1、Designation: D808 11Standard Test Method forChlorine in New and Used Petroleum Products (HighPressure Decomposition Device Method)1This standard is issued under the fixed designation D808; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revi
2、sion, 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 Department of Defense.1. Scope*1.1 This test method c
3、overs the determination of chlorine inlubricating oils and greases, including new and used lubricat-ing oils and greases containing additives, and in additiveconcentrates. Its range of applicability is 0.1 to 50 m% chlo-rine. The procedure assumes that compounds containing halo-gens other than chlor
4、ine will not be present.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.2.1 The preferred units are mass percent.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It
5、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. Attention is calledto specific warning statements incorporated in the test method.2. Referenced Documents2.1 ASTM Standards
6、:2D1193 Specification for Reagent WaterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System Performance3. Summary of Test Method3.1 The sample is oxidized
7、 by combustion in a high pressuredecomposition device containing oxygen under pressure.(WarningStrict adherence to all of the provisions prescribedhereinafter ensures against explosive rupture of the highpressure decomposition device, or a blow-out, provided thehigh pressure decomposition device is
8、of proper design andconstruction and in good mechanical condition. It is desirable,however, that the high pressure decomposition device beenclosed in a shield of steel plate at least 13 mm (12 in.) thick,or equivalent protection be provided against unforeseeablecontingencies.) The chlorine compounds
9、 thus liberated areabsorbed in a sodium carbonate solution and the amount ofchlorine present is determined gravimetrically by precipitationas silver chloride.4. Significance and Use4.1 This test method may be used to measure the level ofchlorine-containing compounds in petroleum products. Thisknowle
10、dge can be used to predict performance or handlingcharacteristics of the product in question.4.2 This test method can also serve as a qualitative tool forthe presence or non-detection of chlorine in petroleum prod-ucts. In light of the efforts in the industry to prepare chlorinefree products, this t
11、est method would provide informationregarding the chlorine levels, if any, in such products.5. Apparatus5.1 High Pressure Decomposition Device, having a capacityof not less than 300 mL, so constructed that it will not leakduring the test, and that quantitative recovery of the liquidsfrom the high pr
12、essure decomposition device may be readilyachieved. The inner surface of the high pressure decompositiondevice may be made of stainless steel or any other material thatwill not be affected by the combustion process or products.Materials used in the high pressure decomposition deviceassembly, such as
13、 the head gasket and lead-wire insulation,shall be resistant to heat and chemical action, and shall notundergo any reaction that will affect the chlorine content of theliquid in the high pressure decomposition device.5.2 Sample Cup, platinum, 24 mm in outside diameter at thebottom, 27 mm in outside
14、diameter at the top, 12 mm in heightoutside, and weighing 10 to 11 g.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.03 on Elemental Analysis.Current edition approved Oct. 1, 2011. Published Oct
15、ober 2011. Originallyapproved in 1944. Last previous edition approved in 2005 as D80805. DOI:10.1520/D0808-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the st
16、andards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.3 Firing Wire, platinum, No. 26B high pressure decomposition deviceA
17、PPENDIX(Nonmandatory Information)X1. QUALITY CONTROLX1.1 Confirm the performance of the instrument or the testprocedure by analyzing a QC sample.X1.2 Prior to monitoring the measurement process, the userof the method needs to determine the average value and controllimits of the QC sample (see Practi
18、ce D6299 and MNL 7).5X1.3 Record the QC results and analyze by control chartsor other statistically equivalent techniques to ascertain thestatistical control status of the total testing process (see PracticeD6299 and MNL 7).5Any out-of-control data should triggerinvestigation for root cause(s).X1.4
19、In the absence of explicit requirements given in thetest method, the frequency of QC testing is dependent on thecriticality of the quality being measured, the demonstratedstability of the testing process, and customer requirements.Generally, a QC sample is analyzed each testing day withroutine sampl
20、es. The QC frequency should be increased if alarge number of samples are routinely analyzed. However,when it is demonstrated that the testing is under statisticalcontrol, the QC testing frequency may be reduced. The QCsample precision should be checked against the ASTM methodprecision to ensure data
21、 quality.X1.5 It is recommended that, if possible, the type of QCsample that is regularly tested be representative of the materialroutinely analyzed. An ample supply of QC sample materialshould be available for the intended period of use, and must behomogenous and stable under the anticipated storag
22、e condi-tions. See Practice D6299 and MNL 75for further guidance onQC and Control Charting techniques.SUMMARY OF CHANGESSubcommittee D02.03 has identified the location of selected changes to this standard since the last issue(D80805) that may impact the use of this standard.(1) Replaced the word “bo
23、mb” throughout the test methodwith the phrase “high pressure decomposition device.”5MNL 7, Manual on Presentation of Data Control Chart Analysis,6thed.,ASTM International, W. Conshohocken, PA.D808 114ASTM International takes no position respecting the validity of any patent rights asserted in connec
24、tion with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsib
25、le technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful con
26、sideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100
27、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D808 115
