More E The radiographs are of castings that were produced under conditions designed to produce the discontinuities. These reference radiographs are intended to be used for casting thickness ranges in accordance with Table 1. Two ungraded illustrations have been included to establish the radiographic appearance of foreign material. All of the references are original radiographs.
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A number in parentheses indicates the year of last reapproval. They are intended toprovide The first four frames eachcontain two sets of four graded levels of increasing severity, while the lastframe contains two ungraded radiographs. NOTE 2—Reference radiographs applicable to aluminum and magne-sium castings up to 2 in.
These changes could include changes in the films orprocessing chemicals used, changes in the dies or printing forthe cardboard mats, etc. Therefore, theadjunct reference radiographs remain valid for use with thisstandard regardless of the date of production or the revisionlevel of the text standard.
The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.
Referenced Documents2. Current edition approved Sept. Published September Originallyapproved in Last previous edition approved in as E - 01 Order RRE United States Appearance of Radiographic Indications4. These descriptions apply tothese reference radiographs only. They may indicate the inclusion of oxide or dross ormetallic compounds of different density.
Illustration shows amore dense material. Significance and Use5. The radiographs are of castings that were produced underconditions designed to produce the discontinuities.
Thesereference radiographs are intended to be used for castingthickness ranges in accordance with Table 1. Twoungraded illustrations have been included to establish theradiographic appearance of foreign material.
All of the references are originalradiographs. The extent to which theimage deteriorates over time is a function of storageconditions, care in handling and amount of use. Referenceradiograph films are no exception and may exhibit a loss inimage quality over time. The radiographs should therefore beperiodically examined for signs of wear and tear, includingscratches, abrasions, stains, and so forth. Any reference radio-graphs which show signs of excessive wear and tear whichcould influence the interpretation and use of the radiographsshould be replaced.
Basis for Application6. Appli-cation of these reference radiographs as acceptance standardsshould be based on the intended use of the product and thefollowing considerations see Note 3 The sizeof the unit area should be specified in the acceptance criteria.
Discontinuities more severe than those in the specified refer-ence radiograph shall be considered rejectable. Different grades or acceptance limits may be specified for eachdiscontinuity type. Further, different grades may be specifiedfor various regions or zones of the component.
Anymodification of the acceptance criteria required on the basis ofmultiple discontinuity types must be specified. NOTE 3—Caution should be exercised in specifying the acceptancecriteria to be met in the casting.
Casting design coupled with foundrypractice should be considered. It is advisable to consult with themanufacturer or foundry before establishing the acceptance criteria toensure the desired quality level can be achieved. 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 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 ASTM 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 address shown below.
ASTM E505 – アルミニウムおよびマグネシウムダイカストの検査のための標準参照ラジオグラフ
A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Scope 1. They are intended to provide: 1. NOTE 1—The set of reference radiographs consists of?