ASTM D7399 - 08 Standard Test Method for Determination of the Amount of Polypropylene (PP) in PolypropyleneLDPE Mixtures Using Infrared Spectrophotometer (FTIR) (Withdrawn 2017).pdf
《ASTM D7399 - 08 Standard Test Method for Determination of the Amount of Polypropylene (PP) in PolypropyleneLDPE Mixtures Using Infrared Spectrophotometer (FTIR) (Withdrawn 2017).pdf》由会员分享,可在线阅读,更多相关《ASTM D7399 - 08 Standard Test Method for Determination of the Amount of Polypropylene (PP) in PolypropyleneLDPE Mixtures Using Infrared Spectrophotometer (FTIR) (Withdrawn 2017).pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7399 08Standard Test Method forDetermination of the Amount of Polypropylene (PP) inPolypropylene/LDPE Mixtures Using InfraredSpectrophotometer (FTIR)1This standard is issued under the fixed designation D7399; the number immediately following the designation indicates the year oforigina
2、l adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method uses an infrared approach for deter-mining the pr
3、esence of polypropylene (PP) physically mixed inwith low density polyethylene usually for recycling purposes.NOTE 1Quantitative determinations require several standard mixturesin the concentration range of interest and well defined baseline anchoringpoints.1.2 This standard does not purport to addre
4、ss all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 2There is no known ISO equivalent to this standard.2.
5、 Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2238 Test Methods forAbsorbance of Polyethylene Due toMethyl Groups at 1378 cm1D5033 Guide for Development ofASTM Standards Relatingto Recycling and Use of Recyc
6、led Plastics (Withdrawn2007)3E131 Terminology Relating to Molecular SpectroscopyE168 Practices for General Techniques of Infrared Quanti-tative AnalysisE932 Practice for Describing and Measuring Performance ofDispersive Infrared SpectrometersE1421 Practice for Describing and Measuring Performanceof
7、Fourier Transform Mid-Infrared (FT-MIR) Spectrom-eters: Level Zero and Level One TestsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System3. Terminology3.1 DefinitionsFor definitions of plastics terms used inthis test method, see Terminology standards D
8、883, D1600, andD5033.3.2 TerminologyUnits, symbols, and abbreviations used inthis test method appear in Terminology E131 or IEEE/ASTMSI-10.4. Summary of Test Method4.1 Thin films representing a typical portion of the materialare analyzed with an IR spectrophotometer using two absor-bance bandsone ch
9、aracteristic for polypropylene (PP) andone for low density polyethylene (LDPE). The ratio of thesetwo absorbencies is used to assess the presence of polypropyl-ene.4.2 For quantitative determinations, several standards withknown concentrations of PP in LDPE bracketing the range ofinterest are needed
10、 to develop a calibration curve. Also,baseline placement shall be defined to produce repeatableresults.5. Significance and Use5.1 In recycling PP and LDPE, it is important to the endproduct properties as well as to the processing conditions toknow what the purity of the mixture is. In many cases, it
11、 is vitalto know that the recycled material is reasonably free of acontaminant.6. Interferences6.1 Presence of materials other than PPor LDPE in a samplemight cause error in measurement.6.2 Inhomogeneous sample is known to cause false reading.It is recommended to verify sample homogeneity by measuri
12、ngdifferent areas of the sample.1This test method is under the jurisdiction ofASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.70 on Analytical Methods.Current edition approved Sept. 1, 2008. Published September 2008. DOI:10.1520/D7399-08.2For referenced ASTM standa
13、rds, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copy
14、right ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesNOTICE: This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International (www.astm.org) for the latest information17. Apparatus7.1 Infrared Spect
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTM D7399 08 Standard Test Method for Determination of the Amount Polypropylene PP in PolypropyleneLDPE Mixtures Using Infrared Spectrophotometer FTIR Withdrawn 2017

链接地址:http://www.mydoc123.com/p-286993.html