1、Designation: C 223 98 (Reapproved 2008)Standard Specification forAsbestos-Cement Siding1This standard is issued under the fixed designation C 223; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers asbestos-cement siding, in-cluding
3、accessories, designed to provide the weather-exposedsidewall surfaces of buildings. 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, genera
4、lly longer andnarrower in shape than siding shingles, and usually with theexposed edge straight.1.1.3 SheetsUniform thickness, rectangular in shape,larger in unit sizes than shingles or clapboards.NOTE 1For additional information, see Specification C 725 for Semi-dense Mineral Fiber Siding.1.2 The v
5、alues 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 users and for those with whom they come into contact.In addition
6、to other precautions, when working with asbestos-cement products, minimize the dust 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:3C 220 Specification for
7、 Flat Asbestos-Cement SheetsC 458 Test Method for Organic Fiber Content of Asbestos-Cement ProductsC 459 Test Methods for Asbestos-Cement Flat ProductsC 725 Specification for Semidense Mineral Fiber SidingC 1096 Test Method for Determination of Wood Fiber inAsbestos Cement2.2 Federal Standard:4Fed.
8、Std. No. 123 Marking for Domestic Shipment (CivilianAgencies)2.3 Military Standard:4MIL-STD-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 de
9、terminingthe conformity of the asbestos-cement siding with this speci-fication shall be made in accordance with Test Methods C 459.3.2 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 DeflectionT
10、he average deflection at mid-span atmaximum load obtained by loading equally and simulta-neously at both one-third points of the test span as shown inTable 1.3.4 Water AbsorptionThe average water absorption shallnot exceed 30 % mass.4. Dimensions, Mass, and Permissible Variations4.1 Asbestos-cement
11、siding supplied under this specifica-tion shall conform to the dimensions prescribed in Table 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 confo
12、rm to all other requirements of thisspecification. Siding units of one half normal length 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 j
13、urisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.03 on Asbestos - Cement Sheet Products and Accessories.Current edition approved May 1, 2008. Published July 2008. Originally approvedin 1949. Last previous edition approved in 200
14、3 as C 223 98(2003)1.2Available 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 websit
15、e.4Available from Standardization Documents, Order Desk, Bldg. 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.,
16、N.W., Washington, DC20036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.3 ThicknessThe average thickness of all units suppliedunder this specification shall be as shown in Table 1, and theaverage thickness of any one unit shall n
17、ot be less than theaverage of all units within the shipment by 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 leng
18、th shall be 3.2 mm (618 in.), asmeasured after 48 h at 23C (73F) 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 be
19、smooth, grained, granuled, coated, or otherwise textured.5.3 ColorThe 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 N
20、ails and FastenersUnless otherwise speci-fied for special application 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 def
21、ect and should notresult in a permanent change in color.6. Nails 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 nonstainin
22、g, corrosion-resistant mate-rial. Face nails shall be furnished 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 nonstai
23、ning corrosion-resistant type.6.3 Baker strips in sufficient quantity and proper size forflashing the vertical joining between siding units shall befurnished by the manufacturer with the siding. These stripsshould be made of an asphalt-(not coal tar-)saturated andcoated material. Joint flashing mate
24、rials are not furnished withsheets used for siding and must be purchased separately.7. Underlayment Sheet7.1 Underlayment sheet material for use in the applicationof asbestos-cement siding is not furnished, but must bepurchased separately.7.2 Asphalt-saturated felt is suitable for underlayment use.C
25、oal tar-saturated felt is not suitable. The felt shall weigh notless than 63.5 kg/100 m2(13 lb/100 ft2). Underlayment sheetmaterial for use with asbestos-cement siding shall be water-resistant and of the “breather” type, permeable to water vapor.8. Composition Requirements8.1 Asbestos-cement siding
