GB/T 33401-2016 English PDFUS$119.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33401-2016: Determination of the urea in liquid fluorescent whitening agent products Status: Valid
Basic dataStandard ID: GB/T 33401-2016 (GB/T33401-2016)Description (Translated English): Determination of the urea in liquid fluorescent whitening agent products Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G55 Classification of International Standard: 71.100.01; 87.060.10 Word Count Estimation: 6,660 Date of Issue: 2016-12-30 Date of Implementation: 2017-07-01 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 GB/T 33401-2016: Determination of the urea in liquid fluorescent whitening agent products---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 the urea in liquid fluorescent whitening agent products ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of Urea Content in Liquid Fluorescent Brightener Products 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 ForewordThis 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. Zhejiang Huaxuan Huayang Chemical Co., Ltd., Guangdong Demei Fine Chemical Co., Ltd., Shanxi Castle Peak Chemical has Limited company, Shenyang Chemical Industry Research Institute Co., Ltd., China Chemical Economic and Technological Development Center, the State Dye Quality Supervision and Inspection Center. The main drafters of this standard. Pu Aijun, Xu Longhe, Ma Yanli, Gan Hongyu, Ji Lanqin, Xue Yan, Cai Dinghan, Zhao Faabao, Zhu Lina. Determination of Urea Content in Liquid Fluorescent Brightener Products WARNING - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.1 ScopeThis standard specifies the determination method of urea content in liquid fluorescent whitening agent. This standard is applicable to the determination of urea in liquid fluorescent whitening agent.2 normative reference documentsThe 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 6682 Analytical laboratory water specifications and test methods Representation and Judgment of Numerical Correction Rule and Limit Value in GB/T 8170-20083 Determination method3.1 General provisions Unless otherwise specified, only the reagents identified as analytical reagents and the tertiary water specified in GB/T 6682 are used. The result of the test is determined 4.3.3 revision value comparison method in GB/T 8170-2008. 3.2 Principles Liquid fluorescent whitening agent sample dissolved in water, the use of high performance liquid chromatography, methanol and water mixed solution for its relative flow And the response value was measured at the wavelength of 195 nm. The urea content was quantitatively determined by the peak area external standard method. 3.3 Reagents and solutions 3.3.1 Methanol. Chromatographic Purification. 3.3.2 Water. filtered through 0.45μm water film. 3.3.3 urea standard. content ≥ 99% (mass fraction). 3.4 Instruments and equipment 3.4.1 High Performance Liquid Chromatograph. Equipped with variable wavelength detector. 3.4.2 column. a length of 150mm, diameter 4.6mm stainless steel column, the fixed phase for the ODSC18, particle size 5μm. 3.4.3 Chromatographic Workstation or Integrator. 3.4.4 Ultrasonic generator. 3.4.5 Micro-syringe or autosampler. 3.5 chromatographic conditions 3.5.1 Mobile phase. volume ratio of methanol to water = 5.95. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33401-2016_English be delivered?Answer: Upon your order, we will start to translate GB/T 33401-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 33401-2016_English with my colleagues?Answer: Yes. 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