10ml Amber Glass Headspace Vials for Aijiren. 10ml,22.5ⅹ46mm,20ml,22.5ⅹ75mm, DM18. Material: USP1, Borosilicate Glass. Box packaged tpo minimize sample bottle damage. Manufactured under strict quality, which ensures dimensional consistency from lot-to-lot. Suitable for headspace analysis of volatile solids and gases.