1、Designation:D2590/D2590M98(Reapproved 2011)1Standard Test Method forSampling Chrysotile Asbestos1This standard is issued under the fixed designation D2590/D2590M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revisi
2、on.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in February 2012.1.Scope1.1 This test method covers procedures for taking a com-posite or a mast
3、er composite sample,at the mine or at thefactory or from a consignment,of a lot of milled asbestos fiberused as raw material in the chrysotile asbestos industry,conditioning this sample and reducing it in quantity through aseries of steps to provide a relatively small test specimen ofloose asbestos
4、fibers,representative of the lot and suitable forthe determination of a single property.1.2 This sampling method is suitable for taking test speci-mens of chrysotile asbestos for Test Methods:C1119,C1120,C1121,C1122,C1123,C1124,C1125,C1162,D1118,D2589,D2752,D2946,D2947,D2985,D2987,D3639,D3752 andD38
5、80.1.3 Test Method D3879 covers the sampling of amphiboleasbestos fibers.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Co
6、mbiningvalues from the two systems may result in non-conformancewith the standard.1.5 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 dete
7、rmine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C1119 Test Method for Vacuum Drainage of Asbestos-Cement MixesC1120 Test Method for Wash Test of AsbestosC1121 Test Method for Turner and Newall(T and N)Wet-Length Classification of AsbestosC112
8、2 Test Method for Wet Volume of AsbestosC1123 Test Method for Compressibility and Recovery ofAsbestosC1124 Test Method for Kerosene Retention of AsbestosC1125 Test Method for Penetration Index of AsbestosC1162 Test Method for Loose Density of AsbestosD1118 Test Method for Magnetic Rating of Asbestos
9、 Fiberand Asbestos TextilesD2589 Test Method for McNett Wet Classification of DualAsbestos FiberD2752 Test Methods forAir Permeability ofAsbestos FibersD2946 Terminology for Asbestos and AsbestosCementProductsD2947 Test Method for Screen Analysis of Asbestos FibersD2985 Test Method for Color of Asbe
10、stosD2987 Test Method for Moisture Content of Asbestos FiberD3639 Test Method for Classification of Asbestos by Que-bec Standard TestD3752 Test Method for Strength Imparted by Asbestos to aCementitious MatrixD3879 Test Method for Sampling Amphibole Asbestos(Withdrawn 2009)3D3880 Test Method for Asbe
11、stos Strength Units2.2 ASTM Adjuncts:Laboratory Filter Drawings43.Terminology3.1 Definitions:3.1.1 bagany quantity of asbestos fiber corresponding toone particular grade that is packed in a suitable container.NOTE1In the asbestos industry,the typical quantity contained in abag is 45 kg 100 lb approx
12、imately.3.1.2 composite samplea set of unit samples of asbestosfiber(drawn systematically or at random)taken from a lot,1This test method is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.03 on Asbestos-Cement Sheet
13、 Products and Accessories.Current edition approved Nov.1,2011.Published February 2012.Originallyapproved in 1967.Last previous edition approved in 2006 as D2590 98(2006)1.DOI:10.1520/D2590_D2590M-98R11E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Serv
14、ice at serviceastm.org.For Annual Book of ASTMStandards volume 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 ASTM International Headquarters.Order Adjunct No.ADJD2590.Cop
15、yright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 comprising not less than two and not more than 200 bags,foruse in the laboratory as a test sample;that is as a source of testspecimens.3.1.3 conditioningprocess by which the fiber is put intopr
16、oper condition to be tested.This can be done by hand(Method A)or mechanically(Method B).3.1.4 fines,nin asbestos,the class of material having thesmallest range of particle size that is segregated by particle sizeclassification of asbestos by any relevant test method.Custom-arily the fraction that passes through the finest aperture screenused in Test Method D2589 for McNett classification ofasbestos fiber.3.1.5 gradeasbestos fiber that has the same chemical,physical,and mechanical properties and
