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Position: Chinese Standard in English/GB/T 2829-2002
GB/T 2829-2002   Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) (English Version)
Standard No.: GB/T 2829-2002 Status:valid remind me the status change

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Standard No.: GB/T 2829-2002
English Name: Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
Chinese Name: 周期检验计数抽样程序及表(适用于对过程稳定性的检验)
Chinese Classification: A41    Mathematics
Professional Classification: GB    National Standard
Issued by: AQSIQ
Issued on: 2000-6-13
Implemented on: 2003-1-1
Status: valid
Superseding:GB/T 2829-1987 Sampling procedures and tables for periodic inspection by attributes ( Apply to inspection of stability for productive process)
Language: English
File Format: PDF
Word Count: 9000 words
Price(USD): 220.0
Delivery: via email in 1 business day
1 Scope This standard specifies once, twice and quintic sampling plan and sampling program taking nonconforming quality level (expressed with percent nonconforming or nonconformities per 100 items) as the quality index, which applies to the inspection of process stability. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendment to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard. GB/T 3358.1-1993 "Terms for Statistics-Part I: Terms for General Statistics" GB/T 3358.2-1993 "Terms for Statistics-Part II: Terms for Statistical Quality Control" GB/T 28281 "Sampling Procedures for Inspection by Attributes-Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection" (idt ISO 2859-1) 3 Terms, Definitions and Symbols 3.1 Terms and definitions The established terms and definitions in GB/T 3358 and the following ones are applicable to this standard. 3.1.1 Item It refers to the basic unit to be classified for implementing the sampling inspection. For example: single piece product, a pair of products, a group of products, one parts, or the product with a certain length, area, volume and weight. It may be consistent or not with the item specified by purchasing, sales, production and shipment. 3.1.2 Inspection lot (lot) It refers to the product or service with a certain quantity, which is collected according to a certain condition. Note: "Lot" in this standard refers to all items inspected and manufactured for production forming, or all items manufactured within one specified period during lot production process after passing through production forming inspection. 3.1.3 Lot size It refers to the quantity of the item in the lot. 3.1.4 Sample unit It refers to the item extracted from the lot for inspection. 1) It is in revision process (revision of GB/T 2828-1987 "Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes (Apply to Inspection of Successive Lots or Batches" and is identical to ISO 2859-1:1999. 3.1.5 Sample It refers to the whole of the sample unit. 3.1.6 Sample number It refers to the sample unit quantity involved in the sample. 3.1.7 Nonconformity The quality characteristic of the item does not conform to the specification. The nonconformity is classified according to the significance of the quality characteristic expressing the significance of item quality or the severity of quality characteristic nonconformity, which is generally classified into: Class A nonconformity, Class B nonconformity and Class C nonconformity. 3.1.8 Class A nonconformity The extremely important quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does extremely severely not conform to the specification. 3.1.9 Class B nonconformity The important quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does severely not conform to the specification. 3.1.10 Class C nonconformity The general quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does slightly not conform to the specification. 3.1.11 Nonconforming item It refers to the unit with one or more nonconformity. It may generally be classified into according to the nonconformity class: Class A nonconforming item, Class B nonconforming item and Class C nonconforming item. 3.1.12 Class A nonconforming item It refers to the item having one or more than one Class A nonconformity and may include Class B and/or Class C nonconformity. 3.1.13 Class B nonconforming item It refers to the item having one or more than one Class B nonconformity and may include Class C nonconformity, but exclude Class A nonconformity. 3.1.14 Class C nonconforming item It refers to the item having one or more than one Class C nonconformity but exclude Class A and Class B nonconformity. 