Complies with ASTM Specification E890. Manufactured from borosilicate glass 5.1. 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. Trays are shrink-wrapped in plastic film, with tubes remaining in constant alignment for protection against in-transit breakage and contamination.
