Graduated Cylinders
Used to measure the volume of a liquid, graduated cylinders feature a narrow cylindrical shape with markings along the cylinder that represent the amount of liquid being measured. Graduated cylinders are considered more accurate and precise for measurement purposes than flasks and beakers but should not be used for volumetric analysis.
Graduated cylinders are typically constructed from plastic or glass, with each providing different benefits. Plastic graduated cylinders are impact resistant, with polyethylene graduated cylinders noted for their transparency and polypropylene for its excellent chemical resistance. Glass graduated cylinders are chemically inert, while borosilicate glass offers greater resistance to thermal shock than regular glass.
Graduated cylinders have a solid base or foot for stability and a spout to facilitate pouring out the contents. Because they are somewhat unsteady, some glass cylinders also have a plastic bumper or ring to help prevent accidental breakage if the cylinder falls over.
Mixing (graduated) cylinders have ground glass joints instead of a spout or are closed with a stopper. These are generally used to make dilutions.
Typical graduated cylinder capacities range from 10 to 4,000mL. Glass graduated cylinders may be manufactured to ASTM or other specific standards. Some are serialized and may come with certificates of traceability.
Nelson Jameson Company 250 mL Glass Graduated Cylinder For Pharma Test Tapped Density Tester
250 mL Glass Graduated Cylinder For Pharma Test Tapped Density Tester, Mfr # PT-490-0491;
Chemglass Life Sciences Cylinder, Graduated, 100mL, 24/40 Outer Joint, "To Deliver"
Cylinder, Graduated, 100mL, 24/40 Outer Joint. Cylinders are calibrated to contain at 20¿ C. Supplied without stopper. For standard taper stoppers see CG-3000. Tolerances and subdivisions are the same as CG-8242.
Chemglass Life Sciences 10mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale
10mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale. Cylinders are manufactured from polypropylene. They meet Class B specifications per DIN 12681. Cylinders have ring molded graduations and have blue screening to simplify the measurements.
Chemglass Life Sciences 250mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale
250mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale. Cylinders are manufactured from polypropylene. They meet Class B specifications per DIN 12681. Cylinders have ring molded graduations and have blue screening to simplify the measurements.
Chemglass Life Sciences 2000mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale
2000mL Cylinder, Graduated, Class B, Polypropylene, Blue Scale. Cylinders are manufactured from polypropylene. They meet Class B specifications per DIN 12681. Cylinders have ring molded graduations and have blue screening to simplify the measurements.