BS 6065:1981
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
04-30-1981
National foreword
Cooperating organizations
Methods
1 Scope and field of application
2 Statistical terminology and symbols
3 General considerations and preliminary conditions
for sampling
4 Sampling for non-destructive tests
5 Sampling for destructive tests
6 Report on sampling
Annexes
A Determination of the arithmetic mean and standard
deviation of a production
B Comparison of the means of two samples
C Equations used for calculating the values given in
the tables
D Bibliography
Tables
1 Change in risks when the number of independent
properties inspected increases
2 Inspection process
3 Single sampling plans for sampling by attributes in
normal inspection
4 Single sampling plans in the case of a guaranteed
value for the mean
5 Conformity decisions
6 Sequential sampling plans in the case of a
guaranteed value limit (mu G) for the mean and a
known standard deviation
7 Development of sequential sampling plan
8 Development of sequential sampling plan
9 Single sampling plans with a fixed unilateral limit
for the individual values and a known standard
deviation
10 Single sampling plans with a unilateral limit fixed
for the individual values and an unknown standard
deviation
11 Confidence interval of mu and sigma for different
sizes n
12 Values for the quantity g for the purpose of
comparing the means of two samples of the same size
n
Figures
1 Example of operating characteristic curves when
several properties are investigated simultaneously
2 Operating characteristic curves for single sampling
plans defined in table 4: testing for a guaranteed
value of the population mean when the standard
deviation is known
3 Procedure for decision on conformity
4 Operating characteristic curves of single sampling
plans of table 9 for AQL = 1.5 %: fixed unilateral
limit for individual values and known standard
deviation
5 Operating characteristic curves of single sampling
plans of table 9 for an AQL = 2.5 %: fixed
unilateral limit for individual values and known
standard deviation
6 Operating characteristic curves of single sampling
plans of table 9 for an AQL = 4.0 %: fixed
unilateral limit for individual values and known
standard deviation
7 Operating characteristic curves of single sampling
plans of table 9 for an AQL = 6.5 %: fixed
unilateral limit for individual values and known
standard deviation
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