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Significance and Use
The test as now constituted is not suitable for ranking of detergent products, since no basis is available at this time for correlation of the anti-deposition performance of detergents using any particular combination of soils and fabrics with anti-redeposition performance during washing of naturally soiled articles.
A suggested procedure for comparing the performance of any two laundry detergents or naturally soiled family items in home laundry equipment, under controlled conditions on a paired comparison basis, is described in Method D2960.
1.1 This test method provides guidelines for measuring the ability of detergents to prevent the deposition of soils from detergent solutions onto fabrics. It is intended as a laboratory screening test to aid in the formulation of detergent products, for quality control, and as a basis between the purchaser and seller in standardizing specific products' performance.
1.2 The anti-soil deposition performance of detergent products will vary greatly depending on the type of soils and fabrics used in the test. Therefore, selection of the soils, fabrics, reference detergents, and test conditions shall be made by agreement between the interested parties on the basis of experience.
1.3 The values stated in either inch-pound or SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material safety data sheets are available for reagents and materials. Review them for hazards prior to usage.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D2960 Guide for Controlled Laundering Test Using Naturally Soiled Fabrics and Household Appliances
E97 Method of Test for Directional Reflectance Factor, 45-Deg 0-Deg, of Opaque Specimens by Broad-Band Filter Reflectometry
E313 Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
ICS Number Code 71.100.40 (Surface active agents)
UNSPSC Code 12161902(Detergent surfactants)