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Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
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Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
Revision:A0
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1.0 Purpose目
To ensure the scientificalness of sample inspection and to consolidate the sampling of all materials and products,to assurance the quality of productions.
为了保证抽样检查工作科学性,统一所有物料及产品检查之抽样,以保证产品品质.
2.0 Scope范畴
This criteria establishes the sampling plan,for all the raw materials,semi-finished goods and finished goods at VIVI company;If this standard is inconsistent with customer standard,it should be subject to negotiation result.
本规范所制定抽样筹划,合用于我司原材料、半成品、成品检查接受,若此原则与客户原则相抵触时,则依双方商定为准;
3.0 Responsibility 职责
Quality Assurance Dept:Completely take charge of sampling operation in accordance with the requirements of this document.
质量部:负责严格按照此文献有关规定,进行抽样检查;
4.0 Reference Documentation参照文献
《MIL-STD-105E》
5.0 Definition定义
5.1 MIL-STD-105E:International approval standard of sampling,Established by US,English and Canadian three militaries association in April
1963年4月投入使用,由美国,英国及加拿大三军工作組品管协会确立
5.2 AQL:Acceptable quality limit, AC,RE
可接受质量水准;AC:允收, RE:拒收
5.3 Lot:a collection of units of product as inspection lot
检查批:作为检核对象而汇集起来一批产品,每检查批抽样一次;
5.4 The types of defects:Acceptable and bugs,refer to 《Acceptable Standards of IMI And Finished Good》
缺陷分类:可接受和缺陷,参见《来料,成品接受原则》
6.0 Operation Contents作业内容:
6.1 The types of inspection objects
检查品分类
Supplementary Material:Packing box,bolt,hardware,plastic bag,label and so on
辅料:如外箱,螺钉,小五金件,胶袋,贴纸等辅助产品性材料;
Main Material:Besides the supplementary material and consumes material that all raw materials
主料:除辅料及耗材以外所有原材料;
Half-finished product:On the production line all has not been completed
半成品:生产线上所有未完毕产品(重要指生产已组装好成品裸机);
Finished Product:The product which have been finished all the assemblies
成品:已完毕所有工序规定产品;
Consume material:to assist produce,like ethyl alcohol,pickling oil,gummed paper,adhesive tape and so on ;
耗材:辅助生产消耗性材料,如酒精,防锈油,胶纸,封箱胶带等消耗型物料;
6.2 Sampling Plan
抽样方案
The sampling plan uses MIL-STD-105E to inspect the samples by the general inspection level II single sampling plan to carry on these check in lot,details plan refer to the table as below
抽样筹划采用MIL-STD-105E 逐批检查抽样筹划中普通检查水平II单次抽样方案进行抽检, AQL参照下表:
Types
类别
AQL
检查水平
IC
IC类
0.1
L-II
Electrical components
电子元器件
0.25
L-II
Plastic and hardware
塑胶五金材料
1.0
L-II
Packing material
包装材料
1.5
L-II
Half/finished product
半成品/成品
0.4
L-II
Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
DC#:HPT-QM-001-A0
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6.3 The switching inspection procedures:normal,tightened,reduced inspection and non-inspection,if continuously 5 lots tightened inspection fails,the inspection should have been halted
检查严格性规定:分为四种,即正常检查、加严检查、放宽检查和免检;加严检查持续5批不良,则暂停检查;
6.4 In inspection process no matter discover the defect,all samples must complete the inspection.
在检查过程中不论与否发现缺陷,都要完毕所抽样品检查;
6.5 OQC when inspect new product,rework product and product which produced at the assembly line exists major defects must start from tightened plan to carry on;specially after the formal production,under the stabilization of production,must by Manager QA agree only then changes over to the reduced inspection.
OQC在检查新品、返工产品和生产有重大异常时需从加严检查方案开始进行;特别是正式生产后,生产稳定前提下,需由QA经理批准方可转入减量检查。
6.6 Sampling plan shift rule
抽样方案转移规则
6.6.1 IQC according to material number to carry on the accumulation adjustment (different supplier need to be separated statistically);OQC should carry on the accumulation and the adjustment by the different date and the different type.
IQC按照待检品料号进行累积调节(不同供应商需分开记录);OQC应以不同日期和不同机型进行累积和调节。
6.6.2 According to the sampling plan,the random sampling we use,extracts the sample needs to cover the smallest unit of this lot
依照所选用抽样方案进行随机抽样,所抽取样品要力求最大限度覆盖到该批产品最小单位.
6.6.3 Regarding single reduce sample inspection,if defect amounts equals or exceed the received number,but had not achieved refused number,can accept this lot. but must transfer to the normal inspection in the next lot of inspection
对于单次減量抽样检查,如果坏品数达到或超过允收数,但未达到拒收数可接受此批,但在下批检查中要转为正常检查.
