ASTM D3636-13
(Practice)Standard Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials
Standard Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials
ABSTRACT
This practice covers procedures for obtaining data on the quality of solid electrical insulating materials and for judging whether the materials meet the requirements specified. This practice, however, is not intended to define internal quality control procedures of the producer; rather, it is designed to determine the acceptability of all, or some portion, of a quantity of electrical insulating materials available for inspection by the user of the material. In addition, this practice is intended for use in conjunction with existing material specifications including property characteristic limits, acceptable quality level, standard test methods, and sampling instructions. Data shall be obtained by taking lot samples randomly. Sampling plans are available in single, double, and multiple types. Acceptable quality levels for each critical, major, and minor property as well as inspection levels shall conform to the requirements specified. Acceptance of lot quality shall be determined based on the comparison of test results and other information obtained using the sampling plans with the requirements set forth in the material specification (nonconformity) and on whether the lot meets the requirements specified.
SCOPE
1.1 This practice covers procedures for obtaining data pertaining to the quality of a lot of electrical insulating material and for making a judgement whether the lot meets the requirements of a material specification.
1.2 This practice is not intended to define a producer's internal quality control procedures but is designed to determine the acceptability of all, or some portion, of a quantity of electrical insulating material that is available for inspection by the user of the material.
1.3 This practice is intended to be used in conjunction with an existing material specification that specifies property characteristic limits, acceptable quality level (AQL), standard test methods, and specific sampling instructions.
1.4 In the absence of a specification as described in 1.3, use this practice as a guide, after establishment of agreed-upon property characteristics, limits, AQL, standard test methods, and specific sampling instructions.
1.5 It is intended that this be a practice for inspection by attributes.
1.6 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: D3636 − 13 An American National Standard
Standard Practice for
Sampling and Judging Quality of Solid Electrical Insulating
1
Materials
This standard is issued under the fixed designation D3636; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2.2 Military Standard:
MIL-STD-105D Sampling Procedures and Tables for In-
1.1 This practice covers procedures for obtaining data
3
spection by Attributes
pertainingtothequalityofalotofelectricalinsulatingmaterial
2.3 Other Document:
and for making a judgement whether the lot meets the
4
ANSI/ASQC A2 -1987
requirements of a material specification.
3. Terminology
1.2 This practice is not intended to define a producer’s
internalqualitycontrolproceduresbutisdesignedtodetermine
3.1 Definitions:
the acceptability of all, or some portion, of a quantity of
3.1.1 acceptance number, n—the maximum allowable num-
electrical insulating material that is available for inspection by
ber of nonconformities for a given AQL and sample size
the user of the material.
(lot-sample size).
3.1.2 acceptable quality level (AQL), n— the maximum
1.3 This practice is intended to be used in conjunction with
percent nonconforming which, for purposes of sampling
an existing material specification that specifies property char-
inspection, is considered satisfactory as a process average.
acteristic limits, acceptable quality level (AQL), standard test
methods, and specific sampling instructions.
3.1.3 critical property, n—a quantitatively measurable char-
acteristic which is absolutely necessary to be met if a material
1.4 In the absence of a specification as described in 1.3, use
or product is to provide satisfactory performance for the
this practice as a guide, after establishment of agreed-upon
intended use.
property characteristics, limits, AQL, standard test methods,
3.1.3.1 Discussion—In some situations, specification re-
and specific sampling instructions.
quirements coincide with customer usage requirements. In
1.5 It is intended that this be a practice for inspection by
other situations, they may not coincide, being either more or
attributes.
less stringent. More stringent sampling (for example, smaller
AQLvalues)isusuallyusedformeasurementofcharacteristics
1.6 This standard does not purport to address all of the
which are considered critical. The selection of sampling plans
safety concerns, if any, associated with its use. It is the
is independent of whether the term defect or nonconformity is
responsibility of the user of this standard to establish appro-
appropriate.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 3.1.4 defect, n—a departure of a quality characteristic from
its intended level, or state, that occurs with a severity sufficient
tocauseanassociatedproductorservicenottosatisfyintended
2. Referenced Documents
normal, or reasonably foreseeable, usage requirements.
2
2.1 ASTM Standards:
3.1.4.1 Discussion—The terms defect and nonconformity
E300 Practice for Sampling Industrial Chemicals
and their derivatives are used somewhat interchangeably in the
historical and current literature. Nonconformity objectively
describes the comparison of test results to specification
1
This practice is under the jurisdiction of ASTM Committee D09 on Electrical
requirements, while the term defect has a connotation of
and Electronic Insulating Materials and is the direct responsibility of Subcommittee
predicting the failure of a product or service to perform its
D09.94 on Editorial.
intended function in use. Since this latter connotation is often
Current edition approved January 1, 2013. Published May 2013. Originally
approved in 1977. Last previous edition approved in 2011 as D3636 – 11. DOI:
10.1520/D3636-13.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3636 − 13
unintended, the term nonconformity is preferred in full consen- 3.1.13 percent nonconf
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3636 − 13 D3636 − 13 An American National Standard
Standard Practice for
Sampling and Judging Quality of Solid Electrical Insulating
1
Materials
This standard is issued under the fixed designation D3636; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This practice covers procedures for obtaining data pertaining to the quality of a lot of electrical insulating material and for
making a judgement whether the lot meets the requirements of a material specification.
1.2 This practice is not intended to define a producer’s internal quality control procedures but is designed to determine the
acceptability of all, or some portion, of a quantity of electrical insulating material that is available for inspection by the user of
the material.
1.3 This practice is intended to be used in conjunction with an existing material specification that specifies property
characteristic limits, acceptable quality level (AQL), standard test methods, and specific sampling instructions.
1.4 In the absence of a specification as described in 1.3, use this practice as a guide, after establishment of agreed-upon property
characteristics, limits, AQL, standard test methods, and specific sampling instructions.
1.5 It is intended that this be a practice for inspection by attributes.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E300 Practice for Sampling Industrial Chemicals
2.2 Military Standard:
3
MIL-STD-105D Sampling Procedures and Tables for Inspection by Attributes
2.3 Other Document:
4
ANSI/ASQC A2 -1987
3. Terminology
3.1 Definitions:
3.1.1 acceptance number, n—the maximum allowable number of nonconformities for a given AQL and sample size (lot-sample
size).
3.1.2 acceptable quality level (AQL), n— the maximum percent nonconforming which, for purposes of sampling inspection, is
considered satisfactory as a process average.
3.1.3 critical property, n—a quantitatively measurable characteristic which is absolutely necessary to be met if a material or
product is to provide satisfactory performance for the intended use.
1
This practice is under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and is the direct responsibility of Subcommittee D09.94
on Editorial.
Current edition approved January 1, 2013. Published May 2013. Originally approved in 1977. Last previous edition approved in 2011 as D3636 – 11. DOI:
10.1520/D3636-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
3.1.3.1 Discussion—
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3636 − 13
In some situations, specification requirements coincide with customer usage requirements. In other situations, they may not
coincide, being either more or less stringent. More stringent sampling (for example, smaller AQL values) is usually used for
measurement of characteristics which are considered critical. The selection of sampling plans is independent of whether the term
defect or nonconformity is appropriate.
3.1.4 defect, n—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 satisfy intended normal, or reasonably foreseeable, usage requirements.
3.1.4.1 Discussion—
The terms defect and nonconformity and their derivatives are used somewhat interchangeably in the historical and current literature.
Nonconformity objectively desc
...
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