ASTM Class A Borosilicate Glass Volumetric Flask with Glass Stopper, Blue Graduations Capacity:250mL and everyday warm-beverage service

and everyday warm-beverage service

Used to euthanize insects without damaging delicate body parts during specimen preparation

charging battery with motor-generator #1

Amino acid chromatography kit separates protein building blocks using paper chromatography techniques with 500g chemical supply for comprehensive analysis experiments

ASTM Class A Borosilicate Glass Volumetric Flask with Glass Stopper, Blue Graduations Capacity:250mL and everyday warm-beverage serviceSingle blue graduation mark on a Class A borosilicate glass volumetric flask with a solid glass No. 9 stopper, compliant with ASTM E288 for analytical solution preparation.