ISO INTERNATIONAL STANDARD 6305-2 Second edition 2007-02-15 Railway components Technical delivery requirements - Part 2: Non-alloy carbon steel baseplates Elements constitutifs de la voie ferrée- Spécifications techniques de livraison- Partie 2: Selles en acier au carbone non allie Reference number ISO 6305-2:2007(E) @ ISO 2007 ISO 6305-2:2007(E) Contents Page Foreword 1 Scope 2 Normative references 3 General requirements.... 3.1 Steelmaking process .. 3.2 Manufactureofbaseplates 3.3 Freedom from defects..... 3.4 Drawings and working gauges.... 3.5 Finishing ... 3.6 Flatness 4 Technicalreguirements 4.1 Tensile properties. 4.2 Properties of bend test. 4.3 Dimensional tolerances . 5 Acceptance testing 5.1 General..... 5.2 Number of tests. 5.3 Dimensions and finish. 5.4 Sampling for mechanical test 5.5 Dimensionalchecks 6 Test methods... 6.1 Tensiletest 6.2 Bend test... 6.3 6.4 Interpretationofdimensionalinspection 6.5 Alternativetodimensionalinspectionbyselectionfrombatches Quality control cards .. 7 Marking .... 8 Information to be supplied by the purchaser Annex A (normative) Checking of dimensions and tolerances. ..8 Annex B (normative) Progressive sampling plan Wald method.. .10 Annex C (normative) Progressive sampling plan for inspection of resubmitted batches ... .12 @IsO 2007 -All rights reserved ii ISO 6305-2:2007(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeer established has the right to be represented on that committee. International organizations, governmental and International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 6305-2 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 15, Railway rails and theirfasteners. This second edition cancels and replaces the first edition (IsO 6305-2:1983), which has been editorially revised. IsO 6305 consists of the following parts, under the general title Railway components -Technical delivery requirements: Part 1: Rolled steel fishplates Part 2: Non-alloy carbon steel baseplates Part 3: Steel sleepers Part 4: Untreated steel nuts and bolts and high-strength nuts and bolts for fishplates and fastenings Part 1 of IS0 6305 was withdrawn by systematic review in 2002. @ISO2007-All rightsreserved INTERNATIONAL STANDARD ISO 6305-2:2007(E) Railway components Technical delivery requirements Part 2: Non-alloy carbon steel baseplates 1Scope This part of isO 6305 specifies the quality requirements of the product and the conditions of acceptance testingforrollednon-alloycarbonsteelbaseplatesforusewithflat-bottomrailwayrails. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated document (including any amendments) applies. testing Iso 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection Iso 2859-2, Sampling procedures for inspection by attributes - Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection IsO 2859-4, Sampling procedures for inspection by attributes - - Part 4: Procedures for assessment of declared quality levels Iso 6892, Metallic materials - Tensile testing at ambient temperature ISO 7438, Metallic materialsBend test 3 General requirements 3.1 Steelmaking process The steelmaking process shall be the responsibility of the manufacturer of the baseplates. If requested by