ASTM Class B Borosilicate Glass Volumetric Flask with Glass Stopper, Blue Graduations Included_Chain Cylindrical dropping funnel in borosilicate

Cylindrical dropping funnel in borosilicate glass holds 50mL with PTFE stopcock

the documented-purity strong base for pH adjustment

providing clear visibility of tube contents across stacked rows during experiments and storage

fold-over sealing

Ten-piece set distributes matched evaporating dishes across a full class or high-throughput lab where parallel evaporation at student stations is required

ASTM Class B Borosilicate Glass Volumetric Flask with Glass Stopper, Blue Graduations Included_Chain Cylindrical dropping funnel in borosilicateGround glass stopper pairs with an ASTM compliant Class B body for routine stock solution preparation in teaching labs and analytical exercises.