3.1.15 Percent nonconforming The total number of all nonconforming items in the lot divides by the lot size and then multiply 100. Namely: Percent nonconforming-(Total number of nonconforming items in the lot)/lot size)×100 3.1.16 Nonconformities per 100 items The total nonconformity number of all items in the lot divides by the lot size and then multiply 100. Namely: Nonconformities per 100 items-(Total nonconformity number of all units in the lot/lot size)×100 3.1.17 Lot quality It refers to the quality of inspection lot with single submission (expressed with percent nonconforming or nonconformities per 100 items). 3.1.18 Rejectable quality level It refers to the lower limit value of unacceptable lot quality in the sampling inspection. 3.1.19 Inspection It refers to the activity to determine, inspect and test one or more characteristics and compare with specified requirements in order to determine whether the product or process is qualified. 3.1.20 Inspection by attributes It refers to the inspection determining whether the item is conforming item or nonconforming item or counting the nonconformities of item according to one group of or one technical requirements specified in the product technology standard. 3.1.21 Lot-by-lot inspection It refers to the inspection for each lot in the series of lots. 3.1.22 Periodic inspection It refers to the inspection to extract sample from some lot or several lots with qualified lot-by-lot inspection in order to judge whether the stability of the production process meets the specified requirements within specified period (by time, or by manufactured item quantity). 3.1.23 Production forming inspection It refers to the periodic and lot-by-lot inspection in order to judge whether a certain production line can manufacture the product meeting the quality requirements by lot. 3.1.24 Lot production inspection It refers to the periodic and lot-by-lot inspection in order to judge whether a certain production line can maintain to manufacture the products meeting the quality requirements by lot after passing through the production forming inspection. 3.1.25 Conformities It refers to the maximum number of the permissible nonconformity or nonconforming item in the sample of the conforming lot in attributes acceptance sampling. 3.1.26 Nonconformities It refers to the minimum number of the permissible nonconformity or nonconforming item in the sample of the nonconforming lot in attributes acceptance sampling. 3.1.27 Distinguishing array It refers to the combination of the conformities and nonconformities or conformities series and nonconformities series. 3.1.28 Sampling plan It specifies one specific plan for the sample number and related acceptance criterion. 3.1.29 Sampling program It refers to the process using the sampling plan to judge lot conforming or not. 3.1.30 Single sampling plan It refers to the sampling plan composed of the combination of sample number and distinguishing array [Ac, Re]. 3.1.31 Twice sampling plan It refers to the sampling plan composed of the combination of the first sample number n1, the second sample number and distinguishing array [A1, A2, R1, R2]. 3.1.32 Quintic sampling plan It refers to the sampling plan composed of the combination of sample number series n1, n2, n3, n4 and n5 and distinguishing array [A1, A2, A3, A4, A5, R1, R2, R3, R4 and R5]. 3.1.33 Distinguishing level It refers to the grade to distinguish the ability size that the production process stability does not conform to the specified requirements. 3.1.34 Acceptance probability It has given quality level lot or the probability that the process is judged as qualified when using one determined sampling plan. 3.1.35 Average sample number It refers to the sample number of the average lot to be inspected when using a certain sampling plan to make conformity or nonconformity decision. 3.1.36 Characteristic curve of random inspection (OC curve) For the given sampling plan, it expresses the functional relation curve of lot acceptance probability and lot quality level. 3.1.37 Average sample number curve (ASN curve) For the given sampling plan, it expresses the functional relation curve of average sample number and lot quality level. 3.2 Symbols N: Lot. N: Sample number. Note: When it is necessary to distinguish the first sample number, the second sample number …, respectively plus subscript 1, 2…. For example, n5 expresses the fifth sample number. Ac: Conformities. Re: Nonconformities. Note: If it is necessary to distinguish the first, second …conformity and nonconformities, respectively change the subscript c and e into 1, 2…. For example, A2 expresses the second conformity; R3 expresses the third nonconformity. [Ac, Re]: Distinguishing array of single sampling plan. [A1, A2, R1, R2]: Distinguishing array of twice sampling plan. [A1, A2, A3, A4, A5, R1, R2, R3, R4, R5]: Distinguishing array of quintic sampling plan. P: Lot quality. Pa: Lot acceptance probability. DL: Distinguishing level. RQL: Rejectable quality level. ASN: Average sample number.
