1、Designation:D 38 94(Reapproved 2000)e1Standard Test Methods forSampling Wood Preservatives Prior to Testing1This standard is issued under the fixed designation D 38;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last rev
2、ision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon(e)indicates an editorial change since the last revision or reapproval.e1NOTEA keyword was added editorially in March 2000.1.Scope1.1 These test methods cover sampling of creosote,creosote-coal tar solutions,creoso
3、te-petroleum solutions,andoilborne and waterborne preservatives.NOTE1See Specification D 390,for Coal-Tar Creosote for thePreservative Treatment of Piles,Poles,and Timbers for Marine,Land,andFresh Water Use,2Specification D 391 for Creosote-Coal Tar Solution,2and Specification D 1858,for Creosote-Pe
4、troleum Solution.21.1.1 Creosote and creosote solutions are homogeneousliquids,except for their moisture content.At atmospherictemperatures,however,part of the creosote is usually incrystalline form,and shall be heated to a temperature at whichit is entirely liquid before sampling.1.1.1.1 When sampl
5、ing creosote and creosote solutions,theobject is to obtain a sample that will be representative of thewater content,and the methods of sampling described areintended to accomplish that purpose.1.1.2 Recommended test methods are given for sampling apreservative in a liquid or solid state and in the s
6、everal types ofcontainers in which they are likely to be encountered.Creosote,creosote-coal tar,and creosote-petroleum solutions may be inthe form of a liquid or semiliquid.Oilborne and waterbornepreservatives may be in the solid state,in concentrated solu-tions,or in ready-to-use solutions.1.2 This
7、 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.2.Referenced Documents2.1
8、ASTM Standards:D 95 Test Method for Water in Petroleum Products andBituminous Materials by Distillation2D 168 Test Method for Coke Residue of Creosote3D 246 Test Method for Distillation of Creosote andCreosote-Coal Tar Solutions3D 346 Practice for Collection and Preparation of CokeSamples for Labora
9、tory Analysis4D 367 Test Method for Xylene-Insoluble Matter in Creo-sote3D 368 Test Method for Specific Gravity of Creosote andOil-Type Preservatives3D 369 Test Method for Specific Gravity of Creosote Frac-tions and Residues3D 370 Test Method for Dehydration of Oil-Type Preserva-tives3D 1033 Methods
10、 of Chemical Analysis of Chromated ZincChloride3D 1035 Test Methods for Chemical Analysis of Fluor-Chrome-Arsenate-Phenol3D 1274 Test Methods for Chemical Analysis of Pentachlo-rophenol3D 1326 Methods for Chemical Analysis of AmmoniacalCopper Arsenate3D 1627 Methods for Chemical Analysis of Acid Cop
11、perChromate3D 1628 Test Methods for Chemical Analysis of ChromatedCopper Arsenate3D 3176 Practice for Ultimate Analysis of Coal and Coke4D 3180 Practice for Calculating Coal and Coke Analysesfrom As-Determined to Different Bases43.Significance and Use3.1 The test methods described are for use in obt
12、ainingrepresentative samples of wood preservatives under mostphases of shipment,use,or storage.Since these materials mayhave to be sampled under varying conditions,it is not possibleto provide a definite standard for each type of wood preserva-tive under every sampling condition.Individual cases may
13、have to be worked out by the sampler on the basis ofjudgement,skill,and experience.The basic principle of each1These test methods are under the jurisdiction of ASTM Committee D07 onWood and are the direct responsibility of Subcommittee D07.06 on Treatments forWood Products.Current edition approved J
14、uly 15,1994.Published September 1994.Originallypublished as D 38 15 T.Last previous edition D 38 79(1989).2Annual Book of ASTM Standards,Vol 05.01.3Annual Book of ASTM Standards,Vol 04.10.4Annual Book of ASTM Standards,Vol 05.05.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Co
15、nshohocken,PA 19428-2959,United States.method,however,is to obtain a sample or a composite ofseveral samples in such manner and from such locations in thecontainer that the sample or composite will be truly represen-tative of the material being sampled.4.Apparatus4.1 Continuous-Drip Sampling:4.1.1 L
16、ine Connectionconstructed substantially as shownin Fig.1 shall be inserted in the pipeline through which thepreservative is being transferred,preferably on the dischargeside of the pump.The sampling pipe shall be provided with avalve.4.1.2 ReceiverUse a clean,dry container of convenientsize to receive the sample.The container shall be covered witha lid to protect the sample from foreign contamination.Creosote,creosote-coal tar solutions,and creosote-petroleumsolutions may become semisolid as the
