ASTM D 4009 - 92 （2017） Standard Guide forFoam Stability of Hand Dishwashing Detergents1.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:D4009-92(Reapproved 2017) INTERNATIONAL Standard Guide for Foam Stability of Hand Dishwashing Detergents1 This standard is issued under the fixed designation D4009:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (s)indicates an editorial change since the last revision or reapproval. 1.Scope using any particular food soil or bination of soils with 1.1 This guide provides guidelines for several techniques of consumers'ranking of performance. measuring the foam stability of light-duty hand dishwashing 3.2 The relative foam stability ranking of hand dishwashing detergent products in the presence of artificially applied test-detergent products will vary greatly depending on the type of food soils.It is intended as a laboratory screening test to aid in food soils used in the test.Therefore selection of the standard the formulation of products for quality control and as a basis food soil to be used in a test shall be made by agreement between the formulator and supplier in standardi...