51 expansion borosilicate glass offers excellent chemical resistance against sodium leaching, a factor common in soda lime glass products
· Tubes are packed in convenient trays for ease of use on bench tops and in drawers
· The 6 x 50 mm size is often referred to as a “Durham tube”
· Trays are shrink-wrapped in plastic film, with tubes remaining in constant alignment for protection against in-transit breakage and contamination
· No marking spot
· Designed from ASTM Specification E890
· Manufactured from 51 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements