16x150mm Borosilicate Glass Test Tubes with Cork Stoppers

Overview

A cork stopper seals each of these Karter Scientific borosilicate test tubes, supplied pre-assembled in a pack of ten tubes and ten corks. The tubes are a common narrow size.

The reason to buy is the matched set of tubes and stoppers in one pack, in a common size. The limitation is the sparse listing, with no heat rating, wall thickness or rim style stated, and cork is not an airtight closure.

Who it's for

Teaching labs and experiments that store or mix small samples and want stoppers included. Work that needs sealed, sterile or heat-rated tubes should use screw cap or certified ware.

Pros and cons

Performance notes

Borosilicate glass resists temperature changes better than ordinary glass, which suits gentle warming of small samples. The cork seals loosely, so it holds contents in place but does not guard against vapor loss.

Specifications