AATCC 209-2019 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 certain wet processing steps, particularly bleaching, and can be used as a measure of the suitability of prepared fabric for subsequent dyeing and finishing operations.
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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| Number of Pages : | 3 |
| Published : | 2019 |
