GB/T 28191-2011 English PDF

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GB/T 28191-2011: Surface active agents -- Detergents -- Anionic-active matter stable to acid hydrolysis -- Determination of trace amounts
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28191-2011	169	Add to Cart	3 days	Surface active agents -- Detergents -- Anionic-active matter stable to acid hydrolysis -- Determination of trace amounts	Valid

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Basic data

Standard ID: GB/T 28191-2011 (GB/T28191-2011)
Description (Translated English): Surface active agents -- Detergents -- Anionic-active matter stable to acid hydrolysis -- Determination of trace amounts
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G72
Classification of International Standard: 71.100.40
Word Count Estimation: 7,758
Date of Issue: 2011-12-30
Date of Implementation: 2012-09-01
Quoted Standard: GB/T 5173
Adopted Standard: ISO 2868-1973, MOD
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 presence of excess acid reflux conditions anionic hydrolysis was measured after a small amount of stable anionic detergent active approach. This standard applies to the determination of alkylphenol ether sulfates cyclic sulfonates, fatty alcohol ether sulfates and sulfated fatty alcohol in small amounts sulfonate.

GB/T 28191-2011: Surface active agents -- Detergents -- Anionic-active matter stable to acid hydrolysis -- Determination of trace amounts

---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. Detergents. Anionic-active matter stable to acid hydrolysis. Determination of trace amounts ICS 71.100.40 G72 National Standards of People's Republic of China Surfactant Detergent acid hydrolysis stability Determination of trace amounts of anionic active substance (ISO 2868. 1973, MOD) Issued on. 2011-12-30 2012-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses the redrafted law revision using ISO 2868. 1973 "surfactant detergent solution to acid stable anionic living Determination of trace amounts of matter. " Compared to 1973 the existence of technical differences in terms of these differences has been involved through its outer page blank spaces. This standard and ISO 2868 Opposing vertical single line (︱) were identified in Appendix A gives a list of corresponding technical differences and their causes. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee and the detergent surfactant (SAC/TC272) centralized. This standard was drafted. China Daily Chemical Industry Research Institute, Shandong Sheng Tong Group Co., Ltd., surfactant and detergent line Industry Productivity Promotion Center. The main drafters of this standard. Yao Chen's CRITICAL Hufang Hua, Zhoubing Yang. Surfactant Detergent acid hydrolysis stability Determination of trace amounts of anionic active substance

1 Scope

This standard specifies the presence of a hydrolysis after anionic material under excess acid reflux, a small amount of detergent measured stable anionic The method thereof. This standard applies to the determination of alkylphenol ether sulfates cyclic sulfonates, fatty alcohol ether sulfates and sulfated fatty alcohol in a small amount of sulfur Salt.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Determination of GB/T 5173 surfactant and an anionic detergent active matter by direct two-phase titration (GB/T 5173-1995, ISO 2271. 1989, MOD) Principle 3 It was refluxed anionic hydrolyzed under acidic conditions. Water and chloroform two-phase medium, in the case of the presence of an acidic mixed indicator, with benzyl chloride Su bromide (a cationic surfactant Agent) titration, determination of anionic active matter content.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity water. 4.1 sulfuric acid solution, c 12H2SO ÷ 4 = 2mol/L. 4.2 Phenolphthalein - ethanol solution, c (C20H14O4) = 10g/L. 4.3 Sodium hydroxide solution, c (NaOH) = 10mol/L. 4.4 Sodium hydroxide solution, c (NaOH) = 1mol/L. 4.5 chloroform, ρ20 = 1.48g/mL, distillation range 59.5 ℃ ~ 61.5 ℃. 4.6 acidic mixed indicator, according to GB/T 5173 preparation and calibration. 4.7 Su benzyl chloride bromide (Hamming 1622) standard solution, c (C27H42ClNO2 · H2O) = 0.004mol/L, according to GB/T 5173 and preparation Calibration. NOTE. Other reagent GB/T 5173 are listed in the active titration process will be used.

5 Instruments

5.1 Erlenmeyer flask, 250mL, equipped with a conical ground glass joints. ......

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