21 Most Wanted Polyethylene Stoppers

 

Lab-Grade Glass Dewar Flask vented polyethylene stopper 655 mL

Lab-Grade Glass Dewar Flask, vented polyethylene stopper, 655 mL

Lab-Grade Glass Dewar Flask, vented polyethylene stopper, 655 mL - Weighted base reduces spillage. Flask dimensions will also be a consideration for those with storage limitations. Dewar flasks, or vacuum flasks, hold and transport liquid gases. Vented polyethylene stopper (included) minimizes evaporation. Annealed borosilicate glass reduces risk of flask implosion. 2″. Look for dewar flasks that feature high performance construction and advanced insulation materials to ensure high thermal efficiency. Easy-grip handles make it more convenient to move the liquid nitrogen containers to where you need them. In labs, dewar flasks are used for cryogenic storage and other processes requiring an extremely low temperature. All dimensions are ±0. Highly efficient laboratory-grade dewars feature low heat conductivity and high vacuum. Resilient plastic mesh covering cushions the flask and ensures a firm grip. This insulated flask is available in various shapes and volume capacities.

 

5000 mL Volumetric Flask Class A with 3435 Polyethylene Stopper

5000 mL Volumetric Flask Class A with #34/35 Polyethylene Stopper

5000 mL Volumetric Flask Class A with #34/35 Polyethylene Stopper - Fits a size #34/35 stopper, included. Flasks are manufactured to conform to federal specifications nnn-f-289 for type 1, class a unserialized flasks and astm e-288. Note item cg-1602-20 conforms to iso 1042, din 12664 class a flasks and is a duran product. Approx. 380mm height flask, volumetric, class a, with closed bottom polyethylene stopper.

 

500 mL - VWR Volumetric Flask with Polyethylene Stopper Class A

500 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A

500 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A - Durable white color printing which has good life in laboratory environment. Made from astm e438 type 1 class a borosilicate 33 expansion glass as per astm specification e237 and e288. Borosilicate glass fabrication polyethylene stopper construction durable white marking spot they feature a single graduation ring and polyethylene stopper with marking spot. These volumetric flasks are batch certified and are calibrated at 20 degrees celsius to contain.

 

250 mL - VWR Volumetric Flask with Polyethylene Stopper Class A

250 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A

250 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A - Durable white color printing which has good life in laboratory environment. These volumetric flasks are batch certified and are calibrated at 20 degrees celsius to contain. Made from astm e438 type 1 class a borosilicate 33 expansion glass as per astm specification e237 and e288. Borosilicate glass fabrication polyethylene stopper construction durable white marking spot they feature a single graduation ring and polyethylene stopper with marking spot.

 

Chemglass CG-1602-03 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 9 Class A 25 mL

Chemglass CG-1602-03 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 9, Class A, 25 mL

Chemglass CG-1602-03 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 9, Class A, 25 mL - Supplied complete with one solid glass penny head stopper. The mixing bulb contains approximately one tenth of the flask capacity and aids in the mixing or dissolving of the flask contents. Similar to cg-1600 but with the addition of a mixing bulb between the calibration line and the stopper.

 

100 mL - Volumetric Flasks with ST Polyethylene Stopper Class A Hirschmann

100 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann

100 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann - Graduated to contain. Flasks feature a fine white graduation line and marking spot. Flasks include a [st] polyethylene stopper. Meet astm e288, class a requirements.

 

Kimax Raysorb Borosilicate Glass Class A Heavy Duty Wide Mouth Volumetric Flasks with Polyethylene Stopper - 008ml Tolerance 20mL Capacity Case of 6

Kimax Raysorb Borosilicate Glass Class A Heavy Duty Wide Mouth Volumetric Flasks with Polyethylene Stopper, +/- 0.08ml Tolerance, 20mL Capacity (Case of 6)

Kimax Raysorb Borosilicate Glass Class A Heavy Duty Wide Mouth Volumetric Flasks with Polyethylene Stopper, +/- 0.08ml Tolerance, 20mL Capacity (Case of 6) - Quick identification with large, permanent, easy-to-read, markings. Accuracy, graduated to class a volumetric tolerances. Flat interior bottoms for stirring with standard stir bars. Superior strength, durability and safety from heavy, uniform walls. Pipet access is easy with wide-mouth volumetric flasks.

