Detail of GB/T 13173-2008

Introduction of GB/T 13173-2008

1 Scope This standard specifies the test methods for 16 indexes of surface active agent and detergent, i.e. reduced sample, granularity, total phosphorus pentoxide, total active matters, nonionic surface active agents, various forms of phosphate, tosylate, foaming power, chelating agent (EDTA), apparent density, whiteness, moisture and volatile matter, 4A zeolite content, active oxygen, alkali protease activity, and active chlorine. This standard is applicable to the determination of indexes for surface active agent and detergent. For determining sample using the method specified in this standard, it shall select method as appropriate to the sample. 2 Normative References The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies. GB/T 6003.1-1997 Test Sieves of Metal Wire Cloth GB/T 9087 The White Powdered Standard Plate for Colorimetry and Photometry QB/T 2623.1-2003 Determination of Free Caustic Alkali Content in Soaps QB/T 2739-2005 Preparations of Standard Volumetric Solutions of General Test Methods for Washing Products JB/T 9327 Whiteness Meter JJG 512 Verification Regulation of the Whiteness Meter 3 Terms and Definitions For the purposes of this standard, the following terms and definitions apply.

Contents of GB/T 13173-2008

Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Reduction of Sample 5 Determination of Particle Size for Powdered Detergent 6 Determination of Total Phosphorus Pentoxide in Detergent 7 Determination of Total Active Matter Content in Detergent 8 Determination of Content of Non-ionic Surface Active Agent in Detergent (Ion Exchange Method) 9 Separation and Determination of Phosphates in Detergent (Ion Exchange Column Chromatography) 10 Determination of Tosylate Content in Detergent 11 Determination of Foaming Power of Detergent (Ross-Miles Method) 12 Determination of Chelating Agent (EDTA) Content in Detergent (Titrimetric Method) 13 Determination of Apparent Density of Powdered Detergent (Method by Measuring the Mass of A Given Volume) 14 Determination of Whiteness of Powdered Detergent 15 Determination of Moisture and Volatile Matter in Detergent (Oven Method) 16 Determination of Active Oxygen Content in Detergent (Titrimetric Method) 17 Determination of 4A Zeolite Content in Detergent (Titrimetric Method) 18 Determination of Relatively Enzyme Activity or Content for Protease in Detergent 19 Determination of Active Chlorine in Detergent (Titrimetric Method) 20 Reporting Requirements of Test Results Appendix A (Informative) Clause Crossreference between This Standard and Alternate Standards or Sources Appendix B (Informative) Clause Crossreference between This Standard and Relevant ISO Standards B.1 Clause Crossreference between This Standard and Relevant ISO Standards B.2 Comparison between Chapter 4 of This Standard and ISO 607: 1980 B.3 Comparison between Chapter 5 of This Standard and ISO 2996: 1974 B.4 Comparison between 6.1 of This Standard and ISO 4313: 1976 B.5 Comparison between Chapter 12 of This Standard and ISO 4325: 1990 B.6 Comparison between Chapter 13 of this standard and ISO 697: 1981