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GB/T 23961-2023 English PDF

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US$419.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23961-2023: Determination of low carbon aliphatic amines - Gas chromatographic method
Status: Valid

GB/T 23961: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23961-2023	419	Add to Cart	4 days	Determination of low carbon aliphatic amines - Gas chromatographic method	Valid
GB/T 23961-2009	128	Add to Cart	1 days	Determination of low carbon aliphatic amines -- Gas chromatographic method	Obsolete

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Basic data

Standard ID: GB/T 23961-2023 (GB/T23961-2023)
Description (Translated English): Determination of low carbon aliphatic amines - Gas chromatographic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.30
Word Count Estimation: 22,224
Date of Issue: 2023-09-07
Date of Implementation: 2024-04-01
Older Standard (superseded by this standard): GB/T 23961-2009
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 23961-2023: Determination of low carbon aliphatic amines - Gas chromatographic 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.
ICS 71.080.30 CCSG15 National Standards of People's Republic of China Replace GB/T 23961-2009 Determination of low-carbon fatty amine content gas chromatography Published on 2023-09-07 2024-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 23961-2009 "Gas Chromatography Method for Determination of Low-Carbon Fatty Amine Content" and is consistent with GB/T 23961-2009 In addition to structural adjustments and editorial changes, the main technical changes are as follows. ---The minimum detection content has been added to the range (see Chapter 1); ---Changed the chromatographic analysis conditions (see Chapter 8, 3.5 of the.2009 edition); ---The calculation formula has been changed (see Chapter 10, 3.7 of the.2009 edition); ---Added relative correction factor reference value list (see Appendix A). Please note that some content in this document may be subject to patents. The publisher 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 Chemical Standardization Technical Committee (SAC/TC63). This document was drafted by. Zhejiang Jianye Chemical Co., Ltd., Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Sinopec (Beijing) Chemical Industrial Research Institute Co., Ltd., Shandong Siwei Safety Production Technology Center, Mining and Metallurgy Technology Group Co., Ltd., Zhejiang Shaxing Technology Co., Ltd. company. The main drafters of this document. Zhong Jiusheng, Li Yanli, Huang Yu, Li Long, Zhang Hua, Yu Penngling, Zhu Yangge, Zhao Yumei, Song Yanhong, Li Shihui, Chang Lixia, Wu Guiye, Li Hongjun, Liu Chongjun. This document was first published in.2009 and this is the first revision. Determination of low-carbon fatty amine content gas chromatography Warning---This document is not intended to address all safety issues related to its use. It is the user's responsibility to take appropriate safety and health precautions health measures and ensure compliance with relevant national laws and regulations.

1 Scope

This document describes the gas chromatography method for the determination of main content and organic impurity content in 15 low-carbon fatty amine products. This document applies to monoethylamine, diethylamine, triethylamine, monoisopropylamine, diisopropylamine, mono-n-propylamine, and di-n-propylamine produced by the alcohol ammoniation process. Amine, tri-n-propylamine, mono-n-butylamine, di-n-butylamine, tri-n-butylamine, mono-isobutylamine, diisobutylamine, mono-sec-butylamine, di-sec-butylamine, and ketone amination process Determination of the main content and organic impurity content of the prepared monoisopropylamine, diisopropylamine, mono-sec-butylamine and di-sec-butylamine. The minimum detectable content is 0.01% (mass fraction).

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 3723 General Safety Principles for Sampling Industrial Chemical Products GB/T 6678 General principles for sampling of chemical products GB/T 6680 General rules for sampling of liquid chemical products GB/T 8170 Numerical rounding rules and representation and determination of limit values GB/T 9722 General rules for gas chromatography with chemical reagents

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Method summary

Under the selected working conditions, the sample is vaporized in the vaporization chamber and passes through the capillary chromatographic column, so that each component in the sample is effectively separated. Isolation was detected using a hydrogen flame ionization detector and quantified using the calibrated area normalization method.

5 Reagents and materials

5.1 Hydrogen. the volume fraction is not less than 99.99%, dried and purified by silica gel and molecular sieves. 5.2 Nitrogen. the volume fraction is not less than 99.99%, dried and purified by silica gel and molecular sieves. 5.3 Air. oil-free, dried and purified by silica gel and molecular sieves. 5.4 Standard reagents. used to prepare calibration mixed solutions. See Table A.1 in Appendix A for the reagents used and specifications. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23961-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23961-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 23961-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23961-2023_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.

Question 5: Should I purchase the latest version GB/T 23961-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23961-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.