ASTM D1481-2017 Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer《用利普金双毛细管比重计测定粘性材料密度和相对密度(比重)的标准试验方法》.pdf
《ASTM D1481-2017 Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer《用利普金双毛细管比重计测定粘性材料密度和相对密度(比重)的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1481-2017 Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer《用利普金双毛细管比重计测定粘性材料密度和相对密度(比重)的标准试验方法》.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D1481 12D1481 17Standard Test Method forDensity and Relative Density (Specific Gravity) of ViscousMaterials by Lipkin Bicapillary Pycnometer1This standard is issued under the fixed designation D1481; the number immediately following the designation indicates the year oforiginal adoption
2、 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. Scope*1.1 This test method covers the determination of the density of oils more visco
3、us than 15 cStmm2 at 20C (mm/s (cSt) at20 C,2/s), and of viscous oils and melted waxes at elevated temperatures, but not at temperatures at which the sample would havea vapor pressure of 100 mm Hg (13 kPa) 13.3 kPa (100 mmHg) or above.NOTE 1To determine the densities of less viscous liquids at 2020
4、C or 25C25 C use Test Method D1217.1.2 This test method provides a calculation procedure for converting density to relative density (specific gravity).1.3 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause centralnervous system, kidney and liver dam
5、age. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Cautionshould be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet(MSDS)(SDS) for details and EPAs websitehttp:/www.epa.gov/mercury/faq.htmfor additiona
6、l information. Users should beaware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4.1 ExceptionOther units of
7、measurement are included in this standard for information only.1.5 This standard does 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 applic
8、ability of regulatorylimitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the Wor
9、ld Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D1217 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham PycnometerD1250 Guide for Use of the Petroleum Measurement TablesD4052 Test Method for Density, Rel
10、ative Density, and API Gravity of Liquids by Digital Density Meter3. Terminology3.1 Definitions:3.1.1 density, nmass per unit volume at a specified temperature. D40523.1.2 relative density (specific gravity), nthe ratio of the density of a material at a stated temperature to the density of waterat a
11、 stated temperature. D40521 This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.04.0D on Physical and Chemical Methods.Current edition approved Nov. 1, 2012June 1, 2017. Publ
12、ished December 2012July 2017. Originally approved in 1957. Last previous edition approved in 20072012 asD148102(2007).D1481 12. DOI: 10.1520/D1481-12.10.1520/D1481-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual B
13、ook of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.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 tech
14、nically possible to adequately depict all changes accurately, ASTM recommends 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
15、 standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Summary of Test Method34.1 The liquid is drawn into the bicapillary pycnometer through the removable siphon arm and adjusted to volume at thetemperature of test, in such a ma
16、nner that there is practically no drainage in the unfilled tubing. After equilibration at the testtemperature, liquid levels are read, and the pycnometer is removed from the thermostated bath, cooled to room temperature, andweighed.4.2 Density or relative density (specific gravity), as desired, is t
17、hen calculated from the volume at the test temperature and theweight of the sample. The effect of air buoyancy is included in the calculations.5. Significance and Use5.1 Density is a fundamental physical property that can be used in conjunction with other properties to characterize both thelight and
18、 heavy fractions of petroleum and to access the quality of crude oils.5.2 Determination of the density or relative density of petroleum and its products is necessary for the conversion of measuredvolumes to volumes at the standard temperatures of 15C.15 C.5.3 The determination of densities at the el
19、evated temperatures of 4040 C and 100C100 C is particularly useful in providingthe data needed for the conversion of kinematic viscosities in centistokes (mm2/s) to the corresponding dynamic viscosities incentipoises (mPas).6. Apparatus6.1 Pycnometer4Aside-arm type of pycnometer conforming to the di
20、mensions given in Fig. 1 and made of borosilicate glass.The weight shall not exceed 35 g 35 g without the side arm.6.2 RackA rack to use in filling the pycnometer (see Fig. 2).6.3 Constant-Temperature OvenAn oven for use in filling the pycnometer. Any oven capable of holding the filling rack, andof
21、maintaining a temperature of approximately 100C,100 C, can be used.6.4 Constant-Temperature BathAmixture of water and glycerin, or oil bath having a depth of at least 305 mm (12 in.) 305 mm(12 in.) and provided with heating, stirring, and thermostating devices adequate to maintain desired temperatur
22、es in the range from2020 C to 100C100 C with an accuracy of 60.01C.60.01 C.3 For a more complete discussion of this procedure, see Lipkin, M. R., Mills, I. W., Martin, C. C., and Harvey, W. T., Analytical Chemistry, ANCHA, Vol 21, 1949, p.504.4 The sole source of supply of the pycnometers known to t
23、he committee at this time is Reliance Glass Co., 220 Gateway Rd., Bensenville, IL 60106-0825 have been foundsatisfactory. 60106-0825. If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive carefulconsideration at a me
24、eting of the responsible technical committee,1 which you may attend.FIG. 1 PycnometerD1481 1726.5 Bath ThermometersThermometers graduated in 0.1C0.1 C subdivisions and standardized for the range of use to thenearest 0.01C0.01 C (ASTM Saybolt Viscosity Thermometers 17C to 22C are recommended). For mo
- 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:
- ASTMD14812017STANDARDTESTMETHODFORDENSITYANDRELATIVEDENSITYSPECIFICGRAVITYOFVISCOUSMATERIALSBYLIPKINBICAPILLARYPYCNOMETER

链接地址:http://www.mydoc123.com/p-509874.html