Contents Foreword I 1 Scope 2 Normative References 3 Terms, Definitions and Symbols 4 Inspection Procedures 5 Implementation of Inspection 6 Characteristic Curve of Random Inspection and Average Sample Number Curve
Referred in GB/T 2829-2002:
*GB/T 3358.1-1993 Terms for statistics. Part Ⅰ: Terms for general statistics
*GB/T 3358.2-1993 Terms for statistics Part Ⅱ:terms for statisticalquality control
*GB/T 28281-2012 Plain bearings - Quality characteristics - Statistical process control (SPC)
GB/T 2829-2002 is referred in:
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* GB/T 5171-2002 General technical requirements for small power motors
* GB/T 2694-2010 Specification of manufacturing for transmission line tower
* GB/T 18801-2008 Air cleaner
* GB 2811-2007 Safety helmet
* AQ 6207-2007 Portable Carrier Catalytic Methane Alarm Detector
* GB 6952-2005 Sanitary Wares
* GB/T 2694-2010 Specification of manufacturing for transmission line tower
* QB/T 4013-2010 House hold stainless steel sink
* GB/T 23447-2009 Shower outlets for bathing
* GB/T 18801-2008 Air cleaner
* GB/T 18801-2008 Air cleaner
* QB 1880-2008 Front forks for bicycles
* GB 2023-2003 Food additive—Lactic acid
* GB 2023-2003 Food additive—Lactic acid
* QB/T 1560-2006 Accessories of bathroom
* GB/T 15114-2009 Aluminum alloy die castings
* GB/T 24293-2009 Digital thermostatic faucet
* GB/T 25765-2010 Rolling bearings—Ball bearings for automotive transmission
* QB/T 4013-2010 House hold stainless steel sink
* JB/T 7590-2005 Specification for steel undee spring used in electric machines
* JB/T 8563-2010 Rolling bearings-Water pump bearings
* MT/T 98-2006 Inspection specifications of hose and hose kit for powered support
* JB/T 10189-2010 Rolling bearings - Constant velocity universal joints and assemblies for automobiles
* JB/T 10238-2011 Automotive wheel bearing units
* JB/T 10531-2005 Rolling bearings - Double-row angular contact bearings for electromagnetic clutch of car air-conditioner
* JB/T 10859-2008 Rolling bearings—Tensioner and idler bearings and units for automotive engine
* GB/T 7417-2010 AX Series relays for railway signaling
* GB/T 19706-2005 Football shoes
* GB/T 25338.1-2010 Switch machine for railway—Part 1:General specification
* TB/T 3242-2010 General specification of LED light signals for railways
* YY/T 0492-2004 Implantable pacing lead
* JB/T 6319-2010 Basic technical requirements for resistor
* HG/T 3985-2007 Polytetrafluoroethylene bellows compensators
* JB/T 5312-2011 Rolling Bearings - Clutch Release Bearing Units for Automobiles
* GB/T 6046-2007 Analogue quartz clocks
* GB/T 6145-2010 Manganin and constantan alloy wires sheet and rolled wires for precision electrical resistance
* YY/T 0079-2006 Implants for surgery -- Metallic clip
* GB 18145-2003 Ceramic cartridge faucets
* JC/T 932-2003 Drainage fittings for sanitary wares
* GB/T 18801-2008 Air cleaner
* GB 12021.6-2008 Minimum allowable values of energy efficiency and energy efficiency grades for automatic electric rice cookers
* GB 12021.9-2008 Minimum allowable values of energy efficiency and energy efficiency grades of AC electric fans
* GB 19044-2003 Limited Values of Energy Efficiency and Rating Criteria of Self-ballasted Fluorescent Lamps for General Lighting Service
* GB 12021.2-2008 The maximum allowable values of the energy consumption and energy efficiency grade for household refrigerators
* GB 6952-2005 Sanitary Wares
* CJ/T 414-2012 Technical Requirements of Aluminum-steel Conductor Rail for Urban Rail Transit
* GB/T 19425-2003 Universal Technical Requirements of Anti-counterfeiting Technical Products
* GB 19043-2003 Limited Values of Energy Efficiency and Rating Criteria of Double-capped Fluorescent Lamps for General Lighting Service
* GB 24849-2010 Minimum allowable values of energy efficiency and energy efficiency grades for household and similar microwave ovens
* GB 19574-2004 Limited values of energy efficiency and evaluating values of energy conservation of ballast for high-pressure sodium lamps
* GB 20053-2006 The Minimum Allowable Values of Energy Efficiency and the Energy Efficiency Grades for Ballast of Metal-Halide Lamps
* GB/T 23332-2009 Humidifiers
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* GB 16999-2010 Universal technical requirements of RMB—Banknote discriminating device
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* GB/T 18801-2015
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* GB/T 9098-2008 Hermetic motor-compressors for refrigerators
