The Certified Quality Engineer Handbook Ch. 23: Acceptance Sampling

Dr. Joan Burtner Certified Quality Engineer

Associate Professor of

Industrial Engineering and Industrial Management

The Certified Quality Engineer Handbook The Certified Quality Engineer Handbook Ch. 23: Acceptance SamplingCh. 23: Acceptance Sampling

Spring 2014ISE 428 ETM 591 JMB CH 23 Lecture 2

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Chapter 23

Sampling Concepts Acceptance Sampling Vocabulary Operating Characteristics (OC) Curve Sampling Plan Designs

Single Sampling Double Sampling Multiple Sampling

ANSI/ASQ Z1.4-2003 Defect Classification Levels of Inspection

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Spring 2014ISE 428 ETM 591 JMB CH 23 Lecture 2

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Acceptance Sampling Handout Review

Purpose of acceptance sampling Mathematical basis for acceptance

sampling Single sampling plan variables: p1,

p2, alpha, beta, n, c Specify four variables, deduce the

other two (typically n and c) Sampling plan designs using a

nomogram

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Spring 2014ISE 428 ETM 591 JMB CH 23 Lecture 2

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ANSI/ASQ Standards

Industry-standard Prescription for Sampling Methods

Defect Classification (page 211) Critical Major Minor

Levels of Inspection (page 211) Normal Tightened Reduced Special

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Spring 2014ISE 428 ETM 591 JMB CH 23 Lecture 2

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ANSI/ASQ Switching Rules

Figure 23.10 (page 212)Normal to tightenedTightened to normalNormal to reduced

Discontinuation of Inspection

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Spring 2014ISE 428 ETM 591 JMB CH 23 Lecture 2

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CQE Textbook Examples

Example 23.3 (page 205-206)Design of double sampling planDecisions for accept or reject or

continueExample 23.6 (page 214-215)

Refers to CD-ROM tablesShows results for single, double, and

multiple sampling

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