Test Tubes Round or Flat Bottom, with or without rim, Graduated, Borosilicate Glass

Glass Agencies supplies precision Test Tubes constructed from rugged borosilicate glass, which provides superior thermal and chemical resistance. Round-bottom and flat-bottom test tubes are supplied, the latter optionally as rimmed or rimless tubes to accommodate different laboratory requirements. Optional gradations are marked on each tube for accurate measurements, so they are suitable for regular testing, heating, mixing, or chemical reaction in scientific, educational, and industrial laboratories. Made to high quality standards, our test tubes provide excellent clarity, consistent wall thickness, and thermal shock resistance. Used by laboratories all over the world, Glass Agencies ensures consistent performance, accuracy, and longevity with every item.