1、Designation:D156805(Reapproved 2014)Standard Test Methods forSampling and Chemical Analysis of AlkylbenzeneSulfonates1This standard is issued under the fixed designation D1568;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、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.Scope1.1 These test methods cover the sampling and chemicalanalysis of paste,powder,or liquid detergent alkylbenzenesulfonates.1.
3、2 The procedures for sampling and analysis appear in thefollowing order:SectionsSampling:Powders and Flakes Packed in Cans or Cartons3Powders and Flakes in Bulk4Liquids6Pastes7Hazards8Preparation of Sample9Moisture:Distillation Method11 14Karl Fischer Method15 20Total Matter Insoluble in Alcohol21 2
4、3Neutral Oil24 27Chlorides Calculated as Sodium Chloride(NaCl)28 31pH321.3 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 a
5、pplica-bility of regulatory limitations prior to use.For a specifichazards statement,see Section 8.2.Referenced Documents2.1 ASTM Standards:2D1172 Guide for pH of Aqueous Solutions of Soaps andDetergentsD1193 Specification for Reagent WaterSAMPLING3.General Requirements3.1 The seller shall have the
6、option of being represented atthe time of sampling and when he so requests shall befurnished with a duplicate sample.4.Powders and Flakes Packed in Cans or Cartons4.1 One can or carton shall be taken at random from not lessthan 1%of the sellers shipping containers,provided eachpackage contains not l
7、ess than 50 lb(22.7 kg).In the case ofsmaller containers,a can or carton shall be taken at randomfrom each lot of containers totaling not more than 5000 lb(2268 kg)or fraction thereof.The gross sample shall in allcases consist of not less than three cans or cartons taken atrandom from separate conta
8、iners.In the case of very large lotswhere the sample drawn as above will amount to more than 20lb(9.1 kg),the percentage of packages sampled shall bereduced so that the amount drawn will not exceed 20 lb(9.1kg).The individual cans or cartons shall be tightly wrapped atonce in paraffined paper and se
9、aled by rubbing the edges witha heated iron.The inspector shall accurately weigh eachwrapped can or carton and record its weight and the date ofweighing on the wrapper.The wrapped cans or cartons shall beplaced in an airtight container which should be nearly filled,and which shall then be sealed,mar
10、ked,and sent to thelaboratory for test.Samples shall be kept cool until tested.5.Powders and Flakes in Bulk5.1 A grab sample of not less than 0.5 lb(227 g)shall betaken at random from not less than 1%of the sellers shippingcontainers,provided each package contains not less than 100 lb(45.4 kg).In th
11、e case of smaller containers,a grab sample ofnot less than 0.5 lb(227 g)shall be taken at random from eachlot of containers totaling not more than 10,000 lb(4536 kg)orfraction thereof.The gross sample shall in all cases consist ofnot less than three grab samples of 0.5 lb(227 g)each taken atrandom f
12、rom separate containers.In the case of very large lotsthe sample drawn as above will amount to more than 20 lb(9.1kg),the percentage of packages sampled shall be reduced sothat the amount drawn shall not exceed 20 lb(9.1 kg).Theinspector shall rapidly mix the gross sample and place it in an1These te
13、st methods are under the jurisdiction of ASTM Committee D12 onSoaps and Other Detergentsand is the direct responsibility of D12.12 on Analysisand Specifications of Soaps,Synthetics,Detergents and their Components.Current edition approved Jan.1,2014.Published February 2014.Originallyapproved in 1958.
14、Last previous edition approved in 2005 as D1568 05.DOI:10.1520/D1568-05R14.2For 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
15、 website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 airtight container which shall be filled,sealed,marked,accu-rately weighed,with its weight and the date of weighingrecorded on the package,and be sent to the laboratory for test.Sam
16、ples shall be kept cool until tested.6.Liquids6.1 A sample of not less than 0.5 pt(236.6 mL)shall betaken at random from not less than 1%of the sellers shippingcontainers,provided each package contains not less than 10 gal(37.9 L).In the case of smaller containers,a sample of not lessthan 0.5 pt(236.6 mL)shall be taken at random from each lotof containers totaling not more than 1000 gal(3785.4 L)orfraction thereof.The gross sample shall in all cases consist ofnot less than three samples of 0.5 p
