# McKesson Test Tubes

The McKesson Test Tubes collection features a variety of test tubes crafted from premium materials, including polystyrene, polypropylene, and borosilicate glass, to meet diverse laboratory needs. These test tubes are designed with precision to ensure reliable performance in various scientific applications.

## General Features

McKesson Test Tubes are available in various configurations and are ideal for multiple laboratory uses. They are designed for clarity and robustness, offering excellent chemical resistance and durability. The tubes are nongraduated, with round bottoms and no color coding, ensuring ease of use and compatibility with a variety of laboratory processes.

## Material Specifics

### Polystyrene Test Tubes
These tubes are made from premium-grade polystyrene, providing clarity and the ability to withstand centrifugation speeds up to 3,000 RPM. They have a brittleness temperature of 20° C and a maximum operating temperature of 90° C.

### Polypropylene Test Tubes
Constructed from high-quality polypropylene, these tubes are also designed to withstand centrifugation speeds of up to 1,500 RPM while maintaining clarity and robustness.

### Glass Test Tubes
Crafted from superior borosilicate glass, these chemically inert tubes offer excellent chemical resistance, reducing the risk of pH changes and contaminants. They are suitable for tissue culture and blood bank use and come with round bottoms and fire-polished rims.

## Dimensions and Capacity

Various sizes are available, including 12 x 75 mm and 13 x 100 mm, accommodating volumes of 5 mL and 7 mL, respectively. Each tube type is produced under strict dimensional controls to ensure uniform results.