26、shall be composed of a combi-nation of asbestos fiber and portland cement or portlandblast-furnace slag cement, and not more than 1 weight % oforganic fiber, (as determined by Test Methods C 458 orC 1096), with or without the addition of curing agents, water-repellent substances, mineral fillers, co
27、atings, pigments, ormineral granules, formed under pressure and cured to meet thephysical requirements of this specification.9. Rejection and Retesting9.1 If the sample fails to conform to any one of therequirements of this specification, a second sample from thesame lot shall be prepared and tested
28、. The results of the retestshall be averaged with the results of the original test todetermine compliance with this specification.9.2 Failure to conform to any one of the requirements of thisspecification, upon retest as prescribed above, shall constitutegrounds for rejection. In case of rejection,
29、the seller shall havethe right to reinspect the rejected shipment and resubmit the lotafter removal of the portion of the shipment not conforming tothe specified requirements, provided this is done within 20days after receipt of notice of the specific cause for rejection.10. Inspection10.1 Inspectio
30、n of material shall be made at the point ofshipment. The inspector representing the purchaser shall havefree access to the carriers being loaded for shipment to thepurchaser. He shall be afforded all reasonable and availablefacilities at the point of shipment for sampling and inspectionof the materi
31、al, which shall be so conducted as not to interfereunnecessarily with the loading of the carriers.11. Packaging and Shipping11.1 Commercial QuantitiesThe commercial unit is ap-proximately one square for marketing asbestos-cement siding.One square is sufficient material to cover 9.29 m2(100 ft2)ofwal
32、l area when applied according to the manufacturers direc-tions.TABLE 1 Typical Dimensions of Asbestos-Cement Sidingmm (in.)Type Width Minimum Top LapASiding shingles 200 to 405(8 to 16)610 to 1220(24to48)25 (1)Clapboards 200 to 405(8 to 16)1220 to 2440(48to96)25 (1)SheetsB405 to 1220(16to48)1220 to
33、3660(48 to 144)25 (1) unlessflashedATop lap is defined as the shortest distance between the lower edge of a courseof siding and the most proximate area of side wall not covered by the precedingcourse.BFlat sheets are also covered by Specification C 220.TABLE 2 Physical RequirementsThickness Minimum
34、Breaking LoadMinimumDeflectionNominal MinimumStrongerDirectionWeakerDirectionmm (in.) mm (in.) N (lbf) N (lbf) mm (in.)4.5316 4.1 0.16 210 47 170 38 7 0.25614 5.7 0.22 370 83 310 70 5 0.21038 8.8 0.34 690 155 570 128 2.5 0.1C 223 98 (2008)211.2 Commercial PackagingUnless otherwise specified,asbestos
35、-cement siding shall be packaged in accordance withaccepted commercial practice, to ensure acceptance by com-mon carrier.11.3 Job ProtectionPackages of asbestos-cement sidingshall be stacked upon a raised, rigid, flat supporting base, andto avoid discoloration shall be kept completely covered,protec
36、ted from the weather, clean and dry, until applied.12. Keywords12.1 asbestos; asbestos-cement; asbestos-cement siding;clapboard; sheeting; sheets; shingles; siding; siding shinglesSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply when material is supplied under thisspeci
37、fication for U.S. Government procurement.S1. PackagingS1.1 Unless otherwise specified in the contract, the materialshall be packaged in accordance with the producers standardpractice which will be acceptable to the carrier at lowest rates.Containers and packing shall comply with Uniform FreightClass
38、ification Rules or National Motor Freight ClassificationRules. Marking for shipment of such material shall be inaccordance with Fed. Std. No. 123 for civil agencies andMIL-STD-129 for military agencies.S2. Responsibility for InspectionS2.1 Unless otherwise specified in the contract or purchaseorder,
39、 the producer is responsible for the testing of all materialto assure compliance with the test requirements specifiedherein. Except as otherwise specified in the contract or order,the producer may use his own or any other suitable facilities forthe performance of the inspection and test requirements
40、 speci-fied herein, unless disapproved by the purchaser. The purchasershall have the right to perform any of the inspections and testsset forth in this specification where such inspections aredeemed necessary to assure that material conforms to pre-scribed requirements.ASTM International takes no po
41、sition respecting the 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 responsibi
42、lity.This standard is 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 A
43、STM International Headquarters. 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 addres
44、s shown below.This standard 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).C 223 98 (2008)3
