AATCC 6:2016 pdf download.Colorfastness to Acids and Alkalis
1.1 Test specimens are evaluated for change in color when spot tested with acid, or steeped in alkali fumes, in a labo- ratory setting. These test methods are ap- plicable to textiles made from all fibers in the form of yarns or fabrics, whether dyed, printed or otherwise colored. 2. Principle 2.1 Test specimens are steeped in, or spotted with, the required solutions by means of simple laboratory equipment, allowed to dry at room temperature, then examined for change in color. 3. Terminology 3.1 colorfastness, n.—the resistance of a material to change in any of its color characteristics, to transfer of its color- ant(s) to adjacent materials, or both, as a result of the exposure of the material to any environment that might be encoun- tered during the processing, testing, stor- age or use of the material. 4. Safety Precautions NOTE: These safety precautions are for information purposes only. The pre- cautions are ancillary to the testing proce- dures and are not intended to be all inclusive. It is the user’s responsibility to use safe and proper techniques in han- dling materials in this test method. Manu- facturers MUST be consulted for specific details such as material safety data sheets and other manufacturer’s recommenda- tions. All OSHA standards and rules must also be consulted and followed.
10.1 Precision. Precision for this test method has not been established. Until a precision statement is generated for this test method, use standard statistical tech- niques in making any comparisons of test results for either within-laboratory or between-laboratory averages. 10.2 Bias. The colorfastness to acids and alkalis can be defined only in terms of a test method. There is no independent method for determining the true value. As a means of estimating this property, the method has no known bias.AATCC 6 pdf download.