These ampules are pre-scored to eliminate filing. Stems are the correct length for full sealing. If preferred, ampules can be tip sealed. Gold band identifies pre-scored location on neck. Made of Wheaton brand borosilicate glass. NOTE: 50ml vial has a one-point break instead of pre-scored.
Canadawide Scientific est une entreprise canadienne détenue à 100 % qui dessert les communautés scientifiques et industrielles partout au Canada depuis 1976.