ASTM D4047-2018 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method《喹啉磷钼酸盐法测定润滑油和添加剂中磷的标准试验方法》.pdf
《ASTM D4047-2018 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method《喹啉磷钼酸盐法测定润滑油和添加剂中磷的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D4047-2018 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method《喹啉磷钼酸盐法测定润滑油和添加剂中磷的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D4047 18Designation: 149/93Standard Test Method forPhosphorus in Lubricating Oils and Additives by QuinolinePhosphomolybdate Method1This standard is issued under the fixed designation D4047; the number immediately following the designation indicates the year oforiginal adoption or, in t
2、he 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.
3、1 This test method covers the determination of 0.005 % to10.0 % by mass phosphorus in unused lubricating oil andadditive concentrates. There is no reason to doubt its applica-bility to filtered, used lubricating oils, but no systematic studyof this application has been made.1.2 The test method is ap
4、plicable to samples containing anyof the phosphorus compounds in normal use.NOTE 1This test method extends the scope of the previous version ofIP 149 and replaces IP 148 and the previous version of IP 149 as a refereemethod.1.3 This test method is free from most interferences becausethe high insolub
5、ility of the quinoline phosphomolybdate pre-cipitate leads to constant composition and freedom from mostadsorbed or occluded impurities, especially from cations whichwould otherwise interfere in the subsequent titration of theprecipitate.1.4 Barium, calcium, magnesium, zinc, iron, aluminum,alkali sa
6、lts, citric acid and citrates, chromium up to 18 timesthe phosphorus content, and titanium up to 3.5 times do notinterfere with the test method.1.5 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.6 This standard does not purpo
7、rt to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For specific hazard statements,
8、 see 6.9.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBa
9、rriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD6299 Practice for Applying Statistical Quality
10、 Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System Performance2.2 IP Standard:IP 148 Test Method for Phosphorous in Lubricating Oilsand Additives33. Summary of Test Method3.1 Additive concentrates are diluted with phosphorus-freewhite oil to produce a working blend.3.
11、2 The sample is ignited with excess of zinc oxide wherebyphosphorus is converted to phosphate. The residue is dissolvedin hydrochloric acid and any sulfide formed is oxidized withpotassium bromate. Phosphorus is then precipitated as quino-line phosphomolybdate and determined volumetrically byadditio
12、n of excess standard alkali and back titration withstandard acid.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.03 on Elemental Analysis.Current edition approved April 1, 2018. P
13、ublished April 2018. Originallyapproved in 1981. Last previous edition approved in 2013 as D4047 13. DOI:10.1520/D4047-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, ref
14、er to the standards Document Summary page onthe ASTM website.3Available from Energy Institute, 61 New Cavendish St., London, W1G 7AR,U.K., http:/www.energyinst.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
15、Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trad
16、e Organization Technical Barriers to Trade (TBT) Committee.14. Significance and Use4.1 Knowledge of the phosphorus content, and thus thephosphorus-containing additives, in a lubricating oil or addi-tive can be used to predict performance characteristics.5. Apparatus5.1 Silica Crucibles, 40 mm intern
17、al diameter at the top and40 mm in height. The internal surface should be smooth andfree from pitting.5.2 Muffle Furnace, capable of maintaining a temperature ofapproximately 700 C, and fitted with ports to allow aircirculation.5.3 Beakers, 25 mL capacity.5.4 Filtering Apparatus, a filter flask of c
18、apacity 500 mL,provided with a glass crucible adapter fitted in a rubber bungtogether with a rubber sleeve.5.5 Gooch Crucible, porcelain, 35 mm diameter at the top,or a filter funnel fitted with a porcelain filter disk of approxi-mately 20 mm diameter.5.6 Filter Pad, approximately 20 mm diameter.6.
19、Reagents and Materials6.1 Purity of ReagentsReagent grade chemicals shall beused in all tests. Unless otherwise indicated, it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents of the American Chemical Society,where such specifications are avail
20、able.4Other grades may beused, provided it is first ascertained that the reagent is ofsufficiently high purity to permit its use without lessening theaccuracy of the determination.6.2 Purity of WaterUnless otherwise indicated, referencesto water shall be understood to mean reagent water as definedby
21、 Type II or Type III of Specification D1193.6.3 Hydrochloric Acid, approximately 1 N reagent solution.6.4 Hydrochloric Acid (36 % by mass)Concentrated hy-drochloric acid (HCl).6.5 Hydrochloride Acid, (0.1 N)Hydrochloric acid (HCl)accurately standardized.6.6 Mixed IndicatorMix 2 volumes of phenolphth
22、aleinsolution with 3 volumes of thymol blue solution.6.7 Phenolphthalein Solution, (1 g L in 95 % volume etha-nol).6.8 Potassium Bromate (KBrO3), solid.6.9 Quinoline (WarningQuinoline has a high toxic acutesystemic rating.)Redistilled synthetic or, if this isunobtainable, quinoline freshly distilled
23、 from the technicalproduct. Collect the colorless distillate in the boiling rangefrom 232 C to 238 C. Store the quinoline in an amber bottlein the dark.6.10 Quinoline Hydrochloride SolutionDissolve 20 mL ofquinoline in 800 mL of hot water acidified with 25 mL ofconcentrated HCl; add a little paper p
24、ulp, cool, filter, and makeup to 1 L with water. This solution is stable for about 1 month.6.11 Sodium Hydroxide Solution (0.1 M)Sodium hydrox-ide (NaOH) accurately standardized.6.12 Sodium Molybdate SolutionDissolve 10 g of sodiumhydroxide (NaOH) and 18 g of ammonia-free molybdenumtrioxide in 200 m
- 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。
最后一页预览完了!喜欢就下载吧,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:
- ASTMD40472018STANDARDTESTMETHODFORPHOSPHORUSINLUBRICATINGOILSANDADDITIVESBYQUINOLINEPHOSPHOMOLYBDATEMETHOD

链接地址:http://www.mydoc123.com/p-516142.html