is raised to about 140 u00b0 to 149 u00b0 f for about 10 minutes the ph is adjusted to 7 0 7 5 the resulting composition is an anti static compound of dialkyl dimethyl ammonium chloride with an essential oil of rue oil bonded directly to a methyl ring of the cationic surfactant compound the anti static composition was tested for longevity by applying a 0 4 solution using an atomization spray to a styrene jar and air dried an untreated control sample was also prepared for the test both samples were scanned with a static electricity meter the control sample reading was 300 500 volts and the coated sample zero the samples were tested after one week three weeks six weeks and nine weeks by rubbing the coated sample and the control sample with a nylon cloth the results of this test were as follows ______________________________________ 1 wk 3 wks 6 wks 9 wks ______________________________________coated sample 0 0 0 0controlsample 3500 volts 5500 volts 4000 volts 4300 volts______________________________________ the results of the test show that the longevity of the anti static composition is superior to the untreated control sample anti static tests conducted on the anti static composition were divided into three parts 1 a study of the compatibility of the anti static composition with carpet cleaning detergents 3 a study of the resoiling characteristics of the carpet after washing with detergents with and without the anti static composition the compatibility tests consisted of adding various amounts of the anti.