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SN/T 3002-2011: Determination of relative molecular weight and molecular weight distribution of polyethylene. Gel permeation chromatography method
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Determination of relative molecular weight and molecular weight distribution of polyethylene. Gel permeation chromatography method
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Basic data | Standard ID | SN/T 3002-2011 (SN/T3002-2011) | | Description (Translated English) | Determination of relative molecular weight and molecular weight distribution of polyethylene. Gel permeation chromatography method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080 | | Word Count Estimation | 9,968 | | Date of Issue | 2011-09-09 | | Date of Implementation | 2012-04-01 | | Quoted Standard | GB/T 21864; ASTM D883; ASTM E685 | | Adopted Standard | ASTM D6474-1996 (2006), MOD | | Regulation (derived from) | National Quality Inspection (2011) 492; industry standard filing Notice 2012 No. 4 (No. 148 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the polyethylene (except high pressure low density polyethylene) relative molecular weight and molecular weight distribution of the gel permeation chromatographic method. This standard applies at 140��C dissolved in 1, 2, 4 trichlorobenzene polyethylene (except high pressure low density polyethylene) relative to the determination of molecular weight and molecular weight distribution. | SN/T 3002-2011: Determination of relative molecular weight and molecular weight distribution of polyethylene. Gel permeation chromatography method
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Determination of relative molecular weight and molecular weight distribution of polyethylene.Gel permeation chromatography method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of relative molecular weight polyethylene and the molecular weight distribution
Gel permeation chromatography
(ASTMD6474.1999 (2006) Standardtestmethodfordeterminingmolecular
temperaturegelpermeationchromatographymethod, MOD)
Issued on. 2011-09-09
2012-04-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This revised standard adopts ASTMD6474.1999 (2006) "polyolefin molecular weight distribution and average molecular testing methods High Temperature Gel
Permeation chromatography. "
This standard ASTMD6474.1999 (2006) compared to made the following modifications.
--- Scope of this standard polyethylene molecular weight distribution and average molecular weight determination, ASTMD6474.1999 Scope of poly
Ethylene and polypropylene molecular weight distribution and average molecular weight determination;
--- Remove ASTMD6474.1999 (2006) Chapter 5, Section 9, Chapter 10 and Chapter 17;
--- This document Chapters 3 and 4 correspond to the ASTMD6474.1999 (2006) of Chapters 3 and 4;
--- Increased 5.1 Chapter 5 of this document and 5.4,5.2,5.7,5.8 correspond to the ASTM D6474.1999 (2006) of
8.1,8.2,12.2,12.1,5.5 and 5.6 corresponds to ASTMD6474.1999 (2006) of 8.3;
--- Chapter 6 of this document correspond to the increased 6.2,6.1 ASTMD6474.1999 (2006), Chapter 7;
--- This document corresponds to 7.1 ASTMD6474.1999 (2006) of Chapter 13;
--- This document is up 7.2 Gel permeation chromatography working conditions;
--- This document corresponds to 7.3 ASTMD6474.1999 (2006) of Chapter 14;
--- 7.4.1 of this document correspond to ASTMD6474.1999 (2006) of 15.2 and 12.3;
--- This document is increased 7.4.2;
--- This document 7.4.3,7.4.5 correspond to ASTMD6474.1999 (2006) of 15.3,15.6;
--- 7.4.4 of this document correspond to ASTMD6474.1999 (2006) of 15.4 and 15.5;
--- Chapter 8 of this document correspond to ASTMD6474.1999 (2006) of Chapter 16;
--- Chapter 9 of the document increases.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Guangdong Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this standard. Miao Wenbin Jiang Wei, Chen Xiang, Lee Jun, Zhu Hongkun, Wanghai Ting, Yao Lifang, Wei Yufeng, Li Wei.
Determination of relative molecular weight polyethylene and the molecular weight distribution
Gel permeation chromatography
1 Scope
This standard specifies the polyethylene (except high pressure low density polyethylene) gel permeation chromatography relative molecular weight and molecular weight distribution
method.
This standard applies to 140 ℃ when dissolved in 1,2,4-trichlorobenzene polyethylene (except high pressure low density polyethylene) Molecular weight and molecular
Determination of the amount of the distribution.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Standard Methods GB/T 21864 polystyrene average molecular weight and molecular weight distribution of High Performance Size Exclusion Chromatography
(ASTMD5296.2005, Standardtestmethodformolecularweightaveragesandmolecularweightdis-
tributionofpolystyrene-Highperformancesize-exclusionchromatography, IDT)
ASTMD883 plastic Definition
ASTME685 liquid chromatography using a standard fixed wavelength photometric detection means Experimental Practice
3 Terms and Definitions
ASTMD883 define the following terms and definitions apply to this document.
3.1
Polyolefin polyolefin
This standard polyolefin is polyethylene (except high pressure low density polyethylene) and polypropylene.
3.2
Polyethylene polyethylene, PE
4. Summary
Polyethylene samples were dissolved in a solvent injection column packed with a solid matrix, separated according to the order of the polymer molecules in solution. when
The concentration of molecules based on their molecular weight to detect and record separation when the column was rinsed out. By the calibration curve, the retention time can be converted to
Molecular weight. Average molecular weight and molecular weight distribution calculated from the concentration data obtained.
5 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade.
5.1 2,6-di-t-butyl-4-methylphenol.
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