 

Chemglass CG-1602-05 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 13 Class A 100 mL

Chemglass CG-1602-05 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 13, Class A, 100 mL

Chemglass CG-1602-05 Series CG-1602 Volumetric Flask with Outer Polyethylene Stopper Neck Size 13, Class A, 100 mL - The mixing bulb contains approximately one tenth of the flask capacity and aids in the mixing or dissolving of the flask contents. Supplied complete with one solid glass penny head stopper. Similar to cg-1600 but with the addition of a mixing bulb between the calibration line and the stopper.

 

Volumetric Flask 2000 mL One Mark Polyethylene Stopper Class A Lot Certified

Volumetric Flask, 2000 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified

Volumetric Flask, 2000 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified - Superior strength, durability and safety from heavy, uniform walls. Quick identification with large, permanent, easy-to-read, markings. Pipet access is easy with wide-mouth volumetric flasks. Accuracy, graduated to class a volumetric tolerances. Flat interior bottoms for stirring with standard stir bars.

 

1000mL Glass Separatory Funnel wPTFE Stopcock and Polyethylene Stopper

1000mL Glass Separatory Funnel w/PTFE Stopcock and Polyethylene Stopper

1000mL Glass Separatory Funnel w/PTFE Stopcock and Polyethylene Stopper - An adjustable plastic nut on one side of the stopcock allows for adjustments of how easily the stopcock rotates. Unlike traditional glass stopcocks, those made from ptfe are not nearly as prone to freezing or seizing up within the stem of the separatory funnel. This is a 1000ml (1l) conical pear shaped separatory funnel, made of heat resistant borosilicate glass. It features a chemically resistant polyethylene stopper at the top, and a ptfe stopcock. Additionally, they do not require any expensive lubricants, which greatly reduces the risk of contaminating the liquids being run through the funnel.

 

Volumetric Flask 20 mL One Mark Polyethylene Stopper Class A Lot Certified

Volumetric Flask, 20 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified

Volumetric Flask, 20 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified - Enlarged top of the stopper will protect the neck if the flask is tipped over. Volumetric flask with a graduated ring blasted on the neck. Supplied with a polyethylene stopper fitting the standard taper ground neck. This flask is a test tube shape, with a marking spot on 1l. Calibrated to contain.

 

Lab-Grade Glass Dewar Flask vented polyethylene stopper 1000 mL

Lab-Grade Glass Dewar Flask, vented polyethylene stopper, 1000 mL

Lab-Grade Glass Dewar Flask, vented polyethylene stopper, 1000 mL - Flask dimensions will also be a consideration for those with storage limitations. Dewar flasks, or vacuum flasks, hold and transport liquid gases. Look for dewar flasks that feature high performance construction and advanced insulation materials to ensure high thermal efficiency. Highly efficient laboratory-grade dewars feature low heat conductivity and high vacuum. 2″. All dimensions are ±0. This insulated flask is available in various shapes and volume capacities. In labs, dewar flasks are used for cryogenic storage and other processes requiring an extremely low temperature. Weighted base reduces spillage. Easy-grip handles make it more convenient to move the liquid nitrogen containers to where you need them. Annealed borosilicate glass reduces risk of flask implosion. Vented polyethylene stopper (included) minimizes evaporation. Resilient plastic mesh covering cushions the flask and ensures a firm grip.

 

5 mL - VWR Volumetric Flask with Polyethylene Stopper Class A

5 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A

5 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A - Borosilicate glass fabrication polyethylene stopper construction durable white marking spot they feature a single graduation ring and polyethylene stopper with marking spot. Made from astm e438 type 1 class a borosilicate 33 expansion glass as per astm specification e237 and e288. Durable white color printing which has good life in laboratory environment. These volumetric flasks are batch certified and are calibrated at 20 degrees celsius to contain.

 

100 mL - VWR Volumetric Flask with Polyethylene Stopper Class A

100 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A

100 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A - Made from astm e438 type 1 class a borosilicate 33 expansion glass as per astm specification e237 and e288. Durable white color printing which has good life in laboratory environment. Borosilicate glass fabrication polyethylene stopper construction durable white marking spot they feature a single graduation ring and polyethylene stopper with marking spot. These volumetric flasks are batch certified and are calibrated at 20 degrees celsius to contain.