6.6.4 Regarding consumes material normal inspection continuously 5 batch of qualified,and production does not have any defect feedback,changes over to the non-inspection flow;
对于耗材正常检查持续5批合格,生产无异常反馈时,转入免检流程;
6.6.5 According to "Sampling Plan Shift Rule Chart" to operate (see appendix);
按《抽样方案严格度转移规则图》中条件进行IQC,OQC转移抽样方案(见附件);
6.6.6 The test of finished products does not use reduce inspection,the non-inspection plan rule;
成品检查不采用放宽、免检方案规则;
7.0 Appendix附件
Sampling plan strict shift rule chart
附件一 《抽样方案严格度转移规则图》
Sample quantity character code table
附件二 《样本量字码表》
Normal inspection single sampling plan
附件三 《正常检查一次抽样方案》
Reduced inspection single sampling plan
附件四 《放宽检查一次抽样方案》
Tightened inspection single sampling plan
附件五 《加严检查一次抽样方案》
附件一:抽样方案严格度转移规则图
IQC进料检查转移规则:
任意一批拒收
或品质不稳定
持续5批内有2批被拒收
持续5批内有2批被拒收
免检
正常检查
持续10批接受
加严检查
持续5批被接受
改进OK
暂停检查
减量检查
持续10批接受
任意一批拒收
OQC最后检查转移规则:
任意一批拒收
或品质不稳定
持续5批内有2批被拒收
持续5批内有2批被拒收
正常检查
持续3批接受
加严检查
持续5批被接受
改进OK
暂停检查
减量检查
Quality Control And Sampling Plan Criteria
质量控制抽样筹划作业规范
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Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
Revision:A0
Page:5/8
Appendix2 Sample quantity character code table
附件二 样本量字码表
Lot 批量
Special Inspection Level特殊检查水平
Normal Inspection Level普通检查水平
S-1
S-2
S-3
S-4
I
II
III
2~8
9~!5
16~25
26~50
51~90
91~150
151~280
281~500
501~1200
1201~3200
3201~10 000
10 001~35 000
35 001~150 000
150 001~500 000
500 001及以上
A
A
A
A
B
B
B
B
C
C
C
C
D
D
D
A
A
A
B
B
B
C
C
C
D
D
D
E
E
E
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
A
A
B
C
C
D
E
E
F
G
G
H
J
J
K
A
A
B
C
C
D
E
F
G
H
J
K
L
M
N
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
Revision:A0
Page:6/8
Appendix 3 Normal inspection single sampling plan
附件三 正常检查一次抽样方案
样本量
字码
样本量
接受质量限(AQL)
0.10
0.15
0.25
0.40
0.65
1.0
1.5
2.5
4.0
6.5
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
A
B
C
2
3
5
0 1
0 1
0 1
D
E
F
8
13
20
0 1
0 1
0 1
1 2
1 2
2 3
1 2
2 3
3 4
G
H
J
32
50
80
0 1
0 1
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
7 8
5 6
7 8
10 11
K
L
M
125
200
315
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
7 8
5 6
7 8
10 11
7 8
10 11
14 15
10 11
14 15
21 22
14 15
21 22
N
P
Q
500
800
1250
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
7 8
5 6
7 8
10 11
7 8
10 11
14 15
10 11
14 15
21 22
14 15
21 22
21 22
R
5 6
7 8
10 11
14 15
21 22
---使用箭头下面第一种抽样方案。如果样本量等于或超过批量,则执行100%检查。
---使用箭头上面第一种抽样方案。
Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
Revision:A0
Page:7/8
Appendix 4 Tightened inspection single sampling plan
附件四 加严检查一次抽样方案
样本量
字码
样本量
接受质量限(AQL)
0.10
0.15
0.25
0.40
0.65
1.0
1.5
2.5
4.0
6.5
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
A
B
C
2
3
5
0 1
0 1
0 1
D
E
F
8
13
20
0 1
0 1
0 1
1 2
1 2
2 3
G
H
J
32
50
80
0 1
0 1
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
8 9
K
L
M
125
200
315
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
8 9
5 6
8 9
12 13
8 9
12 13
18 19
12 13
18 19
N
P
Q
500
800
1250
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
8 9
5 6
8 9
12 13
8 9
12 13
18 19
12 13
18 19
18 19
R
3 4
5 6
8 9
12 13
18 19
---使用箭头下面第一种抽样方案。如果样本量等于或超过批量,则执行100%检查。
---使用箭头上面第一种抽样方案。
Quality Control And Sampling
Plan Criteria
质量控制抽样筹划作业规范
Revision:A0
Page:8/8
Appendix 5 Reduced inspection single sampling plan
附件五 放宽检查一次抽样方案
样本量
字码
样本量
接受质量限(AQL)
0.10
0.15
0.25
0.40
0.65
1.0
1.5
2.5
4.0
6.5
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
Ac Re
A
B
C
2
2
2
0 1
0 1
0 1
D
E
F
3
5
8
0 1
0 1
0 1
1 2
1 2
2 3
G
H
J
13
20
32
0 1
0 1
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
6 7
K
L
M
50
80
125
0 1
1 2
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
6 7
5 6
6 7
8. .9
6 7
8. .9
10 11
8. .9
10 11
N
P
Q
200
315
500
1 2
2 3
1 2
2 3
3 4
2 3
3 4
5 6
3 4
5 6
6 7
5 6
6 7
8. .9
6 7
8. .9
10 11
8. .9
10 11
10 11
R
800
3 4
5 6
6 7
8 9
10 11
---使用箭头下面第一种抽样方案。如果样本量等于或超过批量,则执行100%检查。
---使用箭头上面第一种抽样方案。
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