ДСТУ ISO 3951-1:2016 Статистический контроль. Процедуры выбора для проверки по количественному признаку. Часть 1. Планы единичного выбора для последовательной проверки партий с единичной характеристикой качес...

ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

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проблем стандартизації, сертифікації та якості»
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Наказ від 11.08.2016 № 236

ISO 3951-1:2013

Sampling procedures for inspection by variables —
Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL)
for lot-by-lot inspection for a single quality characteristic and a single AQL

прийнято як національний стандарт
методом «підтвердження» за позначенням
 

ДСТУ ISO 3951-1:2016
(ISO 3951-1:2013, IDT)

Статистичний контроль. Процедури вибирання для перевірки
за кількісною ознакою. Частина 1. Плани одиничного вибирання
для послідовної перевірки партій з одиничною характеристикою якості
та визначеною межею прийняття якості. Загальні технічні вимоги

З наданням чинності від 2016-09-01

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols

5 Acceptance quality limit (AQL)

5.1 Concept

5.2 Use

5.3 Specifying AQLs

5.4 Preferred AQLs

5.5 Caution

5.6 Limitation

6 Switching rules for normal, tightened, and reduced inspection

7 Relation to ISO 2859-1

7.1 Similarities

7.2 Differences

8 Consumer protection

8.1 Use of individual plans

8.2 Consumer’s risk quality (CRQ) tables

8.3 Producer’s risk tables

8.4 Operating characteristic (OC) curves

9 Allowing for measurement uncertainty

10 Planning

11 Choice between variables and attributes

12 Choice between the s-method and ?-method

13 Choice of inspection level and AQL

14 Choice of sampling scheme

14.1 Standard plans

14.2 Special plans

15 Preliminary operations

16 Standard procedures for the s-method

16.1 Obtaining a plan, sampling, and preliminary calculations

16.2 Acceptability criteria for single specification limits

16.3 Graphical method for a single specification limit

16.4 Acceptability criterion for combined control of double specification limits

17 Standard procedures for the Q-method

17.1 Obtaining a plan, sampling, and preliminary calculations

17.2 Acceptability criteria for a single specification limit

17.3 Acceptability criterion for combined control of double specification limits

18 Procedure during continuing inspection

19 Normality and outliers

19.1 Normality

19.2 Outliers

20 Records

20.1 Control charts

20.2 Lots that are not accepted

21 Operation of switching rules

22 Discontinuation and resumption of inspection

23 Switching between the s-method and Q-method

23.1 Estimating the process standard deviation

23.2 State of statistical control

23.3 Switching from the s-method to the Q-method

23.4 Switching from the a-method to the s-method

24 Charts B to R — Operating characteristic curves and tabulated values for single sampling plans, normal inspection: s-method

24.1 Operating characteristic curves and tabulated values for sample size code letter B: s-method

24.2 Operating characteristic curves and tabulated values for sample size code letter C: s-method

24.3 Operating characteristic curves and tabulated values for sample size code letter D: s-method

24.4 Operating characteristic curves and tabulated values for sample size code letter E: s-method

24.5 Operating characteristic curves and tabulated values for sample size code letter F: s-method

24.6 Operating characteristic curves and tabulated values for sample size code letter G: s-method

24.7 Operating characteristic curves and tabulated values for sample size code letter H: s-method

24.8 Operating characteristic curves and tabulated values for sample size code letter J: s-method

24.9 Operating characteristic curves and tabulated values for sample size code letter K: s-method

24.10 Operating characteristic curves and tabulated values for sample size code letter L: s-method

24.11 Operating characteristic curves and tabulated values for sample size code letter M: s-method

24.12 Operating characteristic curves and tabulated values for sample size code letter N:method

24.13 Operating characteristic curves and tabulated values for sample size code letter P: s-method

24.14 Operating characteristic curves and tabulated values for sample size code letter Q: s-method

24.15 Operating characteristic curves and tabulated values for sample size code letter R: s-method

25 Charts s-D to s-R — Acceptance curves for combined control of double specification limits: s-method

Annex A (normative) Table for determining the sample size code letter

Annex B (normative) Form k for single sampling plans: s-method

Annex C (normative) Form k for single sampling plans: a-method

Annex D (normative) Values off s for maximum sample standard deviation (MSSD)

Annex E (normative) Values of f a for maximum process standard deviation (MPSD)

Annex F (normative) Estimating the process fraction nonconforming for sample size 3: s-method

Annex G (normative) Single sampling plans of Form p*

Annex H (normative) Values of cu for upper control limit on the sample standard deviation

Annex I (normative) Supplementary acceptability constants for qualifying towards reduced inspection

Annex J (normative) Procedures for obtaining s and Q

Annex K (informative) Consumer's risk qualities

Annex L (informative) Producer's risks

Annex M (informative) Operating characteristics for the a-method

 Annex N (informative) Estimating the process fraction nonconforming for sample sizes 3 and 4: s-method

Annex O (normative) Accommodating measurement variability

Bibliography