The Corning® PYREX® automatic buret has an automatic zeroing device and is available with either single or dual Rotaflo stopcocks for controlled filling. Greaseless Rotaflo® stopcocks allow smoother control avoiding titrating errors. Material: Corning® Borosilicate Glass Code 7740. Available in both 25mL and 50mL capacities.
Precision bore burets are permanently marked with an individual serial number and are supplied with a Certificate of Graduation Accuracy. Packed complete with a reservoir bottle, U-shaped drying tube, vented connecting tube, rubber squeeze bulb, # 1 one-holed rubber stopper and ¼ inch I.D. rubber tubing.
Calibrated to the accuracy requirements found in ASTM Specification E287, Class A requirements, these precision burets are permanently marked with an individual serial number and supplied with a Certificate of Graduation Accuracy.
Precision bore burets have a side filling tube with a separate stopcock to control liquid within the permanently attached reservoir, approximately 70mL in capacity. Calibrated to the accuracy requirements found in ASTM Specification E694.
KIMAX® Schellbach buret with a filling tube at the stopcock and an overflow tube at the top of the buret that accepts ¼-inch I.D. flexible tubing. Stopcock for all sizes is standard 2mm bore. Scale is durable black ceramic enamel.
This KIMAX® acidity test is used to determine the acidity of raw milk, cheese, whey and other dairy products. The supplied buret has a PTFE stopcock plug and is graduated with a durable white ceramic enamel scale from 0 to 1%, giving readings directly in percentage of acidity.
Nalgene® automatic self-zeroing acrylic buret is durable and easy-to-use. Nalgene® automatic buret is furnished complete with PMP stopcock Teflon® TFE plug 3 feet of plastic tubing and LDPE squeeze bottle with PP screwcap closure. Crystal-clear buret is safer than glass and offers repeatable accurate results. Individually calibrated to meet the accuracy requirements of ASTM E287. Unaffected by dilute mineral acids and bases except hydrofluoric acid and ammonium hydroxide. The pH range of 1-14 is ideal and up to 5% wt/wt of acids or 30% bases can be used. Buret is not designed for exposure to alcohol and organic solvents.
Scienceware® borosilicate glass burets features white graduations and are mounted to a polyethylene screw cap and bottle. Squeezing the flexible bottle forces liquid into the burette. An overfill drains back into bottle when pressure is released. The drain arm has a 2mm bore glass stopcock. Large, stable plastic base is separable from reservoir. The accuracy of these automatic burets is within 1% of total volume. Meets Class A specifications.
These self-zeroing automatic burets by Bel-Art® have easy to read blue graduations against a white background. The delivery end is fitted into a plastic push button stopcock that permits drop-by-drop delivery. A small screw clamp presets drop speed for repeat titration. A polyethylene filling tube extends from the top of the burette into the bottle reservoir. Bottle, screw cap, and round base are polyethylene. Graduation accuracy is Class B.