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BS 6002-1:2007
Superseded
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Sampling procedures for inspection by variables Guide to single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL
Hardcopy , PDF
30-09-2013
English
28-02-2007
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Acceptance quality limit (AQL)
6 Switching rules for normal, tightened and reduced
inspection
7 Relation to BS 6001-1
8 Limiting quality protection
9 Planning
10 Choice between variables and attributes
11 Choice between the "s" and "sigma" methods
12 Choice of inspection level and AQL
13 Choice of sampling plan
14 Preliminary operations
15 Standard procedure for the "s" method
16 Standard procedure for the "sigma" method
17 Procedure during continuing inspection
18 Normality and outliers
19 Records
20 Operation of switching rules
21 Discontinuation and resumption of inspection
22 Switching between the "s" and "sigma" methods
23 Chart A - Sample size code letters of standard single
sampling plans for specified qualities at 95% and 10%
probabilities of acceptance
24 Charts B to R - Operating characteristic curves and
tabulated values for single sampling plans, normal
inspection: "s" method
25 Charts s-D to s-R - Acceptance curves for combined
combined control of double specifications limits:
"s" method
Annexes
Annex A (normative) Table for determining the sample size
code letter
Annex B (normative) Form k "s" method single sampling plans
Annex C (normative) Form k "sigma" method single sampling
plans
Annex D (normative) Values of f[s] for maximum sample
standard deviation (MSSD)
Annex E (normative) Values of f[sigma] for maximum process
standard deviation (MPSD)
Annex F (normative) Estimating the process fraction
nonconforming for sample size 3: "s" method
Annex G (normative) Type p[star] single sampling plans
Annex H (normative) Values of c[u] for upper control limit
on the sample standard deviation
Annex I (normative) Supplementary acceptability constants for
qualifying towards reduced inspection
Annex J (normative) Procedures for obtaining s and sigma
Annex K (informative) Consumer's risk qualities
Annex L (informative) Producer's risks
Annex M (informative) Operating characteristics for the
"sigma" method
Annex N (informative) Estimating the process fraction
nonconforming for sample sizes 3 and 4: "s"
method
Bibliography
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