1、Designation:D433789(Reapproved 2009)Standard Test Methods forAnalysis of Linear Detergent Alkylates1This standard is issued under the fixed designation D4337;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、 number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover chemical and physical testsapplicable to linear detergent alkylates,evaluating those prop-erties which characteri
3、ze linear detergent alkylates with respectto its suitability for desired uses.NOTE1Linear detergent alkylates comprises linear alkylbenzenesprepared by varying processes of varying linear alkyl chain length.Thealkylate is sulfonated for surfactant use,the largest application being indetergent produc
4、ts.Careful control of linear detergent alkylate character-istics is desired;during sulfonation,variations of the sulfonate can occurthat may result in either desirable or undesirable end-use properties.1.2 The test methods appear as follows:SectionComposition by Gas Chromatography7 15Chlorides16 27C
5、olor28 30Refractive Index31 33Specific Gravity34 36Water37 391.3 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-bil
6、ity of regulatory limitations prior to use.Material SafetyData Sheets are available for reagents and materials.Reviewthem for hazards prior to usage.See also Note 1 and Section21.2.Referenced Documents2.1 ASTM Standards:2D270 Methods of Sampling Petroleum and Petroleum Prod-ucts(Withdrawn 1984)3D112
7、2 Test Method for Density or Relative Density ofEngine Coolant Concentrates and Engine Coolants By TheHydrometerD1193 Specification for Reagent WaterD1209 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)D1218 Test Method for Refractive Index and RefractiveDispersion of Hydrocarbon Liqui
8、dsD1364 Test Method for Water in Volatile Solvents(KarlFischer Reagent Titration Method)E180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Industrial and Spe-cialty Chemicals(Withdrawn 2009)33.Significance and Use3.1 These test methods are suitable for setting spe
9、cificationson linear detergent alkylates and for quality control wherethese alkylates are manufactured or are used in a manufactur-ing process.3.2 The gas chromatography test is useful in identifyinglinear detergent alkylates produced by the various manufactur-ing processes and for determining the a
10、pplicability of a lineardetergent alkylate to a particular end use.Test conditions havebeen optimized for resolution of the C-9 to C-15 lineardetergent alkylates and the presence of higher or lower chainlengths will be readily apparent but may produce erroneousresults.The tetralin structures have no
11、t been sufficientlyidentified to allow determination of tetralins,and small uniden-tified components are reported as tetralins and unidentifieds.3.3 Some linear detergent alkylates use a manufacturingprocess with an organic chloride as a precursor.This test maybe used to ensure that the chloride con
12、tent of the alkylate is notexcessive for a particular end use.3.4 The platinum-cobalt color test is useful in determiningthat the color of the linear detergent alkylate will not contributeto the color of the end use product.3.5 The refractive index and specific gravity tests arepossible aids in the
13、identification of linear detergent alkylatesand in evaluating alkylates for gross contaminants.3.6 The water test is suitable for determining that lineardetergent alkylates do not contain amounts of water deleteriousto further processing.1These test methods are under the jurisdiction of ASTM Committ
14、ee D12 onSoaps and Other Detergents and are the direct responsibility of SubcommitteeD12.12 on Analysis and Specifications of Soaps,Synthetics,Detergents and theirComponents.Current edition approved Oct.1,2009.Published March 2010.Originallyapproved in 1984.Last previous edition approved in 2003 as
15、D4337 89(2003).DOI:10.1520/D4337-89R09.2For 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.3The last approved version
16、of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Purity of Reagents4.1 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 onAnalytical Reagents of theAmerican Chemical Society,4where such specifications are available.Other grades may beused,provided
