GB/T 36214.4-2018 English PDF

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GB/T 36214.4-2018: Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36214.4-2018	304	Add to Cart	3 days	Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method	Valid

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Basic data

Standard ID: GB/T 36214.4-2018 (GB/T36214.4-2018)
Description (Translated English): Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G31
Classification of International Standard: 83.080.20
Word Count Estimation: 16,126
Date of Issue: 2018-05-14
Date of Implementation: 2018-12-01
Regulation (derived from): National Standards Announcement No. 6 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36214.4-2018: Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature 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.
(Plastics - Determination of the average molecular weight and molecular weight distribution of polymers by size exclusion chromatography - Part 4. High temperature method) ICS 83.080.20 G31 National Standards of People's Republic of China Determination of polymer by plastic volume exclusion chromatography Average molecular weight and molecular weight distribution Part 4. High temperature method Part 4. High-temperaturemethod (ISO 16014-4.2012, IDT) Published on.2018-05-14 2018-12-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 36214 "Plastics volume exclusion chromatography for the determination of the average molecular weight and molecular weight distribution of polymers" is divided into five parts. --- Part 1. General; --- Part 2. Universal Correction Method; --- Part 3. Low temperature method; --- Part 4. High temperature method; --- Part 5. Light scattering method. This part is the fourth part of GB/T 36214. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the translation method equivalent to ISO 16014-4.2012 "plastic volume exclusion chromatography to determine the average molecular weight of the polymer. And molecular weight distribution Part 4. High temperature method. This section has made the following editorial changes. --- Appendix C supplements the test conditions and test results of the precision test. This part was proposed by the China Petroleum and Chemical Industry Federation. This part is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15). This section drafted by. Guangzhou Quality Supervision and Inspection Institute, Tongdao Technology Chengdu Co., Ltd., China Petroleum and Chemical Corporation Beijing Yanshan Branch Resin Application Research Institute, Beijing Puli Taike Instrument Co., Ltd., China National Petroleum Corporation Petrochemical Co., Ltd. Research Institute, Zhonglan Chengdu Testing Technology Co., Ltd. The main drafters of this section. Pan Yonghong, Wang Wanju, Li Jun, Chen Hongyuan, Zhang Lin, Tian Lijuan, Wang Li, Yi Jianjun, Sun Lijun, Zu Fenghua, Luo Xiaoxia, Xu Jing, He Guoshan, Chen Minjian. Determination of polymer by plastic volume exclusion chromatography Average molecular weight and molecular weight distribution Part 4. High temperature method

1 Scope

This part of GB/T 36214 specifies the use of organic eluents at 60 ° C ~ 180 ° C, by volume exclusion chromatography (SEC) A method of determining the average molecular weight and molecular weight distribution of a polymer. Calculate the average molecular weight and fraction based on the calibration curve constructed from the polymer standard The sub-quantity distribution, therefore the test method is a relative method (see Appendix A and Appendix A of GB/T 36214.1-2018).

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 36214.1-2018 Determination of the average molecular weight and molecular weight distribution of polymers by volume exclusion chromatography Points. General (ISO 16014-1.2012, IDT) ISO 472 plastic terminology and its definition (Plastics-Vocabulary) ISO 16014-2 Determination of average molecular weight and molecular weight distribution of polymers by volume exclusion chromatography - Part 2. General Plastics-Determination ofaveragemolecularmassandmolecularmassdistributionofpolymers usingsize-exclusionchromatography-Part 2.Universalcalibrationmethod)

3 Terms and definitions

The terms and definitions defined by ISO 472 and GB/T 36214.1-2018 apply to this document.

4 Principle

See Chapter 4 of GB/T 36214.1-2018.

5 reagents

5.1 eluent The general requirements for eluents are given in 5.1 of GB/T 36214.1-2018. See Appendix B for examples of eluents used in SEC equipment above 60 °C. 5.2 Evaluation of column reagents See 5.2 of GB/T 36214.1-2018. Several low molecular weight compounds can be used, such as diphenylmethane or 1,2,4-trichloro when using 1,2-dichlorobenzene as eluent Ethylbenzene can be used as the eluent for benzene. ......

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