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GB/T 33421-2016: Liquid acid dyes -- Determination of shade and relative strength
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33421-2016 | English | 139 |
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Liquid acid dyes -- Determination of shade and relative strength
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GB/T 33421-2016
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Basic data | Standard ID | GB/T 33421-2016 (GB/T33421-2016) | | Description (Translated English) | Liquid acid dyes -- Determination of shade and relative strength | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G55 | | Word Count Estimation | 7,735 | | Date of Issue | 2016-12-30 | | Date of Implementation | 2017-07-01 | | Quoted Standard | GB/T 2374-2007; GB/T 6688-2008 | | Regulation (derived from) | National Standard Notice No.27 of 2016 | | 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 method for the determination of the color and intensity of liquid acid dyes. This standard is applicable to the determination of color and intensity of liquid acid dyes. | GB/T 33421-2016: Liquid acid dyes -- Determination of shade and relative strength---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.
Liquid acid dyes - Determination of shade and relative strength
ICS 71.100.01; 87.060.10
G55
National Standards of People's Republic of China
Determination of color and intensity of liquid acid dyes
2016-12-30 release
2017-07-01 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. Jinhua Shuanghong Chemical Co., Ltd., Shenzhen City, the color dye Technology Co., Ltd., Guangdong Germany and the United States Fine Chemical shares
Co., Ltd., Shenyang Chemical Industry Research Institute Co., Ltd., China Chemical Industry Technology Development Center, National Dye Quality Supervision and Inspection Center.
The main drafters of this standard. Xu Jiancheng, Ma Junqing, Liang Yishen, Chen Zufen, Xue Yan, Zhang Guodong, Wu Jiuying, Zhao Faabao, Dong Zhongsheng, Xu Liang
Determination of color and intensity of liquid acid dyes
1 Scope
This standard specifies the method for the determination of the color and intensity of liquid acid dyes.
This standard is applicable to the determination of color and intensity of liquid acid dyes.
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.
General conditions for determination of dye dyeing
Determination of Relative Strength and Color Difference of Dyes by Instrument Method GB/T 6688-2008
3 principle
3.1 staining method
Dyeing was carried out on the appropriate fibers (wool, nylon) under the same conditions as the standard sample of the same variety using an acid dye sample. then
The color intensity and intensity of the sample were evaluated by visual comparison with the color intensity of the standard sample of 100 points and the color light as the standard. Or with a colorimeter
Line color, and then calculate the color and intensity of the sample.
3.2 solution colorimetric method
When the dye solution meets the Lambert-Beer law, the acid dye sample and the standard sample are fixed in water and then measured with a spectrophotometer
Determine the absorbance of the maximum absorption wavelength, you can calculate the intensity of the dye sample. In the absorbance values are basically the same, in the color tube in the head
The color of the sample can be assessed by comparing the color difference between the standard sample and the sample.
4 reagents and materials
Reagents and materials shall comply with the relevant provisions of Chapter 3 of GB/T 2374-2007.
5 instruments and equipment
The equipment and equipment shall comply with the relevant provisions of Chapter 4 of GB/T 2374-2007.
6 test method
6.1 Dyeing method
6.1.1 Wool dyeing method
6.1.1.1 General conditions
The general conditions for dyeing shall comply with the relevant provisions of GB/T 2374-2007. The selection of the dyeing method shall be based on the particular variety, performance, and
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