sample storage vials EPA VOA vials for laboratory Amazon 100pcs EP Scientific Clear EPA VOA Open Top Vials, 40 mL Thomas Scientific 9-093-2 Clear Borosilicate Glass VOA Vial with White Polypropylene 24-414mm Open Top Closure and 0.100" PTFE/Silicone Septa, Precleaned, 60mL Capacity (Pack of 72)