00000nam 2200000za 4500 9.861841 CaOODSP 20241203113644 cr ||||||||||| 180912s1972 onc #ot f|0| 0 eng d CaOODSP eng eng fre n-cn--- En36-503/70E-PDF Goulden, P. D. The effect of detergent phosphate levels on the cleaning process [electronic resource] / P. D. Goulden. Burlington, Ontario : Environment Canada, 1972. v, 7 p. : figures. Technical bulletin - Inland Waters Directorate ; no. 70 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographic references. "The determination of the cleaning performance of detergents containing 32%, 48% and 64% sodium tripolyphosphate (STPP) is described. The tests were carried out jointly with Ontario Research Foundation in 1970. The cleaning was measured under different conditions of‘detergent usage and water hardness. Artificially and naturally soiled fabrics were washed in a domestic washing machine. It was found that phosphate level is critical below a mole ratio STFP:CaCO3 of 0.3:1 but that above this ratio the other ingredients in a detergent formulation have as significant an effect on cleaning performance"--Abstract. Includes abstract in French. gccst Clothing gccst Maintenance gccst Chemistry Canada. Environment Canada. Canada. Inland Waters Directorate. Technical bulletin (Canada. Inland Waters Directorate) no. 70. (CaOODSP)9.861123 PDF 812 KB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-70-eng.pdf