ASTM C223-1998(2014) Standard Specification for Asbestos-Cement Siding《石棉水泥壁板的标准规格》.pdf
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1、Designation: C223 98 (Reapproved 2014)Standard Specification forAsbestos-Cement Siding1This standard is issued under the fixed designation C223; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、 parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers asbestos-cement siding, in-cluding accessories, designed to provide the weather-exposedsidewall surfaces of buildings.
3、 Siding in the following forms iscovered:1.1.1 Siding ShinglesUniform thickness, generally rectan-gular in shape and having wavy, random, thatched, straight, orirregular butts.1.1.2 ClapboardsUniform thickness, generally longer andnarrower in shape than siding shingles, and usually with theexposed e
4、dge straight.1.1.3 SheetsUniform thickness, rectangular in shape,larger in unit sizes than shingles or clapboards.NOTE 1For additional information, see Specification C725 for Semi-dense Mineral Fiber Siding.1.2 The values stated in SI units are to be regarded as thestandard. The values given in pare
5、ntheses are for informationonly.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 contact.In addition to other precautions, when working with asbestos-cement products, minimize the dust
6、that results. For informa-tion on the safe use of chrysotile asbestos, refer to “Safe Use ofChrysotile: A Manual on Preventive and Control Measures.”22. Referenced Documents2.1 ASTM Standards:3C220 Specification for Flat Asbestos-Cement SheetsC458 Test Method for Organic Fiber Content of Asbestos-Ce
7、ment ProductsC459 Test Methods for Asbestos-Cement Flat ProductsC725 Specification for Semidense Mineral Fiber SidingC1096 Test Method for Determination of Wood Fiber inAsbestos Cement2.2 Federal Standard:4Fed. Std. No. 123 Marking for Domestic Shipment (CivilianAgencies)2.3 Military Standard:4MIL-S
8、TD-129 Marking for Shipment and Storage2.4 Other Documents:Uniform Freight Classification Rules5National Motor Freight Classification Rules63. Physical Requirements3.1 All measurements and tests necessary for determiningthe conformity of the asbestos-cement siding with this speci-fication shall be m
9、ade in accordance with Test Methods C459.3.2 Flexural StrengthThe average breaking load obtainedby loading equally and simultaneously at both one-third pointsof the test span as shown in Table 1.3.3 DeflectionThe average deflection at mid-span at maxi-mum load obtained by loading equally and simulta
10、neously atboth one-third points of the test span as shown in Table 1.3.4 Water AbsorptionThe average water absorption shallnot exceed 30 % mass.4. Dimensions, Mass, and Permissible Variations4.1 Asbestos-cement siding supplied under this specifica-tion shall conform to the dimensions prescribed in T
11、able 2.4.2 The unit dimensions and laps given in Table 2 are anindication of customary current manufacture and shall not beconstrued to limit or fix the width, length, or lap dimensions ofsiding units that conform to all other requirements of thisspecification. Siding units of one half normal length
12、 may besupplied in an amount not exceeding two per bundle. Fifteenpercent of the clapboard units may be supplied shorter than thestandard length in multiples of 406 mm (16 in.).1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct re
13、sponsibility of SubcommitteeC17.03 on Asbestos - Cement Sheet Products and Accessories.Current edition approved Dec. 1, 2014. Published December 2014. Originallyapproved in 1949. Last previous edition approved in 2008 as C223 98(2008). DOI:10.1520/C0223-98R14.2Available from The Asbestos Institute,
14、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.4Available from Standardization Documents, Order Desk, Bldg
15、. 4, Section D,700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.5Available from The Uniform Classification Commission, Room 1106, 222 S.Riverside Plaza, Chicago, IL 60606.6Available from National Motor Freight Inc., 1616 P. St., N.W., Washington, DC20036.Copyright ASTM International, 100 B
16、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.3 ThicknessThe average thickness of all units suppliedunder this specification shall be as shown in Table 1, and theaverage thickness of any one unit shall not be less than theaverage of all units within the shipment by
17、 more than 10 %.For textured siding, the thickness shall be construed as thegross over-all measurement from the top of the textured surfaceto the back of the unit.4.4 Width and LengthThe permissible variation from thenominal width or length shall be 3.2 mm (618 in.), asmeasured after 48 h at 23C (73
18、F) and 50 % relative humidity.5. Workmanship, Finish, and Appearance5.1 WorkmanshipThe surface of the siding to be exposedshall be free of defects that impair appearance or serviceability.5.2 FinishThe exposed surface of the siding may besmooth, grained, granuled, coated, or otherwise textured.5.3 C
19、olorThe exposed surface of the siding may benatural color of the asbestos-cement product or may be coloredby the addition of mineral pigments, chemical impregnation,pigmented coatings, veneers, or embedded mineral granules.5.4 Holes for Nails and FastenersUnless otherwise speci-fied for special appl
20、ication methods, holes for nails andfasteners shall be provided and shall be so placed as to satisfythe top lap requirements given in Table 2.5.5 EfflorescenceEfflorescence that sometimes may ap-pear on asbestos-cement siding is not a defect and should notresult in a permanent change in color.6. Nai
21、ls and Fasteners6.1 Face nails shall have small, flat heads with shanks sizedto enter the face nail holes provided in the units. They shall belong enough to hold the siding units securely to a wood lumbernailing base, and be of nonstaining, corrosion-resistant mate-rial. Face nails shall be furnishe
22、d with the siding by themanufacturer.6.2 Special fasteners for attaching siding units to other thana wood lumber nailing base must be purchased separately andare not furnished with the siding. Fasteners of this type shall beof the nonstaining corrosion-resistant type.6.3 Baker strips in sufficient q
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