BURETS
46
Educational / Tutwiler / Schellbach
Educational-Grade Burets These economical and versatile burets are ideal for use in educational institutions and for many general laboratory procedures.
Reservoir Fill Buret
14612F
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17030K supplied with a glass stopcock plug Easy-to-read durable black enamel scale for 17030K and 17021H-50 17121H supplied with a PTFE threaded stopcock assembly and a precision ground tip 17021H supplied with a PTFE compression fit stopcock assembly and a precision ground tip 17021H, 25 mL buret has a permanent brown stained scale
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KIM-KAP™ dust cap is included
Funnel fill style buret
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements The stopcock assemblies for the 17121H and 17021H series burets should be wetted before installation.
Stopcock Assembly
17170F
Part Number
Capacity (mL)
Case Qty
17121H-25 17121H-50 17021H-25 17021H-50
25 50 25 50
PTFE threaded PTFE threaded
1 1 6 6
Schellbach Burets Schellbach burets employ a blue line on a broader white band running vertically behind the scale to create an optical effect which causes the meniscus to assume an apparent form. This assists in avoiding parallax mistakes.
PTFE compression fit PTFE compression fit
Replacement Parts
Part Number
Description
Case Qty
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Supplied with a chemically-resistant, self- lubricating PTFE stopcock plug and a KIM-KAP™ dust cap Replacement 2 mm straight bore PTFE stopcock plug is 821001-0002 for 17150F series burets Replacement 2 mm three-way PTFE stopcock plug is 823001-0002 for 17170F series burets 17150F series burets are funnel fill and are supplied with a chemically-resistant, self- lubricating PTFE stopcock plug and a KIM-KAP™ dust cap 17170F series burets have an automatic zero with overflow tube, and are reservoir-filled, with both top and bottom hose adapters accepting ¼” ID flexible tubing Easy-to-read durable black ceramic enamel scale
25 mL Buret Barrel without Stopcock or Assembly Tip 50 mL Buret Barrel without Stopcock or Assembly Tip 2.8 mm PTFE LUBRI-FLO® Stopcock for Use with 17021H, 17800, 17810 and 29050H 2.8 mm PTFE LUBRI-FLO® Stopcock for use with 29053H and 17121H Threaded Buret Tip for 17021H and 17121H Burets
17021J-25
6
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17021J-50
6
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41006F-2
1
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41007F-2
1
17034H-99
6
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Tutwiler Gas Burets This buret is designed for use with high sulfur content gas streams.
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Designed from ASTM Specification E287 requirements
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Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements Instructions for use: The meniscus is read at the narrowest point of the blue line just above the true meniscus. The meniscus of automatic zero burets must be read at the narrowest point of the blue line. Conventional Shellbach burets can be read using either the true or apparent meniscus; however, the same method must be used for both initial and final settings
17150F
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Large ID connections reduce clogging when sulfur precipitates out and deposits on the inside of connectors Supplied with a size 4 glass stopcock in the bottom, a size 2 stopcock in the top and a size 13 glass pennyhead stopper
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Designed for use with method UOP 9-85
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Capacity; Tolerance (mL)
Overall Length (mm)
Part Number
Case Qty
17150F-25 17150F-50 17170F-25 17170F-50
25; ±0.06 50; ±0.10 25; ±0.06 50; ±0.10
571 738 594 754
1 1 1 1
Capacity; Tolerance (mL)
Overall Length (mm)
Part Number
Case Qty
30034A-100
100; ±0.15
480
1
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