GB/T 29493.8-2013 English PDF

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GB/T 29493.8-2013: Determination of harmful substances in textile dyeing and finishing auxiliaries -- Part 8: Determination of residual monomers in polyacrylate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29493.8-2013	139	Add to Cart	3 days	Determination of harmful substances in textile dyeing and finishing auxiliaries -- Part 8: Determination of residual monomers in polyacrylate	Valid

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Basic data

Standard ID: GB/T 29493.8-2013 (GB/T29493.8-2013)
Description (Translated English): Determination of harmful substances in textile dyeing and finishing auxiliaries -- Part 8: Determination of residual monomers in polyacrylate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G70
Classification of International Standard: 71.100.40
Word Count Estimation: 6,646
Quoted Standard: GB/T 601-2002; GB/T 603-2002; GB/T 6682-2008; GB/T 8170-2008
Regulation (derived from): National Standards Bulletin 2013 No. 10
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: Textile dyeing and finishing auxiliaries polyacrylate products Determination of residual monomer. This standard applies to polyacrylate coating finishing agents, adhesives and other products in the residual monomer content determi

GB/T 29493.8-2013: Determination of harmful substances in textile dyeing and finishing auxiliaries -- Part 8: Determination of residual monomers in polyacrylate

---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.
Determination of harmful substances in textile dyeing and finishing auxiliaries Part 8.. Determination of residual monomers in polyacrylate ICS 71.100.40 G70 National Standards of People's Republic of China Determination of the textile dyeing and finishing auxiliaries harmful substances Part 8. acrylics products Determination of residual monomers Part 8. Determinationofresidualmonomersinpolyacrylate Issued on. 2013-07-19 2013-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 29493 "textile dyeing and finishing auxiliaries of harmful substances Determination" is divided into nine sections. --- Part 1. Determination of polybrominated biphenyls and polybrominated diphenyl ethers by gas chromatography - mass spectrometry; --- Part 2. perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) High performance liquid chromatography - mass Spectroscopy; --- Part 3. organotin compounds by gas chromatography - mass spectrometry; --- Part 4. polycyclic aromatic compounds (PAHs) by gas chromatography - mass spectrometry; --- Part 5. Determination of the formaldehyde content of the emulsion polymer free; --- Part 6. polyurethane prepolymer isocyanate determination of the ester group content; --- Part 7. polyurethane coating finishing agent diisocyanate determination ester monomer; --- Part 8. Determination of acrylic products in the residual monomers; --- Part 9. Determination of acrylamide. This is Part 8 GB/T 29493 of. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee of dye auxiliaries Technical Committee (SAC/TC134/SC1) centralized. Drafting this Part. Zhejiang Chuan Co., Ltd., Hangzhou-Fine Chemical Co., Ltd. The main drafters of this section. Lin Yun Zhou, Zhao Ting, Zhao Lihui, Zhang baby, Luo Jutao. Determination of the textile dyeing and finishing auxiliaries harmful substances Part 8. acrylics products Determination of residual monomers

1 Scope

GB/T 29493 provisions of this part of the measurement method of textile dyeing and finishing auxiliaries polyacrylate product residual monomers. This section applies to the determination of the residual monomer content of the polyacrylate coating finishing agents, adhesives and other products.

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. Preparation of GB/T 601-2002 Chemical Reagent standard titration solution GB/T 603-2002 Chemical Reagent Test Methods - Preparations with GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) GB/T 8170-2008 revised value represents about rules and limit values \u200b\u200band judgment Principle 3 An excess of potassium bromate in the sample solution - a solution of potassium bromide, potassium bromide and potassium bromate reaction of bromine in acidic medium with the sample Double bond reaction was. After completion of the reaction, an excess of potassium iodide and reduction of unreacted bromine iodine generated, and finally with sodium thiosulfate Precipitation titration standard solution of iodine. KBrO3 5KBr 6HCl → 3Br2 6KCl 3H2O CH -2 CHCOOR Br2 → CH2BrCHBrCOOR Br2 2KI → 2KBr I2 I2 2Na2S2O3 → Na2S4O6 2NaI

4 Reagents and solutions

Unless otherwise specified, use only recognized as analytical reagents and GB/T 6682-2008 specified in the third grade water. 4.1 CTC. 4.2 bromate - potassium bromide solution, c (16KBrO3 ) = 0.05mol/L. Weigh 1.5g 12.5g of potassium bromide and potassium bromate in 200mL burn Cup, add water to dissolve and transferred to 1000mL volumetric flask, dilute to the mark, shake, stored in a brown bottle and set aside. 4.3 sodium lauryl sulfate solution, 2% (mass fraction). 4.4 potassium iodide solution, 10% (mass fraction). 4.5 hydrochloric acid solution, 11 (volume ratio). 4.6 sodium thiosulfate standard solution, c (Na2S2O3) = 0.1mol/L. preparation and calibration in accordance with the provisions of GB/T 601-2002 in. ......

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