GB/T 2828.2-2008: Sampling procedures for inspection by attributes -- Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 2828.2-2008 (Self-service in 1-minute)
Newer / historical versions: GB/T 2828.2-2008

Preview True-PDF

Scope

GB/T 2828.2 is sampling system for inspection by attributes indexed by limiting quality
(LQ). This sampling system is used for isolated lot (isolated sequential lot, isolated lot
or single lot) inspection. The transfer rule in GB/T 2828.1 is not applicable here. The
sampling plan provided in this Part of GB/T 2828 serves as a supplement to GB/T
2828.1; it is also compatible with GB/T 2828.1.
In this Part of GB/T 2828, the sampling plan is indexed by limiting quality (LQ) of priority
sequence. Consumer’s risks are lower than 13% under two circumstances, other than
this, they are generally lower than 10%. This indexing method is more convenient than
the special procedure of limiting quality protection in GB/T 2828.1.
NOTE: the sampling plans in GB/T 2828.1 are indexed in accordance with inspection level
and the priority sequence of AQL. In the inspection of continuous lots, the
application of the transfer rule can ensure that the process average in the series
lot is lower than the appointed AQL. However, limiting quality and process average
do not have similar direct relations.
This Part of GB/T 2828 was initially designed for the inspection of disqualified products.
Except from the circumstance with excessively large LQ value, it may also be applied
to the inspection of the number of disqualified products per 100 units. If this Part of
GB/T 2828 is not suitable, user may refer to the special procedure of limiting quality
protection in 12.6.2 in GB/T 2828.1.
This Part of GB/T 2828 provides the following two modes. Choose one of them in
accordance with the demands:
a) Mode A
When the producer and the consumer consider lot as isolated lot for
inspection, this procedure shall be adopted. In other words, the uniqueness
of lot lies in the production of lot by its type.
b) Mode B
When the producer believes that it is continuous sequential lots, while the
consumer accepts in accordance with isolated lot, this procedure shall be
adopted. In other words, the consumer merely accepts one lot (or only a few
lots) in continuous sequential lots. Mode B is provided in Appendix A.

Basic Data

Standard ID	GB/T 2828.2-2008 (GB/T2828.2-2008)
Description (Translated English)	Sampling procedures for inspection by attributes -- Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A41
Classification of International Standard	03.120.30
Word Count Estimation	35,336
Date of Issue	2008-07-28
Date of Implementation	2009-01-01
Older Standard (superseded by this standard)	GB/T 15239-1994
Quoted Standard	GB/T 2828.1-2003; ISO 3534-1-2006; ISO 3534-2-2006
Adopted Standard	ISO 2859-2-1985, NEQ
Regulation (derived from)	People's Liberation Army Ordnance Engineering College
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the quality LQ retrieved by counting the limits of acceptance sampling systems. The sampling system for isolated batches (batch sequences isolated, isolated single batch or batches) test. Here GB/T 2828. 1 transfer rules do not apply. Sampling plan GB/T 2828 This section provides as GB/T 2828. 1 supplement. And is compatible with GB/T 2828. 1. This part of the program using a priority system limits the number of quality LQ index. Apart from the risk of using the two parties with less than 13%, it is usually below 10 %. This special program retrieval method than GB/T 2828. 1 limits the quality of protection is more convenient.