Foreword
Part One: Quality Control Charts for Quantitative Data
Introduction
A. How to construct the first control chart using
measurements
B. Control chart technique when manufacturing to
specification
1. Process variability and control chart for sample
range
2. Classification of manufacture by process
variability
(i) Range out of control
(ii) Range in control: Relative precision index
(RPI) for low, medium and high relative
precision
3. Rules for construction of control charts for
sample average
(i) Range out of control
(ii) Range in control: Low relative precision
Medium relative precision
High relative precision
Schedule I (for consultation in particular cases)
4. Discussion, with examples of manufacturing
processes classified as in Section B2
General
(i) Range out of control
(ii) Range in control:
a. Low relative precision; low to medium
precision; border-line case
b. Medium relative precision
c. High relative precision
d. Medium and high relative precision,
special case requiring higher assurance
against accepting defective product;
random sampling and batching the product
e. High relative precision; special case
requiring higher assurance against
manufacturing defective product
Part Two: Quality Control Charts for Qualitative Data
Introduction
A. How to construct the first control chart for
number defective
B. Control chart technique when manufacturing to
specification requirements (qualitative data)
1. General
2. Rules for the determination of suitable inspection
limits or gauges
Schedule II
3. Rules for constructing control charts for number
defective, including recommendation for size of
sample
(i) Specification with two limits
(ii) Specification with one limit
4. Discussion, with examples illustrating how control
charts for defectives can be used to estimate the
precision of a process relative to a specification
(i) Defectives all of one kind in a succession
of samples
(ii) Defectives of both kinds in the majority of
samples
(iii) Defectives of both kinds occasionally found
in a sample
(iv) Defectives in a succession of samples well
in control with samples occasionally or
frequently containing no defectives
(v) Accumulated number of defectives, when the
average number expected per sample is less
than unity
Appendices
A. Definitions
B. Tables
C. Miscellaneous comments on sampling procedure,
measurement, etc.
D. Sensitivity of a control chart scheme
E. Discussion of low relative precision case