ASTM D2318-2015 Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch《煤焦油和硬沥青中喹啉不溶物 (QI) 含量的标准试验方法》.pdf
《ASTM D2318-2015 Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch《煤焦油和硬沥青中喹啉不溶物 (QI) 含量的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D2318-2015 Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch《煤焦油和硬沥青中喹啉不溶物 (QI) 含量的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D2318 141D2318 15Standard Test Method forQuinoline-Insoluble (QI) Content of Tar and Pitch1This standard is issued under the fixed designation D2318; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTEEditorial changes were made throughout the test method in September 2014.1. Scope*1.1 This test method covers the determination of t
3、he quinoline-insoluble matter (QI) in tar and pitch.1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 This standard d
4、oes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. For hazards information, see Sectio
5、n 7.2. Referenced Documents2.1 ASTM Standards:2D71 Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)D95 Test Method for Water in Petroleum Products and Bituminous Materials by DistillationD329 Specification for AcetoneD362 Specification for Industrial Grade Toluene (W
6、ithdrawn 1989)3D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related MaterialsD4296 Practice for Sampling PitchD7280 Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch by Stainless Steel Crucible FiltrationE1 Specification for ASTM Liquid-in-Glass Thermomet
7、ersE11 Specification for Woven Wire Test Sieve Cloth and Test Sieves3. Summary of Test Method3.1 The sample is digested in hot quinoline and filtered. The insoluble material is washed, dried, and weighed.4. Significance and Use4.1 This test method is useful in evaluating and characterizing tar and p
8、itch, and as one element in establishing the uniformityof shipments and sources of supply.5. Apparatus5.1 Filtering Crucibles, porcelain, with fine-porosity bottom, 25 mL to 40 mL capacity, high-form, maximum pore diameter, 7m.5.2 Filter ApparatusFilter flask and tube with crucible adapter.5.3 Sieve
9、sU. S. Standard 600 m (No. 30) and 250 m (No. 60), conforming to Specification E11.5.4 Electric Hot Plate or Water Bath, maintained at 75 C 6 5 C.1 This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of S
10、ubcommitteeD02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.Current edition approved May 1, 2014Dec. 1, 2015. Published May 2014December 2015. Originally approved in 1964. Last previous edition approved in 20132014 asD2318 98 (2013).D2318 141. DOI: 10.1520/D2318-14E01.10.1520/D2318-
11、15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is
12、 referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends
13、that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
14、t Conshohocken, PA 19428-2959. United States16. Reagents and Materials6.1 Quinoline, Refined, meeting the following requirements:6.1.1 The quinoline shall distill from 5 % to 95 % within a range of 2 C that shall include the temperature of 237.4 C aftercorrections for barometric pressure and emergen
15、t stem have been applied. The distillation shall be carried out in accordance withTest Method D850 using a total immersion thermometer with a range from 195 C to 305 C, graduated in 0.5 C, and conformingto the requirements for Thermometer 69C as described in Specification E1. Temperature measuring d
16、evices such as precisionthermocouples, resistance temperature detectors (RTDs), and liquid-in-glass thermometers with equal or better accuracies in theappropriate temperature range may be used.6.1.2 The quinoline shall have a specific gravity at 15.5/15.5 C of 1.092 to 1.098, as determined by Test M
17、ethod D71, or othermethod of equivalent accuracy.6.1.3 The quinoline shall be clear and light in color and shall contain less than 0.5 % volume of water as determined by TestMethod D95. If not, redistill the quinoline in all-glass apparatus, discarding the first 5 % and collecting the next 90 %. If
18、thequinoline contains suspended matter but is clear, light in color, and contains less than 0.5 % water, filter the quinoline through acrucible containing 5 g of Celite Filter Aid.6.1.4 Store the quinoline in a tightly closed, dark bottle.6.2 Toluene, Industrial Pure, meeting Specification D362.6.3
19、Acetone, meeting Specification D329.6.4 Concentrated Hydrochloric Acid.6.5 Celite Analytical Filter Aid (CAFA)Dry to constant weight at 105 C, and store in tightly stoppered container.6.5.1 Do not use any other grade of filter aid because filtration characteristics may differ. CAFA is manufactured o
20、nly byManville Co. and distributed through scientific supply houses.7. Hazards7.1 Fumes of the solvents should be removed by means of proper hoods from all working areas. The working area should bekept free of sparks and flames. Quinoline fumes should not be inhaled, and prolonged contact with the s
21、kin should be avoided.Toluene is toxic and flammable.7.2 Observe proper laboratory procedures for handling hydrochloric and diluting acid.8. Bulk Sampling8.1 Samples from shipments shall be taken in accordance with Practice D4296 and shall be free of foreign substances.Thoroughly mix the sample imme
22、diately before removing a representative portion for the determination or for dehydration.9. Dehydration of Sample9.1 Hard PitchIf the solid bulk sample contains free water, air-dry a representative portion in a forced draft oven at 50 C.9.2 Soft PitchIf the presence of water is indicated by surface
23、 foam on heating, maintain a representative portion of the bulksample at a temperature between 125 C and 150 C in an open container until the surface is free of foam. Take care not tooverheat, and remove heat source immediately when foam subsides.9.3 TarA wet tar sample may either be dehydrated or u
24、sed as received as long as conditions stated in 9.3.1 and 9.3.2 are met.9.3.1 Dehydrate a representative portion of the bulk sample at atmospheric pressure using a simple side-arm distillationapparatus similar to the one in Test Method D850 and stop the distillation when the temperature reaches 170
- 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
10000 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:
- ASTMD23182015STANDARDTESTMETHODFORQUINOLINEINSOLUBLEQICONTENTOFTARANDPITCH 煤焦油 硬沥青 喹啉 不溶物 QI 含量 标准 试验

链接地址:http://www.mydoc123.com/p-511437.html