自2007年7月19日起，SAE航空航天材料部已宣布取消本规范，并已被SAE AMS 2460取代。当参考已取消的SAE AMS-QQ-C-320时，应满足最新版SAE AMS 2460的要求，但以下情况除外:对于指定了QQ-C-320或AMS-QQ-C-320的零件，允许使用设备、规程、，以及符合SAE AMS-QQ-C-320（无变更，2000年7月发布）的试验方法，且在取消前买方可接受。 通过这一行动，本文件仍将列在航空航天材料规范索引的数字部分，并指出其已被SAE AMS 2460取代。本规范涵盖了电镀铬的要求。

This specification has been declared CANCELLED by the Aerospace Materials Division, SAE, as of 07/19/2007 and has been superseded by SAE AMS 2460. The requirements of the latest issue of SAE AMS 2460 shall be fulfilled whenever reference is made to the cancelled SAE AMS-QQ-C-320 with the following exception: For parts where QQ-C-320 or AMS-QQ-C-320 is specified, it is permissible to use equipment, practices, and test methods conforming to SAE AMS-QQ-C-320 (no change, issued July 2000) and that were acceptable to the purchaser prior to cancellation. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by SAE AMS 2460.This specification covers the requirements for electrodeposited chromium plating.