GB/T 7463-2008 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7463-2008: Surface active agents -- Determination of the power to disperse calcium soap -- Acidimetric method (Modified Schoenfeldt method) Status: Valid GB/T 7463: Historical versions
Basic dataStandard ID: GB/T 7463-2008 (GB/T7463-2008)Description (Translated English): Surface active agents -- Determination of the power to disperse calcium soap -- Acidimetric method (Modified Schoenfeldt method) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G72 Classification of International Standard: 71.100.40 Word Count Estimation: 8,872 Date of Issue: 2008-05-28 Date of Implementation: 2008-12-01 Older Standard (superseded by this standard): GB/T 7463-1987 Adopted Standard: ISO 6387-1983, MOD Regulation (derived from): National Standard Approval Announcement 2008 No.9 (Total No.122) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the amount of an acid titration. To determine at least 95% of the calcium required for 1h remain completely dispersed soap dispersant (surface active agent, the same below) a minimum amount. This standard is applicable to all types of surface active agents, as long as these do not interfere with the surfactant Acidimetric calcium soaps can be, but not the presence of basic inorganic salts such as phosphates, carbonates and silicates. GB/T 7463-2008: Surface active agents -- Determination of the power to disperse calcium soap -- Acidimetric method (Modified Schoenfeldt method)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Surface active agents. Determination of the power to dispersecalcium soap. Acidimetric method (Modifled Schoenfeldt method) ICS 71.100.40 G72 National Standards of People's Republic of China Replacing GB/T 7463-1987 Surface active agents lime soap dispersing power (ISO 6387. 1983, MOD) Posted 2008-05-28 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis revised standard adopts ISO 6387. 1983 "surfactant lime soap dispersing power measured amount of acid titration (Improved Schenfeldt Act) "(in English), and ISO 6387. 1983 The main differences are shown in Appendix A. This standard is based on ISO 6387. 1983 re-drafted. Because of the special needs of our laws and industry standards in this original and revised We carried out the following processing technology of international standards. --- Normative reference documents, ISO 2174 corresponds to our national standards with QB/T 2116-2006 "washing paste" instead of 1987 Edition GB/T 6367-1986 "surfactant known calcium hardness water prepared"; --- Of oleic acid reagent provides raw material type, must meet the QB/T 2153-1995 "Industrial oleic acid" in the Y-8 type; --- Inequality (1) shows the volume of letters should not be written as Vp 1, Vp letter and the text in order to avoid an interpretation of the meaning to be confused; --- The inequality (1) is greater than sign ( >) into a number greater than or equal (≥). This revised standard adopts ISO 6387. 1983, in order to further facilitate the use of editorial changes were as follows. a) will the "international standard" be replaced by "this standard"; b) use a decimal point instead of a decimal comma ",". ","; c) Remove the preface to international standards. This standard replaces GB/T 7463-1987 "surfactant lime soap dispersing power measured amount of acid titration (Improved Schenfeldt law). " The major changes in standards and GB/T 7463-1987, see Appendix A. Appendix A of this standard is an informative annex. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee surfactant and detergent. This standard was drafted. National Cleaning Products Quality Supervision and Inspection Center (Taiyuan), China Daily Chemical Industry Institute. The main drafters of this standard. Geng together. This standard was first published in 1987, this is the first revision. Surface active agents lime soap dispersing power1 ScopeThis standard specifies the amount of an acid titration to determine that at least 95% of the calcium soap completely decentralized holding 1h desired dispersant (surface active Agent, the same below) the minimum amount. NOTE. This method also provides a dispersant due to insufficient amount of lime soap dispersing part of the amount of data. This standard applies to all types of surface active agents, as long as these surfactants do not interfere with calcium soaps amount of acid titration can be, but should not be kept In basic inorganic salts, such as phosphates, carbonates and silicates.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. QB/T 2116-2006 washing paste QB/T 2153-1995 industrial oleic acid3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 1g amount of soap dispersants may be fully dispersed in grams. Principle 4 Formulation of 0.5% (by mass) aqueous solution of soap, placed 24h at the test temperature, an aliquot of this solution aliquot parts. This whole division Parts and dilute solution of a dispersant mix. And then with a known predetermined volume of the calcium hardness of water. The mixture was kept at the test temperature Place under 1h degrees (so that calcium soap flocculation layer to the surface), with bromocresol green as indicator, titrated with hydrochloric acid standard volumetric portioning a whole lower Calcium soaps present in the solution.5 ReagentsUnless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity water. 5.1 known calcium hardness of the water, 1000mg/L. Formulated and calibrated according to the provisions of QB/T 2116-2006 Appendix A of. 5.2 sodium oleate, 100g/L aqueous. 5.2.1 oleic acid, QB/T 2153-1995 in the Y-8 type. 5.2.2 Sodium hydroxide (GB/T 629), Ba (NaOH) = 1mol/L solution. Weigh 92.7g of oleic acid (accurate to 0.001g), was dissolved with 1mol/L sodium hydroxide solution 328.5mL. Cooling to room temperature, quantitatively Transferred to a single scale 1000mL volumetric flask, water volume. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7463-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 7463-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 7463-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7463-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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