1、Designation:D334517Standard Test Method forLaboratory Evaluation of Solid Wood for Resistance toTermites1This standard is issued under the fixed designation D3345;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revis
2、ion.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 This test method covers the laboratory evaluation oftreated or untreated solid wood for its resistance to subterra-nean termites.This
3、 test is considered as a screening test fortreated material and further evaluation by field methods isrequired.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety co
4、ncerns,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.(WarningSee7.1.4.)2.Referenced Documents2.1 ASTM Standards:2D1413 Test Method for W
5、ood Preservatives by LaboratorySoil-Block Cultures(Withdrawn 2016)32.2 Other Documents:4AWPA E10 Testing Wood Preservatives by Laboratory Soil-Block Cultures3.Choice or No-Choice Methodology3.1 There are two types of basic information that can beobtained from termite bioassays:3.1.1 Choice test data
6、-termites are presented with multiplefeeding targets and preferential mass loss indicates a materialpreference over an alternative food source.3.1.2 No-choice data-termites are presented with a singularchoice and mass loss indicates ability of the insect to consumethe material.In no-choice data,mort
7、ality data is needed todetermine dose mortality based on consumption of the testmaterial,which is often treated with suspected insecticidalcompounds.3.2 Both choice and no-choice tests shall be permitted whenevaluating materials for resistance to subterranean termites asthe different tests address d
8、ifferent behavioral responses of thetermites.4.Apparatus4.1 Containers,Glass or Clean Plastic,with loosely fittingtops with liners removed,220 to 450 cm3(8 to 16 oz).4.1.1 If volatile chemicals are to be tested,a 4.8 mm(No.12or approximately316in.)hole is drilled in the center of the topand the appr
9、opriate solvent controls shall be included astreatments to identify possible solvent/carrier effects.4.2 Tray,enamel,stainless steel,or plastic,0.25 m by 0.51m(10 by 20 in.)and bucket.4.3 Paper Towels.5.Reagents and Materials5.1 Benzalkonium Chloride Solution(1+750)Add 1 partbenzalkonium chloride to
10、 750 parts water.A comparablesurface antiseptic is satisfactory.5.2 Distilled Water.5.3 Sand,brown or white,screened,washed,and heat-sterilized.5.4 Southern Yellow Pine(SYP)(Pinus spp.)measuring 25.4mm(1.00 in.)square by 6.4 mm(0.25 in.)in the tangentialdirection.Sapwood,no visible defects,smoothed
11、surfacesequivalent to planed or sanded,2 to 3 rings/cm(4 to 6rings/in.).All test samples shall come from same parent board.5.4.1 Other wood species may be used,but in each separatetest using other species as the major test wood,five SYPsapwood blocks shall be used as additional controls to permitthe
12、 correlation of test results among laboratories.5.5 Subterranean TermitesUse a major common speciesof the region being studied.1This test method is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D07.06 on Treatments for WoodProducts.Current editi
13、on approved Jan.1,2017.Published March 2017.Originallyapproved in 1974.Last previous edition approved in 2008 as D3345 08.DOI:10.1520/D3345-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume
14、 information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from the American Wood Protection Association(AWPA),PO Box361784,Birmingham,AL 35236-1784,http:/.Copyright ASTM International,10
15、0 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recomm
16、endations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.5.1 Specific identification of any termites used shall beobtained and reported with the test data.6.Determination of Sand Water-Holding Capacity6.1 Determine the quantity of distilled water to be added tothe sand during the test as follows:6.1.1 Place 100 g of oven-dry sand in a beaker anddetermine the volume of water required to saturate the sand.The saturation point is defined as the point when the a