ASTM B479-00
(Specification)Standard Specification for Annealed Aluminum and Aluminum-Alloy Foil for Flexible Barrier, Food Contact, and Other Applications
Standard Specification for Annealed Aluminum and Aluminum-Alloy Foil for Flexible Barrier, Food Contact, and Other Applications
SCOPE
1.1 This specification covers annealed aluminum and aluminum-alloy foil containing 98.00% minimum aluminum and in thicknesses 0.00025 in. (0.0064 mm) through 0.0015 in. (0.038 mm). Alloys (see Note 1) covered by this specification include, but are not limited to 1100, 1145, 1235, 8079 and 8111, which conform to the requirements of 6.1 and Table 1. Unless otherwise specified by the purchaser, the alloy to be supplied shall be left to the discretion of the producer.
1.2 The foil is for use in packaging or other applications requiring flexible barrier materials, and may be used as supplied or it may be subsequently coated or laminated to other materials such as paper or plastics.
1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.
1.4 The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are for information only.
1.5 The following precautionary caveat pertains only to the test method portion of this specification: 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. Note 1-Throughout this specification, use of the term alloy in the general sense includes aluminum as well as aluminum alloy. Note 2-If the alloy is specified by the purchaser, its designation shall be in accordance with ANSI H35.1. The equivalent Unified Numbering System alloy designations are those shown in Section 1.1 preceded by A9, for example, A91100 for aluminum 1100 in accordance with Practice E527.
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Designation: B 479 – 00
Standard Specification for
Annealed Aluminum and Aluminum-Alloy Foil for Flexible
Barrier, Food Contact, and Other Applications
This standard is issued under the fixed designation B 479; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
1.1 This specification covers annealed aluminum and 2.1 The following documents of the date of issue in effect
aluminum-alloy foil containing 98.00 % minimum aluminum on date of material procurement form a part of this specifica-
and in thicknesses 0.00025 in. (0.0064 mm) to, but not tion to the extent referenced herein.
including, 0.006 in. (0.15 mm).Alloys (see Note 1) covered by 2.2 ASTM Standards:
this specification include, but are not limited to 1100, 1145, B 660 Practices for Packaging/Packing of Aluminum and
1235, 8079, and 8111, which conform to the requirements of Magnesium Products
6.1 and Table 1. Unless otherwise specified by the purchaser, E 29 Practice for Using Significant Digits in Test Data to
the alloy to be supplied shall be left to the discretion of the Determine Conformance with Specifications
producer. E 34 Test Methods for ChemicalAnalysis ofAluminum and
1.2 The foil is for use in packaging, which includes food Aluminum Base Alloys
handling and processing applications, requiring flexible barrier E 55 PracticeforSamplingWroughtNonferrousMetalsand
materials, and other general applications. The foil may be used Alloys for Determination of Chemical Compo sition
as supplied or laminated to other materials, such as paper or E 96 Test Methods for Water Vapor Transmission of Mate-
plastic films. rials
1.3 For acceptance criteria for inclusion of new aluminum E 227 Test Method for Optical Emission Spectrometric
and aluminum alloys in this specification, see Annex A1. Analysis of Aluminum and Aluminum Alloys by the
1.4 The values stated in inch-pound units are to be regarded Point-to-Plane Technique
as the standard. The SI values in parentheses are for informa- E 252 Test Method for Thickness of Thin Foil and Film by
tion only. Weighing
1.5 The following precautionary caveat pertains only to the E 345 Test Methods of Tension Testing of Metallic Foil
test method portion of this specification: This standard does E 607 Test Method for Optical Emission Spectrometric
not purport to address all of the safety concerns, if any, Analysis of Aluminum and Aluminum Alloys by the
associated with its use. It is the responsibility of the user of this Point-to-Plane Technique, Nitrogen Atmosphere
standard to establish appropriate safety and health practices E 716 Practices for Sampling of Aluminum and Aluminum
and determine the applicability of regulatory limitations prior Alloys for Spectrochemical Analysis
to use. E 1251 Test Method for Optical Emission Spectrometric
Analysis ofAluminum andAluminumAlloys by theArgon
NOTE 1—Throughout this specification, use of the term alloy in the
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
general sense includes aluminum as well as aluminum alloy.
pacitor Discharge
NOTE 2—If the alloy is specified by the purchaser, its designation shall
2.3 American National Standard:
be in accordance with ANSI H35.1. The equivalent Unified Numbering
System alloy designations are those shown in Section 1.1 preceded byA9,
for example, A91100 for aluminum 1100 in accordance with Practice
E 527.
Annual Book of ASTM Standards, Vol 02.02.
1 3
This specification is under the jurisdiction of ASTM Committee B07 on Light Annual Book of ASTM Standards, Vol 14.02.
