Moisture Analysis: Non-PET Resin

Purpose

This procedure measures the amount of moisture within a sample using the Arizona Instruments Moisture Analyzer.

Description

A sample is deposited into the analyzer and heated to release all of the moisture within the sample. The moisture is detected by a relative humidity sensor within the chamber. Readings from the sensor combined with the manifold temperature and the outlet flow rate calculate the µg of H₂O evolved per second which are calculated to ppm. Once the rate of H₂O evolution is less than 0.10ug/s, the test is considered complete. The sample size is determined based on the expected moisture to yield between 500 to 1000 ug H₂O evolved during the test.

Return to Material Testing Overview