| Autor: |
Spangler, W. G., Cross, H. D., Schaafsma, B. R. |
| Zdroj: |
Journal of the American Oil Chemists' Society; August 1965, Vol. 42 Issue: 8 p723-727, 5p |
| Abstrakt: |
A laboratory screening test for fabric detergency has been developed, which closely parallels practical laundry operations. Natural airborne particulate is used so that the argument for and against carbon soil is eliminated. The oily soil consists of synthetic sebum, thereby simulating the surface film that covers the human integument. The particulate and fatty matter are combined into an aqueous suspension and padded onto the fabric. Variables can be measured in a minimum of time because the entire procedure is carried out in the laboratory and is not dependent on a panel of subjects as is the case in most practical testing. The procedure for this test as generally employed consists of multiple washes and measures brightener build up and redeposition in addition to detergency. Precision of the method is y 0.4% at the 95% confidence level. Evaluations are made both visually and instrumentally. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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