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* GB 13623-2003 Requirement of safety and characterstics of aluminium pressure cooker
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*QB/T 4623-2013 Glassware - Ornament
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*GB 12021.2-2015 The maximum allowable values of the energy consumption and energy efficiency grade for household refrigerators
*GB 12021.4-2013 Maximum allowable values of the energy,water consumption and grades for household electric washing machines
*MT/T 188.1-2006 Emulsion pump station for coal mine-Part 1: Pump station
*GA 374-2001 Thief resistant electroinc locks
*MT/T 986-2006 Quick adapter with U pin and accessories for mine
*GB 11417.2-2012 Ophthalmic optics—Contact lenses—Part 2:Rigid contact lenses specification
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*GB/T 23103-2008 Beach umbrella
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*GB/T 13380-2007 A.C.electric fans and regulators
*GB/T 24908-2014 Non-directional self-ballasted LED-lamps for general lighting services―Performance requirements
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*GB 29539-2013 Minimum allowable values of energy efficiency and energy efficiency grades for range hoods
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*GB/T4288-2018 Household and similar electrical washing machine
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*GB/T 8059-2016 Household and similar refrigerating appliances
*QB/T 2934-2018 Grass-platied product
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*GB/T 32432-2015 Domestic steel cookware
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*GB/T 26775-2011 General technical specification for audio video system on board
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*QB/T 1438-2007 Notebook
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*GB/T 37562-2019 Technical conditions of pressurized water electrolysis system for hydrogen production
*QB/T 1897-1993 Horology –Water-resistant watches
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*T/SFSF 000003-2019 Grease-water separator in catering
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*SJ/T 11343-2006 General specification for digital television LCD displays
*MT/T 1007-2006 Information transmission interface for coal mine
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*QB/T 2047-2013 Metal watch bracelets
*MT/T 247-2006 Pick holder for shearer and boom roadheader
*QB/T 1562-2014 Household and Similar Electrical Vacuum Cleaners
*GB/T 25441-2010 The motors for vacuum cleaners
*QB/T 1236-2008 Induction cooker
*GB/T 17713-2011 Range hood
*WJ 9085-2015 Industrial digital electronic detonator
*GB 19258-2012 Ultraviolet germicidal lamp
*QB/T 5130-2017 Electrical wet vacuum cleaners
*GB/T 13380-2018 A.C.electric fans and regulators
*GB/T 22764.1-2008 Cabinets for low-voltage switchgear—Part 1:Generic specification
*GB 11239.1-2005 Operation microscopes Part1: Requirements and test methods
*GB/T 23137-2020 Heat pump water heater for household and similar application
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*GB/T 26750-2011 Sanitary ware - Pressure assistant water flushing devices
*GB/T 14471-2013 General Specification for Headphones
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*QB/T 2858-2007 Schoolbag
*GB/T 13979-2008 Mass spectrometer leak detector
*GB 32031-2015 Minimum allowable values of energy efficiency and energy efficiency grades for waste submersible motor-pumps
*GB/T 23103-2018 Beach umbrella
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*GB/T 12361-2016 Steel die forgings―General specification
*GB/T 41411-2022 Children's watches
*QB/T 5661-2021 Clothes caring machine
*GB/T 10811-2022 Under-glaze/in-glaze decoration porcelain
*GB/T 20205-2006 Micropore anti-counterfeiting marker generated by heavy ion
*GB/T 18348-2022 Bar code for commodity—Bar code symbol print quality verification
*GB/T 22264.1-2022 Mounted digital display electric measuring instruments—Part 1:Definitions and general requirements common to all parts
*JB/T 6169-2006 Metal Bellows
*FZ/T 93048-2010 Felting needles
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Code of China
Standard
GB/T 2829-2002  Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) (English Version)
Standard No.GB/T 2829-2002
Statusvalid
LanguageEnglish
File FormatPDF
Word Count9000 words
Price(USD)220.0
Implemented on2003-1-1
Deliveryvia email in 1 business day
Detail of GB/T 2829-2002
Standard No.
