ASTM A987/A987M-09
(Practice)Standard Practice for Measuring Shape Characteristics of Tin Mill Products
Standard Practice for Measuring Shape Characteristics of Tin Mill Products
SIGNIFICANCE AND USE
The definitions and procedures for measuring shape characteristics of tin mill products are provided so that purchasers and suppliers have common measuring procedures and definitions of shape characteristics. These procedures provide definitions and measuring techniques of shape characteristics. The intention of these definitions and measuring practices is not to provide a dimensional specification for shape characteristics, but rather common procedure(s) for quantifying shape anomalies.
SCOPE
1.1 Shape is a significant quality characteristic for tin mill products. Plate-shape is affected by mill process factors plus the temper, thickness and width of the material supplied. It is the purpose of this practice to define accurately the different plate shape characteristics and to describe the practice(s) most commonly used to measure particular characteristics.
1.2 Quantitative limits are not addressed and should be established on an individual producer and user basis, where appropriate.
1.3 The values stated in either in-pound or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
1.4 This standard does not purport to address 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 to determine the applicability of regulatory limitations prior to use.
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Designation: A987/A987M − 09
StandardPractice for
1
Measuring Shape Characteristics of Tin Mill Products
This standard is issued under the fixed designationA987/A987M; 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* A626/A626M Specification for Tin Mill Products, Electro-
lytic Tin Plate, Double Reduced
1.1 Shape is a significant quality characteristic for tin mill
A650/A650M Specification for Tin Mill Products, Black
products. Plate-shape is affected by mill process factors plus
Plate, Double Reduced
the temper, thickness and width of the material supplied. It is
A657/A657M Specification for Tin Mill Products, Black
the purpose of this practice to define accurately the different
Plate Electrolytic Chromium-Coated, Single and Double
plate shape characteristics and to describe the practice(s) most
Reduced
commonly used to measure particular characteristics.
1.2 Quantitative limits are not addressed and should be
3. Classification
established on an individual producer and user basis, where
appropriate. 3.1 The substrate shall conform to all the requirements of
the appropriate specifications as follows: Specifications A623,
1.3 The values stated in either in-pound or SI units are to be
A623M, A599/A599M, A624/A624M, A625/A625M, A626/
regarded as standard. Within the text, the SI units are shown in
A626M, A650/A650M, and A657/A657M.
brackets. The values stated in each system must be used
independently of the other. Combining values from the two
4. Significance and Use
systems may result in nonconformance with this specification.
4.1 The definitions and procedures for measuring shape
1.4 This standard does not purport to address the safety
characteristics of tin mill products are provided so that pur-
concerns, if any, associated with its use. It is the responsibility
chasers and suppliers have common measuring procedures and
of the user of this standard to establish appropriate safety and
definitions of shape characteristics. These procedures provide
health practices and to determine the applicability of regula-
definitions and measuring techniques of shape characteristics.
tory limitations prior to use.
The intention of these definitions and measuring practices is
2. Referenced Documents
not to provide a dimensional specification for shape
2
characteristics, but rather common procedure(s) for quantify-
2.1 ASTM Standards:
ing shape anomalies.
A599/A599M Specification for Tin Mill Products, Electro-
lytic Tin-Coated, Cold-Rolled Sheet
5. Interferences
A623 Specification for Tin Mill Products, General Require-
ments
5.1 Measurementofshapeoftenhasbeensubjective,atbest.
A623M Specification for Tin Mill Products, General Re-
Successful measurement of various shape anomalies on quan-
quirements [Metric]
titative terms requires recognition of several factors that can
A624/A624M Specification for Tin Mill Products, Electro-
interfere with accurate measurements.
lytic Tin Plate, Single Reduced
5.1.1 Flat surfaces are required. Measurement of several
A625/A625M Specification for Tin Mill Products, Black
anomalies require laying of the sample on a flat surface. A
Plate, Single-Reduced
machined flat surface is recommended. Laying a sample on a
floor may introduce error due to areas on a floor that are not
flat.
