|
US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40323-2021: Determination of octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 40323-2021 | English | 279 |
Add to Cart
|
3 days [Need to translate]
|
Determination of octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
| Valid |
GB/T 40323-2021
|
PDF similar to GB/T 40323-2021
Basic data | Standard ID | GB/T 40323-2021 (GB/T40323-2021) | | Description (Translated English) | Determination of octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G70 | | Word Count Estimation | 14,189 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 40323-2021: Determination of octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
---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 octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
ICS 71.100.40
CCSG70
National Standards of People's Republic of China
Octamethyl ring in textile dyeing and finishing auxiliaries
Tetrasiloxane (D4), decamethylcyclopentasiloxane (D5)
And determination of dodecamethylcyclohexasiloxane (D6)
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
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"
Drafting.
Please note that some of the contents of this document may involve patents. The publishing agency of this article does not bear the responsibility for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134).
This document was drafted by. Transchem Zhilian Co., Ltd., Hangzhou Transchem Fine Chemical Co., Ltd., Lufeng Weaving and Dyeing Co., Ltd., Nanjing Hai
Guan Industrial Product Testing Center, Fujian Fiber Testing Center, Zhejiang Transchem Functional New Material Co., Ltd.
The main drafters of this document. Zhao Ting, Zhao Mei, Zhou Jiahai, Lu Ke, Wu Gehui, Xu Yi, Yuan Biyun, Zhang Zhanqi, Ding Youchao, Zhu Feng, Zhao Lihui,
Guo Fei, Zhong Weihao, Yu Yingzhen, Bian Li, Wang Yandi.
Octamethyl ring in textile dyeing and finishing auxiliaries
Tetrasiloxane (D4), decamethylcyclopentasiloxane (D5)
And determination of dodecamethylcyclohexasiloxane (D6)
Warning---The personnel using this document should have practical experience in formal laboratory work. This document does not indicate all possible safety issues
question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.
1 Scope
This document specifies the content of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in textile dyeing and finishing auxiliaries.
test methods.
This document applies to octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in textile dyeing and finishing auxiliaries.
Determination.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
document.
GB/T 8170-2008 Numerical rounding rules and the expression and determination of limit values
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Method 1.Gas Chromatography (GC) Method
4.1 Principle
Dissolve the sample with a mixed solvent of n-hexane and isopropanol, add acid to inhibit octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethyl
The decomposition of cyclohexasiloxane was determined by gas chromatography equipped with a hydrogen flame ionization detector (FID) and quantified by an external standard method.
4.2 Reagents or materials
Unless otherwise specified, only use reagents confirmed to be analytically pure.
4.2.1 Standard products of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. purity ≥96.0% (mass fraction),
See Appendix A.
4.2.2 n-hexane.
4.2.3 Isopropanol.
4.2.4 Acetic acid. ≥99.5% (mass fraction).
4.2.5 Mixed solvent. The volume ratio of n-hexane and isopropanol is 1.1.
4.2.6 Acetic acid isopropanol solution. The volume ratio of acetic acid to isopropanol is 1.9.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 40323-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 40323-2021_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 40323-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 40323-2021_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+ countriesQuestion 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 [email protected]. 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.
|