GB/T 2829-2002
English Name
Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
Chinese Name
周期检验计数抽样程序及表(适用于对过程稳定性的检验)
Chinese Classification
A41
Professional Classification
GB
ICS Classification
Issued by
AQSIQ
Issued on
2000-6-13
Implemented on
2003-1-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 2829-1987 Sampling procedures and tables for periodic inspection by attributes ( Apply to inspection of stability for productive process)
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
220.0
Keywords
GB/T 2829-2002, GB 2829-2002, GBT 2829-2002, GB/T2829-2002, GB/T 2829, GB/T2829, GB2829-2002, GB 2829, GB2829, GBT2829-2002, GBT 2829, GBT2829
Introduction of GB/T 2829-2002
1 Scope This standard specifies once, twice and quintic sampling plan and sampling program taking nonconforming quality level (expressed with percent nonconforming or nonconformities per 100 items) as the quality index, which applies to the inspection of process stability. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendment to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard. GB/T 3358.1-1993 "Terms for Statistics-Part I: Terms for General Statistics" GB/T 3358.2-1993 "Terms for Statistics-Part II: Terms for Statistical Quality Control" GB/T 28281 "Sampling Procedures for Inspection by Attributes-Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection" (idt ISO 2859-1) 3 Terms, Definitions and Symbols 3.1 Terms and definitions The established terms and definitions in GB/T 3358 and the following ones are applicable to this standard. 3.1.1 Item It refers to the basic unit to be classified for implementing the sampling inspection. For example: single piece product, a pair of products, a group of products, one parts, or the product with a certain length, area, volume and weight. It may be consistent or not with the item specified by purchasing, sales, production and shipment. 3.1.2 Inspection lot (lot) It refers to the product or service with a certain quantity, which is collected according to a certain condition. Note: "Lot" in this standard refers to all items inspected and manufactured for production forming, or all items manufactured within one specified period during lot production process after passing through production forming inspection. 3.1.3 Lot size It refers to the quantity of the item in the lot. 3.1.4 Sample unit It refers to the item extracted from the lot for inspection. 1) It is in revision process (revision of GB/T 2828-1987 "Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes (Apply to Inspection of Successive Lots or Batches" and is identical to ISO 2859-1:1999. 3.1.5 Sample It refers to the whole of the sample unit. 3.1.6 Sample number It refers to the sample unit quantity involved in the sample. 3.1.7 Nonconformity The quality characteristic of the item does not conform to the specification. The nonconformity is classified according to the significance of the quality characteristic expressing the significance of item quality or the severity of quality characteristic nonconformity, which is generally classified into: Class A nonconformity, Class B nonconformity and Class C nonconformity. 3.1.8 Class A nonconformity The extremely important quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does extremely severely not conform to the specification. 3.1.9 Class B nonconformity The important quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does severely not conform to the specification. 3.1.10 Class C nonconformity The general quality characteristic of the item does not conform to the specification, or the quality characteristic of the item does slightly not conform to the specification. 3.1.11 Nonconforming item It refers to the unit with one or more nonconformity. It may generally be classified into according to the nonconformity class: Class A nonconforming item, Class B nonconforming item and Class C nonconforming item. 3.1.12 Class A nonconforming item It refers to the item having one or more than one Class A nonconformity and may include Class B and/or Class C nonconformity. 3.1.13 Class B nonconforming item It refers to the item having one or more than one Class B nonconformity and may include Class C nonconformity, but exclude Class A nonconformity. 3.1.14 Class C nonconforming item It refers to the item having one or more than one Class C nonconformity but exclude Class A and Class B nonconformity. 3.1.15 Percent nonconforming The total number of all nonconforming items in the lot divides by the lot size and then multiply 100. Namely: Percent nonconforming-(Total number of nonconforming items in the lot)/lot size)×100 3.1.16 Nonconformities per 100 items The total nonconformity number of all items in the lot divides by the lot size and then multiply 100. Namely: Nonconformities per 100 items-(Total nonconformity number of all units in the lot/lot size)×100 3.1.17 Lot quality It refers to the quality of inspection lot with single submission (expressed with percent nonconforming or nonconformities per 100 items). 