GB/T 33795-2017 English PDF

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GB/T 33795-2017: Reactive dyes -- Determination of hydrolysis rate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33795-2017	139	Add to Cart	3 days	Reactive dyes -- Determination of hydrolysis rate	Valid

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Basic data

Standard ID: GB/T 33795-2017 (GB/T33795-2017)
Description (Translated English): Reactive dyes -- Determination of hydrolysis rate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 7,796
Date of Issue: 2017-05-31
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 2374-2017; GB/T 2391-2014
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 determination of the rate of hydrolysis of reactive dyes during dyeing. This standard is applicable to the determination of hydrolysis rate of KN and M reactive dyes during dyeing.

GB/T 33795-2017: Reactive dyes -- Determination of hydrolysis rate

---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.
Reactive dyes - Determination of hydrolysis rate ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of hydrolysis rate of reactive dyes 2017-05-31 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Dye Standardization Technical Committee (SAC/TC134). The drafting of this standard. Jiangsu Jin Jin Industrial Co., Ltd., Shenzhen City, the color dye Technology Co., Ltd., Shenyang Chemical Industry Research Institute Limited company, the State Dye Quality Supervision and Inspection Center. The main drafters of this standard. Ju Suhua, Wang Yong, Liang Peiji, Zhang Weiping, Li Guimei, Yang Zhenmei, Zhou Shenyong, Pu Aijun, Ji Lanqin. Determination of hydrolysis rate of reactive dyes

1 Scope

This standard specifies the determination of the rate of hydrolysis of the reactive dyes during dyeing. This standard is applicable to the determination of hydrolysis rate of KN and M reactive dyes during dyeing.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 2374-2017 General conditions for dye dyeing determination Determination of fixation rate of reactive dyes GB/T 2391-2014

3 principle

The reactive dyes are stained on cotton fibers, and as the dyeing process progresses, various hydrolysates are gradually produced. Determination of the dyeing process by liquid chromatography The peak area of the hydrolyzate is calculated by comparing the peak area of the effective dyes to which the dye is dyed and by a series of conversion corrections. The sum of the hydrolysis rates of the product. And then the dyeing time for the abscissa, the total hydrolysis rate as the ordinate, drawing hydrolysis rate curve. To hydrolysis rate The curve shows the rate of hydrolysis of the reactive dye during the dyeing process.

4 reagents and materials

Reagents and materials should comply with the relevant provisions of Chapter 3 of GB/T 2374-2017.

5 instruments and equipment

Instruments and equipment shall comply with the relevant provisions of Chapter 4 of GB/T 2374-2017. a) spectrophotometer; b) liquid chromatography; c) laboratory dyeing machine.

6 test method

6.1 Dyeing 6.1.1 Dyeing conditions The dyeing conditions are as follows. a) Dyeing depth. 2% (owf); b) dyeing fiber. cotton yarn 10g; ......

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