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标题: 抽样检验标准[ANSI-ASQ Z1.4-2003] [打印本页]

作者: uphui 时间: 2010-4-27 14:46
标题: 抽样检验标准[ANSI-ASQ Z1.4-2003]
2003版，不知是不是最新。
英文的。共5个分卷，PDF格式。
SANIPLING PROCEDURES AND TABLES
FOR INSPECTION BY ATTRIBUTES
1. SCOPE
1.1 PURPOSE. This publication establishes sampling
plans and procedures for inspection by attributes. When
specified by the responsible authority, this publication shall
be referenced in the specification, contract, inspection
instructions, or other documents and the provisions set forth
herein shall govern. The “responsible authority” shall be
designated in one of the above documents, as agreed to by
the purchaser and seller or producer and user.
1.2 APPLICATION. Sampling plans designated in this
publication are applicable, but not limited, to inspection of
the following:
a. End items.
b. Components and raw materials.
c. Operations.
d. Materials in process.
e. Supplies in storage.
f. Maintenance operations.
g. Data or records.
h. Administrative procedures.
These plans are intended primarily to be used for a continuing
series of lots or batches. The plans may also be used for
the inspection of isolated lots or batches, but, in this latter
case, the user is cautioned to consult the operating characteristic
curves to find a plan which will yield the desired protection
(see l l .6).
1.3 INSPECTION. Inspection is the process of measuring,
examining, testing, or otherwise comparing the unit of
product (see 1.5) with the requirements.
the number of nonconformities in the unit of products is
counted, with respect to a given requirement or set of
requirements.
1.5 UNIT OF PRODUCT. The unit of product is the unit
inspected in order to determine its classification as conforming
or nonconforming or to count the number of nonconformities.
It may be a single article, a pair, a set, a length,
an area, an operation, a volume, a component of an end
product, or the end product itself. The unit of product may
or may not be the same as the unit of purchase, supply, production,
or shipment.
2. DEFINITIONS AND TERMINOLOGY
The definitions and terminology employed in this standard
are in accord with ANSUASQ A3534-2-1993 (Terms,
Symbols, and Definitions for Acceptance Sampling). The
following two definitions are particularly important in
applying the standard.
DEFECT: A departure of a quality characteristic from
its intended level or state that occurs with a severity
sufficient to cause an associated product or
service not to satis6 intended normal, or foreseeable,
usage requirements.
NONCONFORMITY A departure of a quality characteristic
from its intended level or state that occurs
with severity sufficient to cause an associated
product or service not to meet a specification
requirement.
These acceptance sampling plans for attributes are given in
terms of the percent or proportion of product in a lot or batch
that depart from some requirement. The general terminology
used within the document will be given in terms of percent
of nonconforming units or number of nonconformities,
since these terms are likely to constitute the most widely
used criteria for acceptance sampling.
In the use of this standard it is helpful to distinguish
between:
1.4 INSPECTION BY ATTRIBUTES. Inspection by a. an individual sampling plan-a specific plan that
attributes is inspection whereby either the unit of product states the sample size or sizes to be used, and the
is classified simply as conforming or nonconforming, or associated acceptance criteria.