1.1 本规程规定了中规定的材料类型的代码类型、名称和尺寸 表1 . 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等价物；因此，每个系统应相互独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.3 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。 注1: 没有已知的ISO等效于本标准。 1.4 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 树脂识别码仅用于识别制成品中使用的塑料树脂。预期制成品包括但不限于包装。 4.1.1 图1 和 表1 提供适当的信息，说明将RIC纳入产品的方式以及可用的树脂标识名称。 图1 树脂识别标记示例 4.2 树脂识别码不是“回收码”不过，树脂识别码有助于回收利用。 在制造的塑料制品上使用树脂识别码并不意味着制品是回收的，也不意味着存在有效处理制品以进行回收或再利用的系统。术语“可回收”或其他环境索赔不得放在准则附近。 4.3 本规程基于塑料工业协会（SPI）于1988年开发的系统。一些州或国家可能已将原始SPI实践纳入法规或条例。 在这些情况下，该法令或法规优先于本标准。 4.4 本规程仅适用于新工具。已经包含旧版本SPI RIC的现有模具可以修改，但不需要修改。 4.5 为制成品指定编号，而不是为粘合剂或涂料指定编号。不要为标签的树脂编码标签。 4.6 部分 6. 介绍了向树脂识别码中添加新编号的过程。

1.1 This practice stipulates the types, names, and sizes of Codes for those material types specified in Table 1 . 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are likely not to be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems is likely to result in non-conformance with the standard. 1.3 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. Note 1: There is no known ISO equivalent to this standard. 1.4 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 Resin Identification Codes are used solely to identify the plastic resin used in a manufactured article. The intended manufactured articles include, but are not limited to, packaging. 4.1.1 Fig. 1 and Table 1 present the appropriate information on the way the RIC is to be incorporated onto the product and the available resin identification designations. FIG. 1 Example of a Resin Identification Marker 4.2 Resin Identification Codes are not “recycle codes.” The Resin Identification Code is, though, an aid to recycling. The use of a Resin Identification Code on a manufactured plastic article does not imply that the article is recycled or that there are systems in place to effectively process the article for reclamation or re-use. The term “recyclable” or other environmental claims shall not be placed in proximity to the Code. 4.3 This practice is based upon the system developed in 1988 by the Society of the Plastics Industry, Inc (SPI). It is possible that some states or countries will have incorporated the original SPI practice into statute or regulation. In those situations, that statute or regulation takes precedence over this standard. 4.4 This practice shall only apply to new tooling. Existing molds that already incorporate older versions of the SPI RIC may be modified, but modification is not required. 4.5 Assign number for manufactured items, not for adhesives or coatings. Do not code labels for resin of the label. 4.6 Section 6 addresses the process to add new numbers to the Resin Identification Code.