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• For lyophilisation applications, reinforced bottom • Internal rim with a throat ensures good closing with the Snap-on caps • Supplied in retractable packaging to reduce contamination from dust • Borosilicate glass with low rates of extractables (standards ASTM Type I Class A and USP type I)
Serum bottles (or penicillin flasks) made from transparent KG-33 or amber 203 borosilicate glass. They are capped using a rubber cap or aluminium capsules