ДСТУ ISO 3951-2:2016 Статистический контроль. Процедуры выбора для проверки по количественному признаку. Часть 2. Планы единичного выбора для последовательной проверки партий относительно независимых характер...
ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ
Державне підприємство
«Український науково-дослідний і навчальний центр
проблем стандартизації, сертифікації та якості»
(
(ДП «УкрНДНЦ»))
Наказ від 11.08.2016 № 236
ISO 3951-2:2013
Sampling procedures for inspection by variables —
Part 2: General specification for single sampling plans indexed
by acceptance quality limit (AQL) for lot-by-lot inspection
of independent quality characteristics
прийнято як національний стандарт
методом «підтвердження» за позначенням
ДСТУ ISO 3951-2:2016
(ISO 3951-2:2013, IDT)
Статистичний контроль. Процедури вибирання для перевірки
за кількісною ознакою. Частина 2. Плани одиничного вибирання
для послідовної перевірки партій відносно незалежних характеристик якості
з 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
4.1 Univariate symbols
4.2 Multivariate 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 and ISO 3951-1
7.1 Relation to ISO 2859-1
7.2 Relation to ISO 3951-1
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 Accommodating measurement variability
10 Planning
11 Choice between variables and attributes
12 Choice between the s-method and Q-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 univariate s-method
16.1 Obtaining a plan, sampling, and preliminary calculations
16.2 Form k acceptability criterion for the s-method
16.3 Form p* acceptability criterion for the s-method
17 Standard multivariate s-method procedures for independent quality characteristics
17.1 General methodology
17.2 Example
18 Standard univariate Q-method procedures
18.1 Obtaining a plan, sampling, and preliminary calculations
18.2 Acceptability criterion for a single specification limit or for double specification limits with separate control
18.3 Acceptability criterion for double specification limits with combined or complex control
19 Standard multivariate Q-method procedures for independent quality characteristics
19.1 General methodology
19.2 Example
20 Standard multivariate combined s-method and ?-method procedures for independent quality characteristics
20.1 General methodology
20.2 Example
21 Procedure during continuing inspection
22 Normality and outliers
22.1 Normality
22.2 Outliers
23 Records
23.1 Control charts
23.2 Lots that are not accepted
24 Operation of switching rules
25 Discontinuation and resumption of inspection
26 Switching between the s-method and Q-method
26.1 Estimating the process standard deviation
26.2 State of statistical control
26.3 Switching from the s-method to the Q-method
26.4 Switching from the Q-method to the s-method
Annex A (normative) Table for determining the sample size code letter
Annex B (normative) Form k single sampling plans: s-method
Annex C (normative) Form k single sampling plans: Q-method
Annex D (normative) Form p* single sampling plans: s-method
Annex E (normative) Form p* single sampling plans: Q-method
Annex F (normative) Values of fs for maximum sample standard deviation (MSSD)
Annex G (normative) Values of fQ for maximum process standard deviation (MPSD)
Annex H (normative) Estimating the process fraction nonconforming for sample size 3: s-method
Annex I (normative) Values of cU for upper control limit on the sample standard deviation
Annex J (normative) Supplementary acceptability constants for qualifying towards
Полная версия документа доступна в тарифе «ВСЕ ВКЛЮЧЕНО».