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GB/T 3676-2020 English PDF

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Q: Should I purchase the latest version GB/T 3676-2020?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3676-2020 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.

US$249.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3676-2020: Maleic anhydride for industrial use
Status: Valid

GB/T 3676: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3676-2020	249	Add to Cart	3 days	Maleic anhydride for industrial use	Valid
GB/T 3676-2008	359	Add to Cart	3 days	Maleic anhydride for industrial use	Obsolete
GB 3676-1992	239	Add to Cart	2 days	Maleic anhydride	Obsolete

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Basic data

Standard ID: GB/T 3676-2020 (GB/T3676-2020)
Description (Translated English): Maleic anhydride for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G16
Classification of International Standard: 71.080.50
Word Count Estimation: 13,192
Date of Issue: 2020-03-31
Date of Implementation: 2021-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 3676-2020: Maleic anhydride for industrial use

---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.
Maleic anhydride for industrial use ICS 71.080.50 G16 National Standards of People's Republic of China Replace GB/T 3676-2008 Industrial maleic anhydride 2020-03-31 release 2021-02-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 3676-2008 "Maleic anhydride for industrial use", compared with GB/T 3676-2008, except for editorial changes The main technical content changes outside are as follows. --- In the technical requirements, the products are divided into maleic anhydride (solid state) and maleic anhydride (liquid state), and the superior and qualified products are eliminated (See 3.2, version 3.2 in.2008); --- The main content of maleic anhydride (solid) was revised to 99.5%, and the main content of maleic anhydride (liquid) was revised to 99.6% (see 3.2, 2008 version 3.2); --- The melting color of maleic anhydride (solid) type Ⅰ after heating is modified to 70, and the melting of maleic anhydride (liquid) type Ⅰ after heating The color fusion is revised to 60, type Ⅱ is reserved "confirmed by both parties of supply and demand" (see 3.2, version 3.2 of.2008); --- The mass fraction of iron (calculated as Fe) was modified to 2 μg/g (see 3.2, 3.2 in the.2008 edition); --- The melting chromaticity, crystallization point and burning residue are changed from the original excellent product index value to the type I and type II index values (see 3.2,.2008 Annual version 3.2); --- Added the analytical method for determining the main content of maleic anhydride by gas chromatography (see 4.3.2); --- Modified the method of determination of melting chromaticity and melting chromaticity after heating and the result judgment (see 4.4 and 4.8,.2008 version 4.3 and 4.7); --- Melting chroma heating melting method is modified from water bath heating to no specified heating method (see 4.4 and 4.5,.2008 version 4.3 and 4.4); --- Increased maleic anhydride (liquid) sampling, packaging, transportation and storage regulations (see 5.3, 6.2.2, 6.3.2 and 6.4.2); --- Added informational appendix "Safety" (see Appendix B). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63). This standard was drafted by. Ningbo Zhetie Jiangning Chemical Co., Ltd., Sinopec Yizheng Chemical Fiber Co., Ltd., Zibo Qixiang Tengdahua Industrial Co., Ltd., Tangshan Huayi Industrial Co., Ltd., Puyang Shengyuan Energy Technology Co., Ltd., China Petroleum & Chemical Corporation Co., Ltd. Beijing Chemical Research Institute, Jinling Liliansi Resin Co., Ltd. The main drafters of this standard. Tao Danyu, Chen Zhiming, Zhu Shujun, Hou Yahui, Lu Hongyong, Gao Jing, Mao Xuegang, Zhu Xiaohui, Zhang Chunfeng, Liu Geqin, Bai Lu, He Tianyu, Yang Xiaojun, Tong Leilei, Zu Xiangyang. The release of the previous versions of the standard replaced by this standard are. --- GB/T 3676-1983, GB/T 3676-2008. Industrial maleic anhydride Warning-This standard does not indicate all possible safety issues. The user is responsible for taking appropriate safety and health measures and ensuring that The certificate complies with the conditions stipulated by relevant national regulations.

1 Scope

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of maleic anhydride for industrial use. This standard applies to maleic dianhydride prepared by catalytic oxidation of benzene or n-butane. Molecular formula. C4H2O3 Structural formula. Relative molecular mass. 98.056 (according to.2016 international relative atomic mass)

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB 190 Dangerous Goods Packaging Mark Preparation of GB/T 601 chemical reagent standard titration solution GB/T 603 Preparation of preparations and products used in chemical reagent test methods GB/T 3049 General method for determination of iron content in industrial chemical products 1,10-phenanthroline spectrophotometry GB/T 4456 Polyethylene blown film for packaging GB/T 6324.7 Test Methods for Organic Chemical Products Part 7. Determination of Melt Color GB/T 6678-2003 General rules for sampling chemical products GB/T 6679 General Rules for Sampling of Solid Chemical Products GB/T 6680 General Rules for Sampling of Liquid Chemical Products GB/T 6682 Analysis laboratory specifications and test methods GB/T 7531 Determination of ignition residues of organic chemical products GB/T 7533 Determination method of crystallization point of organic chemical products GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 8946 General technical requirements for plastic woven bags GB/T 9722 General Principles of Gas Chromatography for Chemical Reagents

3 Requirements

3.1 Appearance. Solid maleic anhydride is white, slightly yellow lumpy or flake crystals, and liquid maleic anhydride is colorless, slightly yellow transparent Bright liquid, no visible impurities. 3.2 Maleic anhydride for industrial use shall meet the technical requirements shown in Table 1. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3676-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3676-2020_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 3676-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3676-2020_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 3676-2020?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3676-2020 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.