Testing Foam
Testing Foam means generating foam and measuring the resulting foam volume in steady intervals during foam generation and foam decay. The relevant environmental parameters, such as the sample temperature, need to be recorded and held constant during the whole measuring procedure. The accuracy of the foam testing procedure will be determined by the repeatable generation of foam and by the resolution of the volume measuring system used.
Foam-Testing-System
The Foam Testing System (FTS) makes the automated testing of
foam possible. It features a foam generator for aqueous liquids
which delivers highly repeatable results and an automated
measuring system of the foam volume. Hence, the test result is not
disturbed by subjective factors.
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Procedure of Testing Foam
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Current
Approach |
SITA
Foam Tester R2000 |
| Filling the Measuring Container with the Sample Liquid | manual filling of the measuring container |
automatic filling of the sample container from a reservoir |
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| Temperature Control |
heating/cooling using a thermostat without direct temperature control in the sample liquid |
sample temperature controlled |
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| Conditioning | integrated stirring program conditions the sample | |
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| Foam Generation |
various techniques | highly reproducible through the use of the patented rotor |
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| Measuring
Foam/ Generation and Decay |
reading the foam level and time elapsed or using sensors to determine the level | microcomputer controlled scanning of the foam volume using a new kind of sensing technique |
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| Draining the Measuring Container | manual | automatic: controlled by the system |
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| Cleaning | manual | automatic: integrated cleaning procedure |
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| Processing the Results | protocols, plots / graphs | a test protocol is automatically generated, processed and plotted by the software |
The tensiometer SITA pro line f10
Typical Applications of the SITA pro line t60