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This evaluation procedure is intended as an alternative to the visual method of Evaluation Procedure 1, Gray Scale for Color Change, for assessing the change in color of a test specimen. It is applicable to any test method referring to Gray Scale except those which involve treatment with solutions containing fluorescent whitening agents (FWA).
Product Details
- Published:
- 2015
- Number of Pages:
- 3
- File Size:
- 1 file , 150 KB
