Certified Vial Kit, Low Adsorption (LA) CD™ (Center Drain) vial. Certified Vial Kit, Low Adsorption (LA) CD ™ (Center Drain) vial. Product Number. Product Description. SDS. 29655-U. volume 1.5 mL, CD (Center Draining) Vial, clear glass vial, natural PTFE/silicone septa, thread for 9 mm, pkg of 100 ea.