1、Designation: C1124/C1124M 90 (Reapproved 2009)1Standard Test Method forKerosene Retention of Asbestos1This standard is issued under the fixed designation C1124/C1124M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEUnits information was corrected editorially in March 2010.1. Scope1.1 This test method covers the determination of the kero-sene
3、 retention capacity of asbestos fiber by filtering aftermixing and measuring the volume of liquid retained bydifference.1.2 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, each
4、system shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 WarningBreathing of asbestos dust is hazardous.Asbestos and asbestos products present demonstrated healthrisks for users and for those with whom they come into con
5、tact.In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For informa-tion on the safe use of chrysoltile asbestos, refer to “Safe Useof Chrysotile Asbestos: A Manual on Preventive and ControlMeasures.”21.4 This standard does not purport to ad
6、dress 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. For a specifichazard warning, see 1.3.2. Referenced Do
7、cuments2.1 ASTM Standards:3D1655 Specification for Aviation Turbine FuelsD2590 Test Method for Sampling Chrysotile AsbestosD2946 Terminology for Asbestos and AsbestosCementProductsD3879 Test Method for Sampling Amphibole Asbestos4E11 Specification for Woven Wire Test Sieve Cloth and TestSievesE177 P
8、ractice for Use of the Terms Precision and Bias inASTM Test Methods2.2 Other Standards:US Federal Specifications, VV-K-211 d, Kerosene5Canadian Government Specifications Board CAN 2-3.3-M85 Kerosene6United Kingdom, Ministry of Defense Specification DEF-2403-A73. Terminology3.1 DefinitionsRefer to Te
9、rminology D2946.4. Summary of Test Method4.1 A slurry of asbestos fiber is formed by mixing in aknown volume of kerosene. The slurry is then drained on astandard 177 m U.S. No. 80 screen as defined in Specifica-tion E11, and the kerosene that drains out in 15 min ismeasured. The quantity of kerosene
10、 retained is obtained bydifference.5. Significance and Use5.1 The kerosene retention value is an indication of thedegree of fiberization and of the absorptivity of a given gradeof asbestos.5.2 Since the retention of the fibrous fractions is muchgreater than that of the non-fibrous fractions, this te
11、st methodmay be used to compare the fibrous content of otherwisesimilar grades of asbestos.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 Products and Accessories.C
12、urrent edition approved Nov. 1, 2009. Published March 2010. Originallyapproved in 1989. Last previous edition approved in 2004 as C1124 90(2004)1.DOI: 10.1520/C1124_C1124M-90R09E01.2Available from The Asbestos Institute, http:/ referenced ASTM standards, visit the ASTM website, www.astm.org, orconta
13、ct ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.5Available from the Superintendent of Docum
14、ents, U.S. Government PrintingOffice, Washington, DC 20402.6Available from The Secretary, Canadian General Standard Board, Ottawa,ONT, Canada K1A 1G6.7Available from Her Majestys Stationery Office, London, England.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
15、PA 19428-2959, United States.6. Apparatus6.1 Kerosene Drainage ApparatusDescribed in Fig. 1 andFig. 2.7. Reagents and Materials7.1 Kerosene, meeting one of the following specifications:7.1.1 US Federal Specifications, VV-K-211 d, Kerosene.7.1.2 Jet A Kerosine specified in Specification D1655.7.1.3 U
16、nited Kingdom, Ministry of Defense SpecificationDEF-2403-A.7.1.4 Kerosine CGSB Spec CAN 2-3.3-M85.8. Hazards8.1 Warningsee 1.3.9. Sampling, Test Specimens, and Test Units9.1 Sampling:9.1.1 Take samples in accordance with Test Methods D2590in the case of chrysotile asbestos or Test Method D3879 in th
17、ecase of amphibole asbestos.9.2 Test Specimens:9.2.1 Two specimens each of 50 6 0.05 g are required.10. Procedure10.1 Put a 50 g specimen into a 400 cm3beaker and add 3256 1cm3of kerosene.10.2 Mix with a spatula for 120 s (2 min).10.3 Wet the drainage cylinder and screen with keroseneand drain 1 min
18、.10.4 Place a 250-cm3graduated cylinder beneath the drain-age cylinder outlet.10.5 Immediately transfer the slurry in one continuousmotion to the drainage cylinder.10.6 Start a stopwatch simultaneously.10.7 After draining for 900 s (15 min), read the volume ofkerosene drained into the graduate, and
19、record this value to thenearest cm3.10.8 Discard the asbestos retained on the screen, rinse cleanwith running hot water, and dry the apparatus.8Thus it will beready for the next test.10.9 Repeat this procedure with the second specimen.11. Calculation11.1 For each of the two readings, subtract the va
20、lueobtained, in cm3, from the initial quantity of kerosene (325 cm3). Multiply these differences by two to obtain the keroseneretention values per 100 g of asbestos fiber.11.2 ExampleIf the reading on the graduated cylinder was215 cm3, then the kerosene retentionvalue = (325215) 3 2 = 220 cm3/100 g.
21、8A jet of clean dry compressed air may be used to accelerate the drying.FIG. 1 Kerosene Retention Apparatus AssemblyFIG. 2 Retention Apparatus DetailC1124/C1124M 90 (2009)1212. Report12.1 Report the average of two kerosene retention values incm3/100 g.12.2 Fully identify the sample tested as to desi
22、gnation andorigin.13. Precision and Bias13.1 Acceptance of Results:13.1.1 Results on two specimens must agree within 2 % ofthe average. If this is not attained, repeat the test until tworesults within 2 % from the average are obtained.13.2 Precision:13.2.1 The single-laboratory, multi-operator-appar
23、atusdayprecision (repeatability) is 62 % (two sigma limits expressedin units of percentage) as defined in Practice E177 over therange of 200 to 400 cm3/100 g.13.3 Bias:13.3.1 No justifiable statement on the bias of this testmethod can be made since the true values cannot be establishedby an accepted
24、 referee method.13.3.2 A partial verification of the repeatability that con-firmed the above data is on file. A copy is available uponrequest.914. Keywords14.1 absorption; asbestos; kerosene; kerosene retention; oil;oil absorption; retention capacityASTM International takes no position respecting th
25、e validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard i
26、s subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International He
27、adquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This s
28、tandard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).9Supporting data is available from ASTM International Headquarters. RequestRR:C17-1002.C1124/C1124M 90 (2009)13
