1、Designation:D157095(Reapproved 2009)Standard Test Methods forSampling and Chemical Analysis of Fatty Alkyl Sulfates1This standard is issued under the fixed designation D1570;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 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 fatty alkylsulfates.1.2 The
3、 procedures for sampling and analysis appear in thefollowing order:SectionsSampling:Powders and Flakes Packed in Cans or Cartons4Powders and Flakes in Bulk5Liquids6Pastes7Preparation of Sample8Moisture by the Distillation Test Method11 14pH15Alkalinity16 19Alcohol-Soluble Matter20 22Alcohol-Insolubl
4、e Matter23 and24Unsulfated Material25 28Combined Alcohols29 32Ester SO3:Method A.Titration Test Method36 and37SectionsEster SO3:Method B.Gravimetric Test Method38 and39Sodium Sulfate40 43Chlorides Calculated as Sodium Chloride(NaCl)44 471.3 The values stated in either inch-pound or SI units are tobe
5、 regarded separately as the standard.The values given inparentheses are for information only.1.4 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 practic
6、es and determine the applica-bility of regulatory limitations prior to use.Material SafetyData Sheets are available for reagents and materials.Reviewthem for hazards prior to usage.2.Referenced Documents2.1 ASTM Standards:2D216 Method for Distillation of Natural GasolineD1172 Guide for pH of Aqueous
7、 Solutions of Soaps andDetergentsD1193 Specification for Reagent WaterSAMPLING3.General Requirement3.1 The seller shall have the 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 Take
8、 one can or carton at random from not less than 1%of the sellers shipping containers,provided each packagecontains not less than 50 lb(22.7 kg).In the case of smallercontainers,take a can or carton at random from each lot ofcontainers totaling not more than 5000 lb(2268 kg)or fractionthereof.The gro
9、ss sample shall in all cases consist of not lessthan three cans or cartons taken at random from separatecontainers.In the case of very large lots where the sampledrawn as above will amount to more than 20 lb(9.1 kg),reducethe percentage of packages sampled so that the amount drawnwill not exceed 20
10、lb(9.1 kg).Tightly wrap the individual cansor cartons at once in paraffined paper and seal by rubbing theedges with a heated iron.The inspector shall accurately weigheach wrapped can or carton and record its weight and the dateof weighing on the wrapper.Place the wrapped cans or cartons1These test m
11、ethods are under the jurisdiction of ASTM Committee 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 December 2009.Originallyapprove
12、d in 1958 as D1570 58 T.Last previous edition approved in 2003 asD1570 95(2003).DOI:10.1520/D1570-95R09.2For 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 Doc
13、ument Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 in an airtight container,which should be nearly filled,andwhich shall then be sealed,marked,and sent to the laboratoryfor test.Samples shall be kept coo
14、l until tested.5.Powders and Flakes in Bulk5.1 Take a grab sample of not less than 0.5 lb(227 g)atrandom from not less than 1%of the sellers shippingcontainers,provided each package contains not less than 100 lb(45.4 kg).In the case of smaller containers,take a grab sampleof not less than 0.5 lb(227
15、 g)at random from each lot ofcontainers 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 from separate containers.In the case of very large lotswhere the sample drawn as abov
16、e will amount to more than 20lb(9.1 kg),reduce the percentage of packages sampled so thatthe amount drawn shall not exceed 20 lb(9.1 kg).Theinspector shall rapidly mix the gross sample and place it in anairtight 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.Samples shall be kept cool until tested.6.Liquids6.1 Take a sample of not less than 0.5 pt(236.6 mL)atrandom from not l