TM209- pH and Total Alkali in Wet Processed Textiles: Combined
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AATCC TM209-2019, Test Method for pH and Total Alkali in Wet Processed Textiles: Combined
Developed in 2019 by AATCC Committee RA34
1. Purpose and Scope
1.1 This test method is used to determine the pH and total alkali content of wet processed textiles, pH and total alkali can be used to determine washing and/or neutralizing efficiency after certan wet processing steps, particularly bleaching, and can be used as a measure of the suitability of prepared fabric for subsequent dyeing and finishing operations. 1.2 To make a quantitative determination, the chemicals which influence pH must be removed from the textile specimen, collected as a water extract and then accurately measured by a pH meter.
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The above information is only a summary of the AATCC test method.