Centrifuge Tubes

Specifications for centrifuge tubes include capacities ranging from 5 ml to 50 ml. Outer diameters (O.D.) of tubes vary from 14 mm to 33 mm, with lengths between 90 mm and 150 mm. The mouth diameter is either 40 mm or 60 mm depending on size. Ground stoppers are specified with standard taper sizes such as 10/19, 14/23, and 19/26.

Conical centrifuge tubes with graduations are also detailed, with graduation increments of 0.1 ml or 0.2 ml depending on capacity. Tube diameters and lengths correspond closely to the standard centrifuge tubes.

Separatory Funnels

Separatory funnels are listed with capacities from 5 ml to 50 ml. They feature conical centrifuge tubes with graduations and standard dimensions. The funnels include short stem options with ground-in glass stoppers and glass PTFE stopcocks. Stem diameters range from 8 mm to 12 mm with lengths from 60 mm to 70 mm.

Funnels

Various types of funnels are described, including 60° funnels with approximate short and long stems. Stem outer diameters range from 7 mm to 26 mm, with lengths from 50 mm to 200 mm. Funnel capacities vary widely from 10 ml up to 1000 ml.

Filter Funnels

Filter funnels, including Buchner funnels with fritted discs, are specified with capacities from 30 ml to 500 ml. Porosity grades are indicated (e.g., 1, 2, 3, 4) to denote the fineness of the fritted disc. Diameters range from 40 mm to 300 mm. Stem diameters and lengths are provided for both short and long stem variants.

Key Parameters and Standards

• Capacities: 5 ml to 1000 ml depending on glassware type.
• Dimensions: Outer diameters and lengths standardized for compatibility.
• Ground stoppers and stopcocks: Standard taper sizes ensure secure sealing.
• Graduations: Precise volume markings for measurement accuracy.
• Porosity: Filter funnel fritted discs classified by porosity number for filtration control.

This structured data supports selection and specification of laboratory glassware for centrifugation, separation, filtration, and general liquid handling tasks, ensuring compatibility and performance in laboratory procedures.