1、ASTM D2750 95 0759530 0579223 04T=Designation:D 2750-95 a b AMERICAN SOCIETY FOR TESTING AND MATERIALS 1DD Barr Harbor Dr.West Conshohocken,PA 19428 Reprinted from ihe AnnuA Book of ASTM Standards.Copyright ASTM If not listed in the current combined index.will appear in the next edition.Standard Spe
2、cification for Acrylonitrile-Butadiene-Styrene(ABS)Plastics Utilities Conduit and Fittings This standard is issued under the fixed designation D 2750;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last revision.A number
3、 in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope 1.1 This specification covers the requirements for acrylonitrile-butadiene-styrene(ABS)plastic conduit pro-duced by single extrusion or simultaneo
4、us multiple coextrusion and fittings used for communication and elec-trical wires and cables installed underground for public utilities.Installation procedures are given in the appendix.stated in inch-pound units are to be regarded as the standard.The values given in parentheses are provided for inf
5、ormation purposes only.1.3 The following precautionary caveat pertains only to the test method portion,Section 9,of this specification:This problems,$any,associated with its use.It is the responsi-bility o f the user o f this standard to establish appropriate safety and health practices and determin
6、e the applicability o f regulatory limitations prior to use.Fed.Std.No.123 Marking for Shipment(Civil agencie)2.3 Military Standard:MIL-STD-129 Marking for Shipment and Storages 3.Terminology 3,Definitions are in accordance with Terminology 12 and abbreviations are in accordance with Terminology D 1
7、600,unless otherwise specified.The abbreviation for acrylonitrile-butadiene-styrene is ABS.3.1.1 acrylonitrile-butadiene-styrene(ABS)pipe and fit-tings plastics-plastics containing polymers or blends of polymers,or both,in which the minimum butadiene content minimum styrene or substituted styrene co
8、ntent,or both,is 15%,and the maximum content of other is%and lubricants,stabilizers,and The standard does not purport lo d&es.Y all o f the-%&Y is 6%,the minimum acrylonitrile content is 15%,the 2.Referenced Documents 2.1 ASTM Standards:D 6 18 Practice for Conditioning Plastics and Electrical Insula
9、ting Materials for Testing?D 1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure3 D 1600 Terminology for Abbreviated Terms Relating to plastic,D 1788 Specification for Rigid Acrylonitnle-Butadiene-Styrene(ABS)D 2 122 Test Method for Determining Dimensions of Thermop
10、lastic Pipe and Fittings3 D 2235 Specification for Solvent Cement for Acrylonitrile-Butadiene-Styrene(ABS)Plastic Pipe and Fittings3 D2412 Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading3 D2444 Test Method for Impact Resistance of Thermo-pl
11、astic Pipe and Fittings by Means of a Tup(Falling Weight)3 F 4 12 Terminology Relating to Plastic Piping Systems3 2.2 Federal Standard:4.Classification for use by public utilities,designated as follows:designed to be encased in concrete.designed for installation without encasement in concrete.coextr
12、usion shall be identified“CoeX.”4.1 This specification covers two types of plastic conduit 4.1.1 Type I(also known as Type EB(Encased Burial),4.1.2 Type II(also known as Type DB(Direct Burial),4.2 Plastic conduit produced by simultaneous multiple NOTE I-Type I(EB)and Type II(DB)can be produced by si
13、ngle extrusion or simultaneous multiple coextrusion.5.Requirements 5.1 Materials-The conduit and fittings shall be manu-factured from a virgin ABS compound,having a minimum cell classification 2-2-2,and may contain lubricants,dyes,pigments,and stabilizers(maximum 3),and as defined in Specification D
14、 1788 from a single raw matenal supplier.Clean reground material from the manufacturers own pipe products may be used by the same manufacturer provided the end product meets the requirements of this specification.NOTE 2-Fittings described in this specification are intended for use 5.2 Workmanship-Th
15、e conduit shall be homogeneous throughout and free from visible cracks,holes,foreign with either pipe classification.This specification is under the jurisdiction of ASTM Committee F-17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.66 on Conduit.Current edition approv
16、ed Sept.IO,1995.Published November 1995.Oflginally 2 Annual Book o f ASTM Standards,Vol 08.01.3 Annual Book oJASTM Standards,Vol 08.04.Annual Book o f ASTM Siandardr,Vol 08.02.published as D 2750-68.Last previous edition D 2750-93.Available from Standardization Documents Order Desk,Bldg.4 Section D,700 Robbins Ave.,Philadelphia,PA 191 11-5094,Attn:NPODS.1 NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the