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AQUATRAN Model 3/40 Operator's Manual
Chapter 7: Testing Flat Film Samples
This chapter contains information on how to test flat film samples. Suggestions on how to maximize the
accuracy of your results and procedures describing how to perform the test are discussed.
Read this chapter to learn about:
•
Testing Suggestions
•
Preparing for a Film Test
Sample Size
•
Using Masks
•
Sample Orientation
•
Preparing the Samples for Testing
•
Conducting a Film Test
•
Testing with Chamber Generated RH or with 100%RH (Different Cartridges)
•
The AQUATRAN Model 3/40 is primarily intended as a package test instrument. An optional Film Test
Cartridge is available for testing flat film samples. A 100%RH Film Test Cartridge for calibration is provided
as part of the Starter Kit (054-279). The information provided in this chapter assumes the standard Film
Test Cartridge will be used when testing film samples.
Testing Suggestions
The following information will assist you in the day-to-day operation of your instrument.
Test duplicate samples whenever possible.
•
Use good samples. Pinholes and creases can contribute to false readings.
•
•
Use caution when recording data for a new or unknown specimen. Some materials approach
equilibrium slowly. When in doubt repeat the test.
If the test is to be run under precise RH conditions, make sure that the Water Reservoirs
•
have sufficient water in them.
If no testing will be performed for a significant period of time (overnight or weekend), no
•
special precautions are needed. The Gas Saver function will automatically be activated
(when enabled) whenever both test cells are in the "Idle" state.
•
Turning off the power and gas supplies to instrument is not recommended. If the instrument
is shutdown you will need to wait for it to outgas before testing can resume.
MOCON, Inc.
Revision D
Testing Flat Film Samples
7-1
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