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
5.1.2 Several anomalies are measured by hanging the sheet.
A01.20 on Tin Mill Products.
Hanging by holding the sample with a hand can introduce error
Current edition approved May 1, 2009. Published June 2009. Originally
from pressures exerted by fingers. A mechanical single device
approved in 1998. Last previous edition approved in 2007 as A987 - 07. DOI:
10.1520/A0987_A0987M-09. clamp to help hold these samples is recommended.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.3 Stepblock gauges or tapered gauges should be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
checked regularly with a calibrated hand micrometer. Wear or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. dirt build up could affect accuracy.
*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
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A987/A987M − 09
5.1.4 Computer-basedshapemeasuringinstrumentsmustbe 7.2.1 Definition—These buckles are continuous dev
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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:A987–07 Designation:A987/A987M–09
Standard Practice for
1
Measuring Shape Characteristics of Tin Mill Products
This standard is issued under the fixed designationA 987/A 987M; 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 Shape is a significant quality characteristic for tin mill products. Plate-shape is affected by mill process factors plus the
temper, thickness and width of the material supplied. It is the purpose of this practice to define accurately the different plate shape
characteristics and to describe the practice(s) most commonly used to measure particular characteristics.
1.2 Quantitative limits are not addressed and should be established on an individual producer and user basis, where appropriate.
1.3
1.3 The values stated in either in-pound or SI units are to be regarded as standard. Within the text, the SI units are shown in
brackets. The values stated in each system must be used independently of the other. Combining values from the two systems may
result in nonconformance with this specification.
1.4 This standard does not purport to address 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 to determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A 599/A 599M Specification for Tin Mill Products, Electrolytic Tin-Coated, Cold-Rolled Sheet
A 623 Specification for Tin Mill Products, General Requirements
A 623M Specification for Tin Mill Products, General Requirements [Metric]
A 624/A 624M Specification for Tin Mill Products, Electrolytic Tin Plate, Single Reduced
A 625/A 625M Specification for Tin Mill Products, Black Plate, Single-Reduced
A 626/A 626M Specification for Tin Mill Products, Electrolytic Tin Plate, Double Reduced
A 650/A 650M Specification for Tin Mill Products, Black Plate, Double Reduced
A 657/A 657M Specification for Tin Mill Products, Black Plate Electrolytic Chromium-Coated, Single and Double Reduced
3. Classification
3.1 The substrate shall conform to all the requirements of the appropriate specifications as follows: Specifications A 623,
A 623M, A 599/A 599M, A 624/A 624M, A 625/A 625M, A 626/A 626M, A 650/A 650M, and A 657.
4. Significance and Use
4.1 The definitions and procedures for measuring shape characteristics of tin mill products are provided so that purchasers and
suppliers have common measuring procedures and definitions of shape characteristics. These procedures provide definitions and
measuring techniques of shape characteristics. The intention of these definitions and measuring practices is not to provide a
dimensional specification for shape characteristics, but rather common procedure(s) for quantifying shape anomalies.
5. Interferences
5.1 Measurement of shape often has been subjective, at best. Successful measurement of various shape anomalies on
quantitative terms requires recognition of several factors that can interfere with accurate measurements.
5.1.1 Flat surfaces are required. Measurement of several anomalies require laying of the sample on a flat surface. A machined
flat surface is recommended. Laying a sample on a floor may introduce error due to areas on a floor that are not flat.
5.1.2 Several anomalies are measured by hanging the sheet. Hanging by holding the sample with a hand can introduce error
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.20
on Tin Mill Products.
Current edition approved Nov.May 1, 2007.2009. Published December 2007.June 2009. Originally approved in 1998. Last previous edition approved in 20052007 as
A 987 - 057.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*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 ----------------------
A987/A987M–09
from pressures exerted by fingers. A mechanical sin
...
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