Product Description
Glass stoppers can freeze in ground joints, especially with alkaline solutions. PTFE stoppers resist sticking and chemical attack, and these color-coded versions make it easy to match the right stopper to each flask or cylinder at a glance. They also help organize shared labs.
This listing is for Kimble catalog number 41901R-13: Color Coded PTFE Stopper, Size 13, Case of 6. Each stopper is PTFE with a removable colored polyethylene handle and a 30 mm ground zone, designed from ASTM E675. Sizes 9 through 22 are solid and sizes 32 through 38 are hollow. Remove the handle before cleaning or exposing the stopper to temperatures above 80 C. Stoppers are packed six per case. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- PTFE construction – Excellent chemical resistance.
- Resists freezing – Will not seize in ground glass joints.
- Color-coded handle – Quick size identification.
- Removable handle – Take off before cleaning or heating above 80 C.
- Wide size range – Sizes 8 through 38.
Specifications
| Catalog Number | 41901R-13 |
| Brand | Kimble (DWK Life Sciences) |
| Description | Color Coded PTFE Stopper, Size 13 |
| Sold As | Case of 6 |
| Material | PTFE with polyethylene handle |
| Standard | ASTM E675 |
| Ground zone length | 30 mm |
| Construction | Solid (sizes 9 to 22); hollow (sizes 32 to 38) |
| Handle temperature limit | Remove above 80 C |
Available Options
- 41901R-16 – Color Coded PTFE Stopper, Size 16, Case of 6
- 41901R-19 – Color Coded PTFE Stopper, Size 19, Case of 6
- 41901R-22 – Color Coded PTFE Stopper, Size 22, Case of 6
- 41901R-27 – Color Coded PTFE Stopper, Size 27, Case of 6
- 41901R-32 – Color Coded PTFE Stopper, Size 32, Case of 6
- 41901R-38 – Color Coded PTFE Stopper, Size 38, Case of 6
- 41901R-8 – Color Coded PTFE Stopper, Size 8, Case of 6
- 41901R-9 – Color Coded PTFE Stopper, Size 9, Case of 6
Applications
- Volumetric flasks
- Graduated cylinders
- Storing alkaline solutions
- Replacing glass stoppers
