1.1 这些参考射线照片说明了可能通过射线照相检查发现的铝熔合焊缝中不连续的各种类型和严重程度。这些参考射线照片没有规定这些不连续的可接受水平，而是提供了传达可接受水平的视觉参考。 注1: 参考射线照片由一组八块板（8）组成 1. / 2. 11英寸。（22×28 cm）），覆盖0.75以下的基材 在里面(19 mm）厚度。 1.2 这些参考射线照片基于锻造铝产品中的两个标称焊缝厚度，适用于中所示的厚度范围 表1 . 焊缝使用6061和5083合金基板以及5356和4043气体金属电弧（GMA）电极制作。这些参考射线照片旨在用于评估锻铝产品焊缝的射线照片。不建议将其用于铸造材料的补焊；然而，它们适用于装配或制造焊缝。铝和镁铸件的参考射线照片可在参考射线照片中找到 E155 和 E505 . 1.3 附件包含代表性分级和非分级不连续性的插图。 表2 列出了每种基材厚度的不连续类型和严重程度。 每种分级不连续类型都有五个严重程度级别，从1到5，按严重程度递增的顺序。未分级的不连续性仅供参考。 1.4 有时，参考射线照片辅助材料的制造工艺可能会有微小变化。这些变化可能包括所用薄膜或加工化学品的变化、硬纸板垫模具或印刷的变化等。；然而，在所有情况下，这些变化均由插图监测小组委员会审查，并根据固定原型图像审查所有参考射线照片，以确保参考射线照片所代表的验收水平没有变化。 因此，无论文本标准的生产日期或修订水平如何，附加参考射线照片均适用于本标准。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 根据本标准使用参考射线照片的人员应符合国家或国际公认的无损检测人员资格认证惯例或标准（如ANSI/ASNT）进行射线照相解释的资格和授权- CP-189、SNT-TC-1A、NAS 410、ISO 9712或类似文件，并由业主或认证机构认证（如适用）。使用的惯例或标准及其适用版本应在使用方之间的合同协议中确定。应提供经认证的三级人员，以协助解释适用于参考射线照片的规范和产品要求（如果三级人员是射线照相口译员，则可能是同一个人）。 4.2 使用这些参考射线照片需要使用方就每种不连续类型的可接受水平达成一致。 图为0.125中的焊缝 在里面(3.2 mm）厚材料和0.50 在里面(12.7 mm）厚材料。这些图示旨在代表0.75英寸以下的基材厚度。（19毫米）。这些参考射线照片的使用并不限于所示的特定能量水平或绝对厚度限制。在没有其他适用文件的情况下，这些参考射线照片可用于买方和制造商之间已达成协议的其他能级或厚度，或两者。应根据合同规范使用标准参考射线照片。

1.1 These reference radiographs illustrate various types and severity levels of discontinuities in aluminum fusion welds that may be revealed by radiographic examination. These reference radiographs do not specify the acceptable level of these discontinuities, rather they provide a visual reference for communicating the acceptable level. Note 1: The reference radiographs consist of a set of eight plates (8 1 / 2 by 11 in. (22 by 28 cm)), covering base material up to and including 0.75 in. (19 mm) in thickness. 1.2 These reference radiographs are based on two nominal weld thicknesses in wrought aluminum products and are applicable to the thickness ranges shown in Table 1 . The welds were produced using base material plates of 6061 and 5083 alloys and 5356 and 4043 gas metal-arc (GMA) electrodes. These reference radiographs are intended for use in evaluating radiographs of welds in wrought aluminum products. They are not recommended for use with repair welds in cast materials; however, they are appropriate for use with assembly or fabrication welds. Reference radiographs for aluminum and magnesium castings are available in Reference Radiographs E155 and E505 . 1.3 The adjunct contains illustrations of representative graded and ungraded discontinuities. Table 2 lists the discontinuity types and severities illustrated for each thickness of base material. Each of the graded discontinuity types has five severity levels, 1 through 5, in order of increasing severity. The ungraded discontinuities are included for informational purposes. 1.4 From time to time, there may be minor changes to the process for manufacturing of the reference radiograph adjunct materials. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc.; however, in all cases, these changes are reviewed by the Illustration Monitoring Subcommittee and all reference radiographs are reviewed against a fixed prototype image to ensure that there are no changes to the acceptance level represented by the reference radiographs. Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Personnel utilizing reference radiographs to this standard shall be qualified and authorized to perform radiographic interpretation in accordance with a nationally or internationally recognized NDT personnel qualification practice or standard such as ANSI/ASNT-CP-189, SNT-TC-1A, NAS 410, ISO 9712, or a similar document and certified by the employer or certifying agency, as applicable. The practice or standard used and its applicable revision shall be identified in the contractual agreement between the using parties. A certified Level III shall be available to assist with interpreting specifications and product requirements as applied to the reference radiographs (if the Level III is the radiographic interpreter, this may be the same person). 4.2 Use of these reference radiographs requires agreement between the using parties as to the acceptable level of each discontinuity type. Illustrations are provided for welds in 0.125 in. (3.2 mm) thick material and 0.50 in. (12.7 mm) thick material. These illustrations are intended to be representative of base material thicknesses up to 0.75 in. (19 mm). Use of these reference radiographs is not intended to be restricted to the specific energy level or the absolute thickness limits that are illustrated. These reference radiographs may be used, where there is no other applicable document, for other energy levels or thicknesses, or both, for which agreement has been reached between the purchaser and the manufacturer. Standard reference radiographs should be used in accordance with contractual specifications.