Section 3 – 检验抽样要求 Requirement for Sample Inspection

3.1抽样检验标准和要求 Sample Inspection standard & requirement:

3.1.1按照 ANSI/ASQ Z1.4-2003 General Level II 进行随机抽样,AQL 水平参考 BBY 产品规格中的定义; 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产品检验中若连续 5 批或不足 5 批中有 3 批不合格，则从 LEVEL II 转到加严抽检（S-III），若连续 5 批合格，则从加严转到 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 执行抽样检验的条件 Condition by BBY implementation final random inspection:

3.2.1完成品达到 100% 订单数量; 100% order quantities for finishing good assemble are finished;

3.2.2100% 订单数量产品完成包装; 100% order quantities package are finished;

3.2.3供应商内部内部抽样检验完成并合格; Vendor finished internal inspection with pass result;

3.3.4BBY 执行抽样检验前,供应商需要提供内部检验合格的报告给相应的 SQE; Vendor must provide internal inspection reports to BBY SQE before BBY implement final random inspection;

3.3抽样方案 Sample solution:

3.3.1确定检验抽样水平,AQL 标准及采样数量; Confirm random inspection sample level, AQL standard and sample quantities;

3.3.2确定 PO# LOT 数量及箱数; Confirm PO# LOT quantities and carton quantities;

3.3.3确定开箱数:N=√N+1,N 为送检批箱数，开方后向上取整数; Confirm open box quantities: N=√N+1,N means inspection lot carton quantities,

3.4抽样步骤 Sampling Steps:

3.4.1点数: 分类堆放整齐 - 按分款，分 PO，分色，分码等摆放整齐; Count: stack up products by different model number, PO#, Color and size etc.

3.4.2抽箱 Carton Box drawing

1)抽箱要保证抽箱的均匀性,要分别在里层、中间、外层、上层、底层抽取;

2)抽箱要做到随机性, 保证每个箱都有被抽中的机会;

3)抽箱要应该覆盖所有的款,所有的色,所有的码;

4)抽箱不能老在同一个位置抽，也不能只抽取卡板外围和顶部的产品箱;

3.4.3 抽样 Sample Draw

1)抽样时要注意所抽取序列号的分布,不要集中在某集中地一个号段,且尾数箱必需要开箱 100%检验;

2)抽取的样品需严格的监控,防止换箱,换货及箱子搬运;

3)抽样开箱过程需紧密跟踪,中断检验时(如休息),需将已检疵品封妥,做好标记,保管好;