Density Gradient Column for Polyethylene Tank Samples

Glass gradient column that measures density of polyethylene samples by float position in a liquid of graded density. Used to confirm resin grade of rotomoulded tanks.

Specification

Small specimens are dropped in the column and the height at which each settles indicates density to 0.0005 g/cm3. Density verifies correct resin choice, usually LLDPE at 0.935 g/cm3. A thermostatic jacket ensures stable temperature.

Features

• Thermostatic jacketed glass column
• Set of calibrated floats
• Isopropanol and water gradient
• Scale in g/cm3
• Stirrer and gradient mixer included

Technical Specifications

Density Range	0.900 - 1.000 g/cm3
Resolution	0.0005 g/cm3
Column Height	approx. 800 mm
Temperature	23 +/- 0.1 deg C
Standards	ASTM D1505, ISO 1183-2
Power Supply	230 V AC, 50 Hz

Standard Accessories

• Float set (8)
• Mixer
• Bath circulator