Military Standard

Military standard 軍用標準﹐一般指美軍之軍用標準﹐也稱作 Defense Standard ﹐每一個軍用標準都有獨一之編號﹐如 MIL-STD-105E等。

軍用標準之建立﹐在於確保軍用設備之品質﹐但其他政府(美國)也有採用軍用標準的例子﹐因為美國軍方之採購金額龐大﹐使軍用標準之影響力擴及工業界﹐例如 MIL-STD-105D/E 就成為全球工業界廣泛採用的抽驗標準。

根據 2000年頒佈的 DOD 4120.24-M Defense Standardization Program (DSP) 之定義﹐軍用標準細分如下:

  • Defense Handbook – A guidance document containing standard procedural, technical, engineering, or design information about the materiel, processes, practices, and methods covered by the DSP.
  • Defense Specification – A document that describes the essential technical requirements for purchased materiel that is military unique or substantially modified commercial items.
  • Defense Standard – A document that establishes uniform engineering and technical requirements for military-unique or substantially modified commercial processes, procedures, practices, and methods. There are five types of defense standards: interface standards, design criteria standards, manufacturing process standards, standard practices, and test method standards.
  • Standard – A document that establishes uniform engineering or technical criteria, methods, processes and practices.
  • Specification – A document prepared to support acquisition that describes the essential technical requirement for purchased material and the criteria for determining whether those requirements are met.

參考資料:1. en.wikipedia.org http://en.wikipedia.org/wiki/Defense_Standard

Verification Level 驗證等級, Mil-Std-1916

MIL-STD-1916與過去的MIL-STD-105等系列的抽樣標準﹐最大的特點在於零不良驗收標準(Acceptance on Zero, AOZ)﹐因此沒有AQL的概念﹐它的抽樣表以驗證水準分等級。

MIL-STD-1916 將驗證水準(Verification Level, VL) 分成

VL I, VL II, VL III, VL IV, VL V, VL VI, VL VII等七個等級。

它又將品質特性分成下列三種等級﹐對應的VL如下:

  • 嚴重品質特性 (Critical Quality Characteristics); VL VII
  • 主要品質特性 (Major Quality Characteristics):VL III ~ VI
  • 次要品質特性 (Minor Quality Characteristics):VL I ~ III

其中的VL VII之品質驗證﹐必須是100%檢驗(通常是 100%的自動篩檢)或能證實產品fail-safe.

參考資料:

  1. MIL-STD-1916
  2. MIL-HDBK-1916 (MIL-STD-1916之說明手冊)

相關連結:

  1. MIL-STD-105E
  2. MIL-STD-1916下載點
  3. MIL-HDBK-1916下載點 (MIL-STD-1916之說明手冊)