GB/T 27594-2011 English PDF

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GB/T 27594-2011: Disperse dyestuffs -- Determination of relative strength of press cakes -- Spectrophotometer method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27594-2011	139	Add to Cart	3 days	Disperse dyestuffs -- Determination of relative strength of press cakes -- Spectrophotometer method	Valid

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Basic data

Standard ID: GB/T 27594-2011 (GB/T27594-2011)
Description (Translated English): Disperse dyestuffs -- Determination of relative strength of press cakes -- Spectrophotometer method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 6,631
Date of Issue: 2011-12-05
Date of Implementation: 2012-03-01
Quoted Standard: GB/T 2374-2007; GB/T 6682-2008
Regulation (derived from): Announcement of Newly Approved National Standards No. 19 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 spectrophotometric determination of the relative intensity of disperse dyes former general method. This standard applies to disperse law is obeyed in the original determination of the relative intensity of the dye.

GB/T 27594-2011: Disperse dyestuffs -- Determination of relative strength of press cakes -- Spectrophotometer 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.
Disperse dyestuffs. Determination of relative strength of presscakes. Spectrophotometer method ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of the relative strength of the dye disperse dye Issued on. 2011-12-05 2012-03-01 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. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized. This standard was drafted. Shenzhen Technology Co., Ltd. standard color dye, Shenyang Chemical Research Institute Co., Ltd. The main drafters of this standard. Wang Yong, Liangpei Ji, Wu Jiuying. Determination of the relative strength of the dye disperse dye

1 Scope

This standard specifies the spectrophotometric determination of the relative strength of disperse dyes former general method. This standard applies to the determination of Beer's Law disperse dye relative intensity of the original.

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. General conditions GB/T 2374-2007 Determination of dyes provisions GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) Principle 3 The dye disperse dye and the standard samples dissolved in a particular solvent, the absorption was measured with a spectrophotometer at the wavelength of maximum absorption Luminosity values. According to Lang Bo - Beer's Law, we can calculate the relative strength of the original dye.

4 instruments and equipment

Instruments and equipment shall comply with the relevant provisions of GB/T 2374-2007 in Chapter 4. a) spectrophotometer; b) electric heated oven; c) Analytical balance. accuracy 0.0001g; d) cuvette. glass or quartz, optical path length of 10mm; e) volumetric flask. 500mL, 100mL; f) a single marking straw. 1mL, 2mL.

5 Reagents and materials

Reagents and materials shall comply with the relevant provisions of GB/T 2374-2007 in Chapter 3; test water should comply with GB/T 6682-2008 The three water requirements. a) in dimethylformamide (DMF) an acidic solution. 1mL per liter of concentrated sulfuric acid was added in DMF, mixed thoroughly; b) Dimethyl formamide (DMF) solution. DMF to water volume ratio 8.2, pH was adjusted to 5.5 after mixing. ......

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