DEFSTAN 05-71(PT1)/2(2006) : 2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
02-17-2023
English
05-31-2006
Foreword
Introduction
1 Scope
1.1 Coverage
1.2 Objective
1.3 Lot quality
2 Warning
3 Field of Application
4 Normative and Informative References
5 Definitions
5.1 Acceptance Quality Limit (AQL)
5.2 Switching Rules
5.3 Inspection by Variables
5.4 Acceptance Sampling by Variables
5.5 Limiting Quality
5.6 Reference Target
5.7 Reference Range
5.8 Collecting Target
5.9 Nonconforming Projectile
5.10 Acceptability Constant p*
5.11 Launching System
6 Symbols
7 Similarities to BS 6002-2
8 Acceptance Quality Limit (AQL)
8.1 Use
8.2 Specifying AQLs
8.3 Preferred AQLS
8.4 Caution
9 Switching Rules
9.1 Tightened Inspection
9.2 Discontinuation of Inspection
9.3 Resumption of Inspection
9.4 Reduced Inspection
9.5 Details
10 Production Continuity and Operating Characteristic
Curves
10.1 Continuous Production
10.2 Non-continuous Production
10.3 Operating Characteristic Curves
11 Planning
12 Choice of Inspection Level and AQL
13 Choice of Inspection Level and AQL
13.1 Schemes Contained In this Defence Standard
13.2 Special Schemes
14 Preliminary Operations
15 Standard Procedure under Normal Inspection
15.1 Obtaining a Plan
15.2 Obtaining the sample Data
15.3 Determining Lot Acceptability
15.3.1 Choice of Method
15.3.2 Graphical method
15.3.3 Tabular method
15.3.4 Computer method
16 Procedure whilst Continuing Inspection
17 Detection and Accommodation of Outliers
17.1 Detection of Outliers
17.2 Accommodation of Outliers
18 Records
18.1 Control Charts
18.2 Records of p
18.3 Lots that are Not Accepted
19 Operations of Switching Rules
19.1 Original Inspection
19.2 Start of Inspection
19.3 Normal Inspection to Tightened Inspection
19.4 Tightened Inspection to Normal Inspection
19.5 Normal Inspection to Reduced Inspection
19.6 Reduced Inspection to Normal Inspection
20 Discontinuation and Resumption of Inspection
21 Acceptance Curves and Operating Characteristic Curves
for Tightened and Reduced Inspection
Diagram A - Sample Size Code Letters of Standard Single
Sampling Plans for Specified Qualities at 95%
and 10% Probabilities of Acceptance under Normal
Inspection
Charts B to Q - Operating Characteristic Curves and Tables
Charts B.1 to Q.1 Acceptance Charts
Annex A - Table for Determining the Sample Size Code Letter
Annex B - Form p* Single Sampling Plans
Annex C - Constants for Determining the Maximum Sample
Standard Deviation
Annex D - Producer's Risks
Annex E - Consumer's Risk Qualities
Annex F - Estimating the process Quality Level
Annex G - Outlier Test
Annex H - Statistical Theory for Consistency Proof
H.1 Symbols
H.2 The Normal Distribution
H.3 The Process Fraction of Nonconforming Projectiles
H.4 The Symmetric Beta Distribution
H.5 Acceptability Criteria
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