 

Volumetric Flask 200 mL One Mark Polyethylene Stopper Class A Lot Certified

Volumetric Flask, 200 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified

Volumetric Flask, 200 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified - Volumetric flask with a graduated ring blasted on the neck. Calibrated to contain. This flask is a test tube shape, with a marking spot on 1l. Supplied with a polyethylene stopper fitting the standard taper ground neck. Enlarged top of the stopper will protect the neck if the flask is tipped over.

 

Volumetric Flask 250 mL One Mark Polyethylene Stopper Class A Lot Certified

Volumetric Flask, 250 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified

Volumetric Flask, 250 mL, One Mark, Polyethylene Stopper, Class A, Lot Certified - Volumetric flask, one mark, ground polyethylene stopper, lot certified  volume 250 ml tolerance +/- 0. 3 class a iaw din 12664, iso 1042. 150 ml stopper n/s 14/23 material borosilicate glass 3.

 

500 mL - Volumetric Flasks with ST Polyethylene Stopper Class A Hirschmann

500 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann

500 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann - Meet astm e288, class a requirements. Flasks feature a fine white graduation line and marking spot. Graduated to contain. Flasks include a [st] polyethylene stopper.

 

50 mL - Volumetric Flasks with ST Polyethylene Stopper Class A Hirschmann

50 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann

50 mL – Volumetric Flasks with [ST] Polyethylene Stopper, Class A, Hirschmann - Meet astm e288, class a requirements. Graduated to contain. Flasks include a [st] polyethylene stopper. Flasks feature a fine white graduation line and marking spot.

 

Vee Gee Scientific 20149-500 500 mL Separatory Funnel Borosilicate Glass Squibb Pear Shaped PTFE Stopcock 27 Polyethylene Stopper

Vee Gee Scientific 20149-500 500 mL Separatory Funnel, Borosilicate Glass, Squibb, Pear Shaped, PTFE Stopcock, #27 Polyethylene Stopper

Vee Gee Scientific 20149-500 500 mL Separatory Funnel, Borosilicate Glass, Squibb, Pear Shaped, PTFE Stopcock, #27 Polyethylene Stopper - Made from schott duran borosilicate tubing with a low coefficient of expansion. These separatory funnels feature smooth tooled tips, large, white block letters, and large marking squares. Borosilicate tubing also provides uniform wall thickness resulting in the optimum balance between thermal shock resistance and mechanical strength. Vee gee 20149-series separatory funnels meet astm e-1096 type 4 specifications for classification, design, and markings. The stopcock bores, body openings, and stems are carefully aligned for even liquid flow with fast cut-off. Supplied with ptfe stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel.

 

Vee Gee Scientific 20149-250 250 mL Separatory Funnel Borosilicate Glass Squibb Pear Shaped PTFE Stopcock 22 Polyethylene Stopper

Vee Gee Scientific 20149-250 250 mL Separatory Funnel, Borosilicate Glass, Squibb, Pear Shaped, PTFE Stopcock, #22 Polyethylene Stopper

Vee Gee Scientific 20149-250 250 mL Separatory Funnel, Borosilicate Glass, Squibb, Pear Shaped, PTFE Stopcock, #22 Polyethylene Stopper - These separatory funnels feature smooth tooled tips, large, white block letters, and large marking squares. Vee gee 20149-series separatory funnels meet astm e-1096 type 4 specifications for classification, design, and markings. Borosilicate tubing also provides uniform wall thickness resulting in the optimum balance between thermal shock resistance and mechanical strength. The stopcock bores, body openings, and stems are carefully aligned for even liquid flow with fast cut-off. Supplied with ptfe stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel. Made from schott duran borosilicate tubing with a low coefficient of expansion.

 

50 mL - VWR Volumetric Flask with Polyethylene Stopper Class A

50 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A

50 mL – VWR Volumetric Flask with Polyethylene Stopper, Class A - Durable white color printing which has good life in laboratory environment. These volumetric flasks are batch certified and are calibrated at 20 degrees celsius to contain. Borosilicate glass fabrication polyethylene stopper construction durable white marking spot they feature a single graduation ring and polyethylene stopper with marking spot. Made from astm e438 type 1 class a borosilicate 33 expansion glass as per astm specification e237 and e288.