Section 3 – 檢驗抽樣要求 Requirement for Sample Inspection
3.1抽樣檢驗標準和要求 Sample Inspection standard & requirement:
3.1.1按照 ANSI/ASQ Z1.4-2003 General Level II 進行隨機抽樣,AQL 水平參考 BBY 產品規(guī)格中的定義; Random sample By ANSI/ASQ Z1.4-2003 General Level II; AQL level is based on definition of BBY product specification (PS)
3.1.2產品檢驗中若連續(xù) 5 批或不足 5 批中有 3 批不合格，則從 LEVEL II 轉到加嚴抽檢（S-III），若連續(xù) 5 批合格，則從加嚴轉到 LEVEL II; If there is 3 batches inspection are failed for continuous 5 batches or less 5 batches inspection, sample level will be tighten to Level III from Level II; After continuous 5 batches inspection are passed, then inspection level will be changed to level II from level III;
3.2BBY 執(zhí)行抽樣檢驗的條件 Condition by BBY implementation final random inspection:
3.2.1完成品達到 100% 訂單數(shù)量; 100% order quantities for finishing good assemble are finished;
3.2.2100% 訂單數(shù)量產品完成包裝; 100% order quantities package are finished;
3.2.3供應商內部內部抽樣檢驗完成并合格; Vendor finished internal inspection with pass result;
3.3.4BBY 執(zhí)行抽樣檢驗前,供應商需要提供內部檢驗合格的報告給相應的 SQE; Vendor must provide internal inspection reports to BBY SQE before BBY implement final random inspection;
3.3抽樣方案 Sample solution:
3.3.1確定檢驗抽樣水平,AQL 標準及采樣數(shù)量; Confirm random inspection sample level, AQL standard and sample quantities;
3.3.2確定 PO# LOT 數(shù)量及箱數(shù); Confirm PO# LOT quantities and carton quantities;
3.3.3確定開箱數(shù):N=√N+1,N 為送檢批箱數(shù)，開方后向上取整數(shù); Confirm open box quantities: N=√N+1,N means inspection lot carton quantities,
3.4抽樣步驟 Sampling Steps:
3.4.1點數(shù): 分類堆放整齊 - 按分款，分 PO，分色，分碼等擺放整齊; Count: stack up products by different model number, PO#, Color and size etc.
3.4.2抽箱 Carton Box drawing
1)抽箱要保證抽箱的均勻性,要分別在里層、中間、外層、上層、底層抽取;
2)抽箱要做到隨機性, 保證每個箱都有被抽中的機會;
3)抽箱要應該覆蓋所有的款,所有的色,所有的碼;
4)抽箱不能老在同一個位置抽，也不能只抽取卡板外圍和頂部的產品箱;
3.4.3 抽樣 Sample Draw
1)抽樣時要注意所抽取序列號的分布,不要集中在某集中地一個號段,且尾數(shù)箱必需要開箱 100%檢驗;
2)抽取的樣品需嚴格的監(jiān)控,防止換箱,換貨及箱子搬運;
3)抽樣開箱過程需緊密跟蹤,中斷檢驗時(如休息),需將已檢疵品封妥,做好標記,保管好;