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
23、uantity 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 materials are not furnished withsheets used for siding and must be
24、 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.Coal tar-saturated felt is not suitable. The felt shall weigh n
25、otless 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 shall be composed of a combi-nation of asbestos fiber and port
26、land cement or portlandblast-furnace slag cement, and not more than 1 weight % oforganic fiber, (as determined by Test Methods C458 or C1096),with or without the addition of curing agents, water-repellentsubstances, mineral fillers, coatings, pigments, or mineralgranules, formed under pressure and c
27、ured to meet the physicalrequirements 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. The results of the retestshall be averaged with the results of
28、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, the seller shall havethe right to reinspect the rejected shipment
29、 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 Inspection of material shall be made at the point ofshipment. The inspecto
30、r 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 material, which shall be so conducted as not to interfereunnecessarily
31、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.TABLE 1 Typical Dimensions of Asbestos-Cement Sidingmm (in.)Type Width Minimum Top LapASiding shingles 200 to 405(8 to 16)610 to
32、1220(24to48)25 (1)Clapboards 200 to 405(8 to 16)1220 to 2440(48to96)25 (1)SheetsB405 to 1220(16to48)1220 to 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 precedin
33、gcourse.BFlat sheets are also covered by Specification C220.TABLE 2 Physical RequirementsThickness Minimum 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
34、.8 0.34 690 155 570 128 2.5 0.1C223 98 (2014)2One square is sufficient material to cover 9.29 m2(100 ft2)ofwall area when applied according to the manufacturers direc-tions.11.2 Commercial PackagingUnless otherwise specified,asbestos-cement siding shall be packaged in accordance withaccepted commerc
35、ial 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,protected from the weather, clean and dry, until applied.12. Keywords12.1
36、 asbestos; asbestos-cement; asbestos-cement siding;clapboard; sheeting; sheets; shingles; siding; siding shinglesSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply when material is supplied under thisspecification for U.S. Government procurement.S1. PackagingS1.1 Unless o
37、therwise 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 FreightClassification Rules or National Motor Freight ClassificationRules. Mark
38、ing 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, the producer is responsible for the testing of all materialto assu
39、re 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 speci-fied herein, unless disapproved by the purchaser. The purcha
40、sershall 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 position respecting the validity of any patent rights asserted in con
41、nection 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 is subject to revision at any time by the respon
42、sible 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 Headquarters. Your comments will receive careful
43、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 standard is copyrighted by ASTM International, 1
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