Pyrex^® Burettes, Schellbach, class AS with PTFE key

• Complies with ISO 385
• Graduations and inscriptions in blue enamel
• With funnel top to make filling easier and safer
• Each burette has a +30s waiting time before final reading can be taken
• Manufactured from chemically resistance borosilicate glass
• Grease-free interchangeable PTFE key with 1.5mm bore

Schellbach burette tube with vertical white stripe and central blue ribbon

• Facilitates accurate reading of meniscus
• exact position of the meniscus is clearly defined where the blue ribbon splits into a wide and narrow band

• Complies with ISO 385• Manufactured from chemically resistance borosilicate glass• With funnel top to make filling easier and safer• Each burette is fitted with fluted funnel top.• Schellbach burette tube with vertical white stripe and central blue ribbon - Facilitates accurate reading of meniscus - exact position of the meniscus is clearly defined where the blue ribbon splits into a wide and narrow band• Each burette has a +30s waiting time before final reading can be taken• Grease-free interchangeable PTFE key with 1.5mm bore• Graduations and inscriptions in blue enamel

PYREX is a registered trademark of Corning, Inc.