Class B Burets

Photo of Corning 2122A PYREX® Colored Scale Dispensing Burets with Straight Bore PTFE Stopcock

These PYREX® burets are suitable for use in school and institutional laboratories not requiring the accuracy of our Class A models. Supplied with a Product Standard Polytetrafluorethylene (PTFE) stopcock plug to reduce freezing and eliminate lubricant contamination. The microfinish of the barrel provides a precision fit. The tips are carefully drawn for accuracy to insure proper drainage rate. Each buret is supplied with a dust cover and has a permanently colored scale. All sizes furnished with a 2mm bore stopcock plug.

Photo of Kimble KIMAX 17026F Class B Buret with Straight Bore PTFE Stopcock & Dust Cap

Kimble KIMAX 17026F Class B Burets with Straight Bore PTFE Stopcock & Dust Cap are used in general purpose volumetric analysis and titrations where Class B tolerances are appropriate.  Easy-to-read durable black ceramic enamel scale. Designed from ASTM Specification E287, Class B requirements. Calibrated to the accuracy requirements found in ASTM Specification E542. Ref: ASTM Method D974. Replacement 2 mm straight bore PTFE stopcock plug is 821001-0002.

(Sample Photo Displayed. Individual items may differ from the image shown)

 

Photo of KIMBLE® 17033F KIMAX® RAY-SORB® Amber Glass Buret w/PTFE Stopcock and Dust Cap, Class B

KIMBLE® 17033F KIMAX® RAY-SORB® Amber Glass Buret w/PTFE Stopcock and Dust Cap are used in titrations containing light sensitive analytes. Less than 1% transmission below 400nm and approximately 5% transmission from 400-600nm. Supplied with a chemically-resistant, self-lubricating PTFE stopcock plug and a KIM-KAP dust cap. Funnel fill style buret. Easy-to-read durable opaque white ceramic enamel scale.  Replacement 2 mm straight bore stopcock plug is 821001-0002. Manufactured to the specifications found in ASTM E694.