics of borosilicate 3.3 glass graduated cylinders?

Borosilicate 3.3 glass features excellent thermal and chemical resistance, meeting stringent analytical standards. This product line typically features a hexagonal anti-tip base and is calibrated to contain (TC, In).

Which brands of graduated cylinders does Hoa Viet currently supply?

Hoa Viet distributes genuine graduated cylinders from Aptaca (Italy), Kimble-DWK (USA), and German manufacturers including Assistent, Duran, Hirschmann, and Vitlab. Customers can contact Hoa Viet directly for detailed technical advice.