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GB/T 36899-2018 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 36899-2018: Fluorescent whitening agents -- Determination of yellow spots
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36899-2018	119	Add to Cart	3 days	Fluorescent whitening agents -- Determination of yellow spots	Valid

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Basic data

Standard ID: GB/T 36899-2018 (GB/T36899-2018)
Description (Translated English): Fluorescent whitening agents -- Determination of yellow spots
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01;87.060.10
Word Count Estimation: 6,652
Date of Issue: 2018-12-28
Date of Implementation: 2019-11-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36899-2018: Fluorescent whitening agents -- Determination of yellow spots

---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 agents--Determination of yellow spots ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of yellowing point of fluorescent whitening agent Published on.2018-12-28 2019-11-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134). This standard was drafted. Zhejiang Chuanhua Huayang Chemical Co., Ltd., Guangdong Demei Fine Chemical Group Co., Ltd., China Chemical Industry Ji Technology Development Center, Shenyang Chemical Research Institute Co., Ltd., National Dyestuff Quality Supervision and Inspection Center. The main drafters of this standard. Dong Zhongsheng, Song Yanru, Chen Zufen, Xue Yan, Ma Junqing, Zhu Yeqing, Zhao Fabao, Wang Yong. Determination of yellowing point of fluorescent whitening agent

1 Scope

This standard specifies the method for determining the yellowing point of fluorescent whitening agents. This standard is applicable to the determination of yellowing point of fluorescent whitening agent for cotton, nylon and paper.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2374-2017 General conditions for the determination of dyes GB/T 9338-2008 Determination of relative whiteness of fluorescent whitening agents (ISO 105-J02..1997, MOD)

3 Principle

Fluorescent whitening agent dyes the substrate (cotton, nylon, paper) at a certain depth, when the fluorescent whitening agent reaches a certain depth After the value, the whiteness value of the matrix no longer increases with the increase of the dyeing depth, and the dyeing depth of the fluorescent whitening agent corresponding to the highest whiteness value is Yellowing point.

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. 5.1 Whiteness meter. Meet the requirements of GB/T 9338-2008. 5.2 Analytical balance. Sensitivity 0.0001g.

6 Test methods

6.1 General conditions for dyeing General conditions for dyeing should comply with the relevant provisions of GB/T 2374-2017. 6.2 Dyeing depth According to the fluorescent whitening agent, the dyeing (whitening) method is different for different substrates, and the dyeing depth has the following two representations. a) Dip dyeing depth is expressed in % (owf); b) Dyeing dyeing depth is expressed in g/L. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 36899-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 36899-2018_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 36899-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 36899-2018_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.