3.1.18 Rejectable quality level It refers to the lower limit value of unacceptable lot quality in the sampling inspection. 3.1.19 Inspection It refers to the activity to determine, inspect and test one or more characteristics and compare with specified requirements in order to determine whether the product or process is qualified. 3.1.20 Inspection by attributes It refers to the inspection determining whether the item is conforming item or nonconforming item or counting the nonconformities of item according to one group of or one technical requirements specified in the product technology standard. 3.1.21 Lot-by-lot inspection It refers to the inspection for each lot in the series of lots. 3.1.22 Periodic inspection It refers to the inspection to extract sample from some lot or several lots with qualified lot-by-lot inspection in order to judge whether the stability of the production process meets the specified requirements within specified period (by time, or by manufactured item quantity). 3.1.23 Production forming inspection It refers to the periodic and lot-by-lot inspection in order to judge whether a certain production line can manufacture the product meeting the quality requirements by lot. 3.1.24 Lot production inspection It refers to the periodic and lot-by-lot inspection in order to judge whether a certain production line can maintain to manufacture the products meeting the quality requirements by lot after passing through the production forming inspection. 3.1.25 Conformities It refers to the maximum number of the permissible nonconformity or nonconforming item in the sample of the conforming lot in attributes acceptance sampling. 3.1.26 Nonconformities It refers to the minimum number of the permissible nonconformity or nonconforming item in the sample of the nonconforming lot in attributes acceptance sampling. 3.1.27 Distinguishing array It refers to the combination of the conformities and nonconformities or conformities series and nonconformities series. 3.1.28 Sampling plan It specifies one specific plan for the sample number and related acceptance criterion. 3.1.29 Sampling program It refers to the process using the sampling plan to judge lot conforming or not. 3.1.30 Single sampling plan It refers to the sampling plan composed of the combination of sample number and distinguishing array [Ac, Re]. 3.1.31 Twice sampling plan It refers to the sampling plan composed of the combination of the first sample number n1, the second sample number and distinguishing array [A1, A2, R1, R2]. 3.1.32 Quintic sampling plan It refers to the sampling plan composed of the combination of sample number series n1, n2, n3, n4 and n5 and distinguishing array [A1, A2, A3, A4, A5, R1, R2, R3, R4 and R5]. 3.1.33 Distinguishing level It refers to the grade to distinguish the ability size that the production process stability does not conform to the specified requirements. 3.1.34 Acceptance probability It has given quality level lot or the probability that the process is judged as qualified when using one determined sampling plan. 3.1.35 Average sample number It refers to the sample number of the average lot to be inspected when using a certain sampling plan to make conformity or nonconformity decision. 3.1.36 Characteristic curve of random inspection (OC curve) For the given sampling plan, it expresses the functional relation curve of lot acceptance probability and lot quality level. 3.1.37 Average sample number curve (ASN curve) For the given sampling plan, it expresses the functional relation curve of average sample number and lot quality level. 3.2 Symbols N: Lot. N: Sample number. Note: When it is necessary to distinguish the first sample number, the second sample number …, respectively plus subscript 1, 2…. For example, n5 expresses the fifth sample number. Ac: Conformities. Re: Nonconformities. Note: If it is necessary to distinguish the first, second …conformity and nonconformities, respectively change the subscript c and e into 1, 2…. For example, A2 expresses the second conformity; R3 expresses the third nonconformity. [Ac, Re]: Distinguishing array of single sampling plan. [A1, A2, R1, R2]: Distinguishing array of twice sampling plan. [A1, A2, A3, A4, A5, R1, R2, R3, R4, R5]: Distinguishing array of quintic sampling plan. P: Lot quality. Pa: Lot acceptance probability. DL: Distinguishing level. RQL: Rejectable quality level. ASN: Average sample number.
Contents of GB/T 2829-2002
Contents Foreword I 1 Scope 2 Normative References 3 Terms, Definitions and Symbols 4 Inspection Procedures 5 Implementation of Inspection 6 Characteristic Curve of Random Inspection and Average Sample Number Curve
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