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ASTM D6474-20
2020
Standard Test Method for Determining Molecular Weight Distribution and Molecular Weight Averages of Polyolefins by High Temperature Gel Permeation Chromatography
- Format:
- Language(s) :
- Published :
- English
- 04/01/2020
1.1 This test method covers the determination of molecular weight distributions and molecular weight averages of polyolefins by high temperature gel permeation chromatography (GPC). This test method uses commercially available polystyrene standards and equipment and is applicable to polyethylenes (excluding high pressure low density polyethylene (LDPE) and ultra-high molecular weight polyethylene (UHMWPE)) and polypropylenes soluble in 1,2,4-trichlorobenzene (TCB) at 140°C. This test method is not absolute and requires calibration.
Note 1: Size exclusion chromatography (SEC) often is used as an alternative name for gel permeation chromatography (GPC).
Note 2: Specific methods and capabilities of users may vary with differences in columns, instrumentation, applications software, and practices between laboratories.
Note 3: One general method is outlined herein; alternative analytical practices can be followed and are attached in notes where appropriate.
Note 4: There is no known ISO equivalent to this standard.
1.2 The values stated in SI units, based on IEEE/ASTM S1-10, are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| ASTM D6474-20 | |
|---|---|
| STANDARD INFO: | |
| Standard Name | ASTM D6474-20 |
| Scope | Standard Test Method for Determining Molecular Weight Distribution and Molecular Weight Averages of Polyolefins by High Temperature Gel Permeation Chromatography |
| Publisher | ASTM - ASTM International |
| Languages | English |
| State | |
| Publication Year | 2020 |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| File Size | 1 file , 100 KB |
| Note | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages | 6 |
| Published | 04/01/2020 |
| Redline File Size | 2 files , 190 KB |
| ASTM D6474-20 | ||
|---|---|---|
| History | Publisher Year | |
| ASTM D6474-20 | 2020 | Current |
| ASTM D6474-19 | 2019 | |
| ASTM D6474-12 | 2012 | |
| ASTM D6474-99(2006) | 2006 | |
| ASTM D6474-99 | 1999 |
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