ASTM B602-88(2010)
(Test Method)Standard Test Method for Attribute Sampling of Metallic and Inorganic Coatings
Standard Test Method for Attribute Sampling of Metallic and Inorganic Coatings
SIGNIFICANCE AND USE
Sampling inspection permits the estimation of the overall quality of a group of product articles through the inspection of a relatively small number of product items drawn from the group.
The selection of a sampling plan provides purchasers and sellers a means of identifying the minimum quality levels that are considered to be satisfactory.
Because sampling plans will only yield estimates of the quality of a product, the results of the inspection are subject to error. Through the use of sampling plans, the risk of error is known and controlled.
SCOPE
1.1 This test method gives sampling plans that are intended for use in the inspection of metallic and inorganic coatings for conformance to ASTM standard specifications.
1.2 The plans in this test method, except as noted, have been selected from some of the single sampling plans of MIL-STD-105D. The specific plans selected are identified in Tables 1-3 of this test method. The plan of Table 4, which is used for destructive testing, is not from the Military Standard. This standard does not contain the Military Standard's requirement for tightened inspection when the quality history of a supplier is unsatisfactory.
1.3 The plans are based on inspection by attributes, that is, an article of product is inspected and is classified as either conforming to a requirement placed on it, or as nonconforming. Sampling plans based on inspection by variables are given in Test Method B762. Variables plans are applicable when a test yields a numerical value for a characteristic, when the specification imposes a numerical limit on the characteristic, and when certain statistical criteria are met. These are explained in Test Method B762.
1.4 The plans in this test method are intended to be generally suitable. There may be instances in which tighter or looser plans or ones that are more discriminating are desired. Additional plans that may serve these needs are given in Guide B697. Also, Guide B697 describes the nature of attribute sampling plans and the several factors that must be considered in the selection of a sampling plan. More information and an even greater selection of plans are given in MIL-STD-105D, MIL-STD-414, ANSI/ASQC Z1.9-1979, Refs (1-7) , and in Guide B697.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: B602 − 88 (Reapproved2010)
Standard Test Method for
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Attribute Sampling of Metallic and Inorganic Coatings
This standard is issued under the fixed designation B602; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 This test method gives sampling plans that are intended
for use in the inspection of metallic and inorganic coatings for
2. Referenced Documents
conformance to ASTM standard specifications.
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2.1 ASTM Standards:
1.2 Theplansinthistestmethod,exceptasnoted,havebeen
B697Guide for Selection of Sampling Plans for Inspection
selected from some of the single sampling plans of MIL-STD-
of Electrodeposited Metallic and Inorganic Coatings
105D.ThespecificplansselectedareidentifiedinTables1-3of
B762Test Method of Variables Sampling of Metallic and
this test method. The plan of Table 4, which is used for
Inorganic Coatings
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destructive testing, is not from the Military Standard. This
2.2 ANSI Standard:
standard does not contain the Military Standard’s requirement
ANSI/ASQC Z1.9-1979Sampling Procedures and Tables
for tightened inspection when the quality history of a supplier
for Inspection byVariables for Percent Non-Conformance
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is unsatisfactory.
2.3 Military Standards:
MIL-STD-105DSampling Procedures and Tables for In-
1.3 The plans are based on inspection by attributes, that is,
spection by Attributes
an article of product is inspected and is classified as either
MIL-STD-414 Sampling Procedures and Tables for Inspec-
conformingtoarequirementplacedonit,orasnonconforming.
tion by Variables for Percent Defective
Sampling plans based on inspection by variables are given in
Test Method B762. Variables plans are applicable when a test
3. Terminology
yields a numerical value for a characteristic, when the speci-
3.1 Definitions:
fication imposes a numerical limit on the characteristic, and
3.1.1 destructive test—test that destroys the tested article or
when certain statistical criteria are met.These are explained in
makes it nonconforming to a requirement.
Test Method B762.
3.1.2 inspection lot—collection of articles of the same kind
1.4 The plans in this test method are intended to be
that is submitted to inspection for acceptance or rejection as a
generally suitable. There may be instances in which tighter or
group.
looser plans or ones that are more discriminating are desired.
AdditionalplansthatmayservetheseneedsaregiveninGuide
3.1.3 nondestructive test—test that neither destroys the
B697. Also, Guide B697 describes the nature of attribute
tested article nor makes it nonconforming to a requirement.
sampling plans and the several factors that must be considered
3.1.4 sample—articles randomly selected from an inspec-
in the selection of a sampling plan. More information and an
tion lot whose quality is used to decide whether or not the
even greater selection of plans are given in MIL-STD-105D,
inspection lot is of acceptable quality.
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MIL-STD-414, ANSI/ASQC Z1.9-1979, Refs (1-7) , and in
Guide B697. 4. Significance and Use
1.5 This standard does not purport to address all of the 4.1 Sampling inspection permits the estimation of the over-
safety concerns, if any, associated with its use. It is the
allqualityofagroupofproductarticlesthroughtheinspection
responsibility of the user of this standard to establish appro- of a relatively small number of product items drawn from the
group.
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ThistestmethodisunderthejurisdictionofASTMCommitteeB08onMetallic For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Inorganic Coatingsand is the direct responsibility of Subcommittee B08.10 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Test Methods. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2010. Published June 2010. Originally the ASTM website.
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approved in 1975. Last previous edition approved in 2005 as B602–88(2005). Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/B0602-88R10. 4th Floor, New York, NY 10036, http://www.ansi.org.
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Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
this standard. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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