Globe Scientific
Graduated Glass Measuring Cylinders, Class B, Dual Scale, TD, ASTM E1272 — 5–250 mL, 2–4/Box | Globe Scientific
Graduated Glass Measuring Cylinders, Class B, Dual Scale, TD, ASTM E1272 — 5–250 mL, 2–4/Box | Globe Scientific
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Graduated Glass Measuring Cylinders, Class B, Dual Scale, To Deliver — 5 to 250 mL, 2–4/Box
Globe Scientific Graduated Glass Cylinders deliver dependable volumetric measurement across routine bench work, reagent preparation, and sample dispensing. Manufactured from borosilicate glass to ASTM E1272 Class B tolerances, each cylinder features dual graduations for reading from either orientation and a To Deliver (TD) calibration suited to general lab dispensing.
Technical Specifications
| Product Type | Graduated measuring cylinder |
|---|---|
| Volume/Size | 5, 10, 25, 50, 100, 250 mL |
| Material | Globe Glass borosilicate |
| Closure/Cap | Open top, pour spout; hexagonal base |
| Graduation | Dual graduations, Class B (ASTM E1272) |
| Calibration | To Deliver (TD) |
| Sterility | Non-sterile |
| Pack Size | 4/Box (5–100 mL); 2/Box (250 mL) |
Available Volumes
| Volume | SKU | Price (per box) |
|---|---|---|
| 5 mL (4/Box) | 8330005 | $86.40 |
| 10 mL (4/Box) | 8330010 | $80.00 |
| 25 mL (4/Box) | 8330025 | $108.00 |
| 50 mL (4/Box) | 8330050 | $111.90 |
| 100 mL (4/Box) | 8330100 | $128.40 |
| 250 mL (2/Box) | 8330250 | $100.40 |
Applications
- Measuring and dispensing buffers, media, and reagents at the bench
- Preparing dilutions and stock solutions for routine QC
- Volumetric titrant and indicator preparation in teaching labs
- Sample volume measurement for environmental and water testing
- Mixing and transferring liquids during formulation workflows
- General clinical and academic glassware support tasks
Chemical Resistance
| Reagent Class | Compatibility |
|---|---|
| Aqueous buffers | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Good (avoid hot/concentrated alkalis) |
| Alcohols | Excellent |
| Acetonitrile | Excellent |
| Aromatic solvents | Excellent |
| Chlorinated solvents | Excellent |
Quality & Procurement
Available through labsupplies.com as an authorized Globe Scientific dealer, shipping from US inventory. Every box carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited labs. Institutional and grant-funded tiered pricing is available — contact us for volume quotes on standing reagent-prep glassware orders.
Frequently Asked Questions
What does Class B tolerance mean for these cylinders?
Class B cylinders meet ASTM E1272 accuracy at roughly twice the tolerance of Class A. They suit routine measuring, dilution, and general dispensing where certified analytical precision is not required.
What is the difference between To Deliver (TD) and To Contain calibration?
To Deliver glassware is calibrated to dispense the marked volume when poured out, accounting for the small film that clings to the wall. These cylinders are TD, making them well suited to transferring measured liquids.
Why do these cylinders have dual graduations?
Dual graduations print scales on opposing sides so the volume can be read regardless of cylinder orientation. This speeds reading at the bench and reduces parallax-related errors.
Are these cylinders autoclavable?
Yes. The borosilicate Globe Glass construction tolerates standard autoclave cycles and repeated thermal use. Allow gradual heating and cooling to avoid thermal shock and preserve graduation legibility.
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