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GB/T 41075-2021 English PDF

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US$119.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41075-2021: Fluorescent whitening agent - Determination of migration properties
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41075-2021	119	Add to Cart	3 days	Fluorescent whitening agent - Determination of migration properties	Valid

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Basic data

Standard ID: GB/T 41075-2021 (GB/T41075-2021)
Description (Translated English): Fluorescent whitening agent - Determination of migration properties
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Word Count Estimation: 5,525
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41075-2021: Fluorescent whitening agent - Determination of migration properties

---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.
Fluorescent whitening agent -- Determination of migration properties ICS 71:100:01; 87:060:10 CCSG55 National Standards of People's Republic of China Determination of the mobility of fluorescent whitening agents Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Petroleum and Chemical Industry Federation: This document is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134): This document is drafted by: Zhejiang Chuanhua Huayang Chemical Co:, Ltd:, Guangdong Demei Fine Chemical Group Co:, Ltd:, Shenzhen Color Label Dyestuff Technology Co:, Ltd:, Shenyang Shenhua Institute Testing Technology Co:, Ltd:, Xiamen Hanjunke Testing Technology Co:, Ltd:, Shenyang Chemical Research Institute Co:, Ltd:, Transfar Zhilian Co:, Ltd:, National Dyestuff Quality Supervision and Inspection Center: The main drafters of this document: Ma Yanli, Dong Zhongsheng, Huang Shangdong, Liang Peiji, Feng Li, Xue Yan, Zhao Ting, Zhang Guoping, Ma Junqing, Chen Zufen, Tan Cheng, Huang Wei, Ji Lanqin: Determination of the mobility of fluorescent whitening agents

1 Scope

This document specifies the method summary, reagents and materials, instruments and equipment, measurement procedures, and test reports for the determination of the migration of optical brighteners: This document applies to the determination of the mobility of optical brighteners:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 250-2008 Textile color fastness test gray sample card for evaluating discoloration GB/T 2374-2017 General conditions for the determination of dyestuffs GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 9338 Determination of relative whiteness of fluorescent whitening agents by instrument GB/T 23979:1-2009 Determination of brightening intensity and shade of fluorescent whitening agent for cotton fabric dyeing method

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 Migration migrationproperty During the dyeing process, the ability of the optical brightener on the fiber to transfer from the high concentration position to the low concentration position through the dye solution: Note: Fluorescent whitening agents with good migration are easy to obtain level dyeing: 3:2 Migration levelofmigration The migration of fluorescent whitening agent expressed in numerical value is the percentage of the whiteness value of the original white fabric after migration and the whiteness value of the whitened fabric after migration:

4 Method summary

4:1 Dye the whitened fabric with fluorescent whitening agent according to the specified method, and then take 2 g each of the whitened fabric and the unwhitened original white fabric, and put them in a blank bath: Carry out transfection: 4:2 Grade the whitened fabric after migration and the original white fabric after migration with a gray sample card, or use a colorimeter to measure the difference between the whitened fabric after migration and the original white fabric after migration: The discoloration level of the original white fabric after migration, or after measuring the whiteness value of the whitened fabric after migration and the white fabric after migration with a colorimeter, calculate Calculate the mobility to determine the mobility of optical brighteners:

5 Reagents and Materials

The reagents and materials used shall comply with the provisions in Chapter 3 of GB/T 2374-2017: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41075-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41075-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 41075-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41075-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.