ASTM C1122-1990(2004)e1 Standard Test Method for Wet Volume of Asbestos《石棉的湿体积的试验方法》.pdf
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1、Designation: C 1122 90 (Reapproved 2004)e1Standard Test Method forWet Volume of Asbestos1This standard is issued under the fixed designation C 1122; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEAsbestos warning was moved from 7.1 to 1.3 in September 2004.1. Scope1.1 This test method covers the appraisal of asbestos fibergroups 4 to 72in
3、terms of their occupied volumes whenimmersed in water.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 WarningBreathing of asbestos dust is hazardous.Asbestos and asbestos products present demonstrated healthrisks for us
4、ers and for those with whom they come into contact.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 ControlMeasu
5、res.”31.4 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 practices and determine the applica-bility of regulatory limitations prior to use. For a sp
6、ecifichazard warning, see 1.3.2. Referenced Documents2.1 ASTM Standards:4D 1193 Specification for Reagent WaterD 2590 Test Method for Sampling Chrysotile AsbestosD 2946 Terminology Relating to AsbestosD 3639 Test Method for Classification of Asbestos Fibersby Quebec Standard TestD 3879 Test Method f
7、or Sampling Amphibole AsbestosE 177 Practice for Use of the Terms Precision and Bias inASTM Test Methods2.2 Other Standard:Quebec Standard Designation of Chrysotile AsbestosGrades53. Terminology3.1 DefinitionsRefer to Terminology D 2946.4. Summary of Test Method4.1 A test specimen is dispersed in wa
8、ter by means of amechanically driven inverter. The resulting suspension is thenallowed to stand for a fixed period, and the volume occupied bythe fiber, as defined by the solid-liquid interface, is recorded.5. Significance and Use5.1 Wet volume gives an indication of the degree ofloftiness and openn
9、ess of asbestos fiber.6. Apparatus6.1 Graduated Glass Cylinder6Meeting the followingspecification, as shown in Fig. 1:6.1.1Capacity 2 dm3(2000 cm3)Subdivisions 0.02 dm3(20 cm3)Inside diameter 80 cmWall thickness 3 mmTotal height 482 6 3mmHeight from inner bottom of base tothe 2000 cm3mark398 6 6mm6.
10、1.2 The cylinder must have a full-width mouth reinforcedwith an exterior beaded rim, without any spout.6.1.3 The bottom of the graduated cylinder must be flat andmust form a clean right angle with the wall of the graduate.6.2 Mechanically Driven Inverter, for rotating the graduatedcylinder about a h
11、orizontal axis at the center of the graduatedcylinder at 30 rpm for 30 complete rotations. The inverter mayclamp the cylinder in such a way as to seal the mouth, or1This test method is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of
12、 SubcommitteeC17.03 on AsbestosCement Sheet Products and Accessories.Current edition approved June 1, 2004. Published July 2004. Originally approvedin 1989. Last previous edition approved in 1999 as C 1122 90 (1999).2Quebec Standard designation of chrysotile asbestos grades as determined byTest Meth
13、od D 3639.3Available from The Asbestos Institute, http:/ 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 Document Summary page onthe ASTM website.5Availabl
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