Moisture Analysis: Non-PET Resin
| Sample Type | Required Quantity | Equipment Used |
| Resin Flake Preform Bottle |
1 grams | Moisture Analyzer |
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.
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