Ana yin valpp headpace vials an yi shi da borosilicate hydrochloric acid. Yana da m da kuma launi launi kuma na iya tsayayya da kewayon zafin jiki na -60 zuwa 200 digiri Celsius. Kullum magana, ƙarar kai na Vial ne 10-20ml, kuma hali ne na 22-20ml, kuma hali ne na 22.5 * 46 \ / 75mm. Aiwatar da acid shine acid, alkali tsayayya da yanayin zazzabi. Wagagging yawanci yakan tattara akwatin tashar jirgin ruwa na ciki.