Kimble® Mark-M™ Test Tube Plain 9 mL Without Closure Glass Tube

Features

• Kimble® Mark-M™ glass culture tubes feature a permanent vertical ceramic label
• fused to the glass
• which is easily written on with marker or pencil Borosilicate glass tubes have excellent chemical resistance against sodium leaching Permanent ceramic labels are located 3/4 Inch from the open end and are available in a variety of colors All tubes have sturdy
• uniform bottoms and consistent lengths Manufactured from 51 expansion borosilicate glass conforming to USP Type I and ASTM E438
• Type I
• Class B requirements