Foreword
Cooperating organizations
Guide
0 Introduction
1 Scope and field of application
2 References
3 Definitions
4 The first control chart
5 Extending the use of control charts
5.1 The basis of a number-defective control chart
5.2 Taking samples
5.3 Sample size and sampling intervals
5.4 Setting control limits
5.5 Points to remember
6 Refinements in control chart operation and special
types of chart
6.1 General
6.2 Two-way control charts
6.3 Further considerations
7 Tables and instruction sheets
Appendix
A The design of control charts for taking account of
the process variability relative to the
specification limits
Tables
1 Control limits
2 Sample sizes and control limits for compressed-
limit charts
3 Procedure for constructing and using two-way
control charts
4 Procedure for constructing and using a compressed-
limit control chart, with examination by gauging
5 Procedure for constructing and using a compressed-
limit control chart, with examination by
measurement and comparison with a standard
Figures
1 Typical number-defective chart
2 Number of defectives actually found in consecutive
samples when approximately one defective was
expected per sample
3 Curves showing theoretical probability that m or
more defectives will be found in a sample, for
different values of m
4 To show how sampling from individual production
units can aid judgement
5 Specimen two-way chart
6 Specimen two-way chart demonstrating out-of-control
condition
7 Control chart of assembling galvanized steel
dustbins
8 Control chart of lamination pressings from nickel-
iron strip
9 Two-way control chart of cutting glass plates
10 Compressed limit two-way chart of press tool
operation, examination by gauging
11 Compressed limit two-way chart of weighing plastics
moulded pellets, examination by measurement
12 Interpretation of distributions