Oxyegen Index Tester

March 10, 2023

ASTM D2863 Oxygen Index

Oxygen Index: Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of PlasticsThe purpose of ASTM D2863 is to establish the lowest oxygen concentration in an oxygen/nitrogen combination necessary to sustain a flame burn on a plastic specimen. Real end use circumstances are not correlated.

The test sample is placed vertically in a glass chimney, and a flow of oxygen and nitrogen is created there by starting at the bottom of the chimney. The test sample's top edge is lighted, and when the oxygen concentration in the flow falls, the flame eventually goes out.

Specimen dimensions: Depending on the kind of material being tested, there are six requirements for the test specimen.

Features:

A new paramagnetic oxygen cell for measuring oxygen levels precisely (to 0.1%)
A small, effective unit with ventilation for use inside a lab hood
By adjusting a single valve, an automatic flow control system allows adjustment of the oxygen level.
quickly inserting the test sample into the 450 mm 75 mm test chimney
During the test, a digital monitor shows the atmosphere's oxygen content (no calculations needed)
Temperature of the gas mixture entering the test chimney is displayed digitally.
Sample holder supplies are available for both rigid and flexible samples.
reduced gas path for quick reaction

Specification: