1、Designation: E802 95 (Reapproved 2010)E802 15Standard Reference Radiographs forGray Iron Castings Up to 412 in. (114 mm) in Thickness 1This standard is issued under the fixed designation E802; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 These reference radiographs for gray iron castings consist of one set of illustrations of center
3、line shrinkage with severitylevels 1 to 5 using three radiation source types as follows:1.1.1 Volume I: Medium Voltage (nominal 250 kVp) X-RayX-ray Reference RadiographsRadiographsSet of 5 severitylevels in a 15 by 17 in. folder.1.1.2 Volume II: Iridium-192 Reference RadiographsSet of 5 severity lev
4、els in a 15 by 17 in. folder.1.1.3 Volume III: Cobalt-60 Reference RadiographsSet of 5 severity levels in a 15 by 17 in. folder.NOTE 1The reference radiograph films are an adjunct to this document and must be purchased separately from ASTM International if needed.1.2 From time to time, there may be
5、minor changes to the process for manufacturing of the reference radiograph adjunctmaterials. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for thecardboard mats, etc.; however, in all cases, these changes are reviewed by the Illustrati
6、on Monitoring Subcommittee and allreference radiographs are reviewed against a fixed prototype image to ensure that there are no changes to the acceptance levelrepresented by the reference radiographs. Therefore, the adjunct reference radiographs remain valid for use with this standardregardless of
7、the date of production or the revision level of the text standard.1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This stan
8、dard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 AST
9、M Standards:2E94 Guide for Radiographic ExaminationE186 Reference Radiographs for Heavy-Walled (2 to 412 in. (50.8 to 114 mm) Steel CastingsE446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in ThicknessE1316 Terminology for Nondestructive Examinations2.2 ASTM Adjuncts:Reference Rad
10、iographs for Gray Iron Castings Up to 412 in. (114 mm) in Thickness:Volume I, Medium Voltage (Nominal 250 kVp) X-rays3Volume II, Iridium-1924Volume III, Cobalt-6053. Terminology3.1 DefinitionsFor definitions of terms used in this document, see Terminology E1316, Section D.1 These reference radiograp
11、hs are under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and are the direct responsibility of Subcommittee E07.02on Reference Radiological Images.Current edition approved June 1, 2010Sept. 1, 2015. Published November 2010September 2015. Originally approved in 1982. Last previous
12、 edition approved in 20052010as E802 - 95 (2005).(2010). DOI: 10.1520/E0802-95R10.10.1520/E0802-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Docu
13、ment Summary page on the ASTM website.3 Available from ASTM International Headquarters. Order Reference Radiograph No. RRE080201.4 Available from ASTM International Headquarters. Order Reference Radiograph No. RRE080202.5 Available from ASTM International Headquarters. Order Reference Radiograph No.
14、 RRE080203.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consul
15、t prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Significance and Use4.1 These refe
16、rence radiographs, along with the referenced applicable steel casting standards (Reference Radiographs E186 andE446), are supplied as a means of establishing categories and severity levels of common internal discontinuity types in gray ironcastings subjected to radiographic examination. They may be
17、used in accordance with contractual specifications as agreed uponbetween purchaser and supplier.4.2 The use of this standard is not intended to be restricted to the specific energy level or to the absolute thickness limits thatare contained in this standard title. The title is intended to be descrip
18、tive and not restrictive. This document may be used, wherethere is no other applicable document, for other energy levels or thicknesses, or both, for which it is found to be applicable andfor which agreement has been reached between purchaser and supplier.5. Method of Preparation5.1 The original rad
19、iographs used to prepare the accompanying reference radiographs were produced on high contrast,fine-grain film by the respective use of radiation energies stated in 1.1.1 1.1.3. The radiographs were made with a penetrametersensitivity as determined by ASTM penetrameters (see Guide E94) of 2-2T. The
20、reproductions have been prepared to an H discontinuities; gamma ray; gray iron; reference radiographs; X-rayASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised t
21、hat 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 responsible technical committee and must be reviewed every five years andif not revised, either reapp
22、roved 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 consideration at a meeting of theresponsible technical committee, which you may attend. If you f
23、eel 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, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual re
24、prints (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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 153
