ASTM_D_808_-_11.pdf

Designation:D80811Standard 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 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 Department of Defense.1.Scope*1.1 This test method covers 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 chlorine 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 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: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 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 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(12in.)thick,or equivalent protection be provided against unforeseeablecontingencies.)The chlorine compounds 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.Thisknowledge 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 test 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 pressure 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 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 diameter at the top,12 mm in heightoutside,and weighing 10 to 11 g.5.3 Firing Wire,platinum,No.26 B&S gage 0.41(16thou),27 SWG or equivalent.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 October 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 standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.4 Ignition Circuit,capable of supplying sufficient currentto ignite the nylon thread or cotton wicking without melting thewire.5.4.1 The switch in the ignition circuit shall be of a type thatremains open,except when held in closed position by theoperator.5.5 N