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on Annual Book of ASTM Standards, Vol 03.05.
Aluminum Alloy Wrought Products. Annual Book of ASTM Standards, Vol 03.06.
Current edition approved May 10, 2000. Published August 2000. Originally Annual Book of ASTM Standards, Vol 04.06.
published as B 479–69T. Last previous edition B 479–97. Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 479
A,B,C
TABLE 1 Chemical Composition Limits
4. Ordering Information
Si + Fe 1.8 Ti 0.08
4.1 Orders for material to this specification shall include the
D E,F
Cu 0.20 Others—each 0.05
D following information:
Mn 0.10 Others—total 0.15
G
Mg 0.05 Al, min. 98.00
4.1.1 This specification designation (which includes the
Zn 0.10
number, the year, and the revision letter, if applicable),
A
Limits are in percent maximum unless otherwise noted.
4.1.2 Quantity in pieces or lbs (kg),
B
Analysis shall be made for the elements for which limits are shown in this table.
4.1.3 Nominal thickness and (a) sheet size, or (b) maximum
C
For purposes of determining conformance to these limits, an observed value
or a calculated value obtained from analysis shall be rounded to the nearest unit roll diameter, nominal roll width, and core size (Section 9),
in the last right-hand place or figures used in expressing the specified limit, in
4.1.4 Surface condition (see 3.1.2 and 3.1.3),
accordance with the rounding method of Practice E 29.
D 4.1.5 Type of splice (for rolls only), (see 10.2),
Others includes all unlisted metallic elements. The producer may analyze
samples for trace elements not specified in the specification. However, such 4.2 Additionally, orders for material to this specification
analysis is not required and may not cover all metallic Others elements. Should
shall include the following information when required by the
any analysis by the producer or the purchaser establish that an Others element
purchaser:
exceeds the limit of Each or that the aggregate of several Others elements
exceeds the limit of Total, the material shall be considered non-conforming.
4.2.1 Whether supply of a specific alloy is required (see
E
For food applications, lead, arsenic, and cadmium shall be less than 0.01 %
1.1),
each. For purposes of determining conformance to the limits of these three
4.2.2 Whether inspection or witness of inspection and tests
elements, an observed value or a calculated value obtained from analysis shall be
considered significant, in accordance with the absolute method of Practice E 29.
by the purchaser’s representative is required prior to shipment
F
Food packaging, in accordance with CONEG Model Legislation, shall have a
(see 11.1),
maximum total of less than 100 ppm for the combined total of lead, mercury,
tb
4.2.3 Whether the intended use involves food processing,
cadmium, and hexavalent-chrome (Pb, Hg, Cd, and Cr ).
G
The aluminum content shall be calculated by subtracting from 100.00 % the
food packaging, or food preservation (see 6.1 and 15.2), and if
sum of all metallic elements present in amounts of 0.010 % or more each, rounded
so, what government regulations are applicable.
to the nearest 0.01 % prior to determining the sum.
4.2.4 Whether certification is required (Section 13).
4.2.5 Whether Mullen test is required (see Section 11).
4.2.6 Whether special statistical methods are to be used for
H35.1 Alloy and Temper Designation Systems for Wrought
visualanddimensionalinspection.Ifso,thesemethodsshallbe
Aluminum
listed.
Z1.4 Sampling Procedures and Tables for Inspection by
Attributes
5. Responsibility for Quality Assurance
5.1 Responsibility for Inspection and Tests—Unless other-
3. Terminology
wise specified in the contract or purchase order, the producer is
3.1 Definitions:
responsible for the performance of all inspection and test
3.1.1 foil—a rolled product rectangular in cross section of
requirements specified herein. Except as otherwise specified in
thickness less than 0.006 in. (0.15 mm).
the contract or order, the producer may use his own or any
3.1.2 matte one-side foil (MIS)—foil with a diffuse reflect-
other suitable facilities for the performance of the inspection
ingfinish(matte)ononesideandabrightspecularfinishonthe
and test requirements specified herein, unless disapproved by
other side.
the purchaser at the time the order is placed. The purchaser
3.1.3 bright two-sides foil (B2S)—foil having a uniform
shall have the right to perform any of the inspections and tests
bright specular finish on both sides.
set forth in this specification where such inspections are
3.1.4 dry annealed, A—having a test dryness 100/0,
deemed necessary to assure that the material conforms to
free from residual rolling oil as determined by the water
prescribed requirements.
test.
3.1.5 dry annealed, B—having a test dryness 90/10, having
6. Chemical Composition
a slight film of residual rolling oil as determined by the
6.1 Limits—The foil shall conform to the chemical compo-
water-alcohol test.
sition limits in Table 1. For applications involving food
3.1.6 dry annealed, C—having a test dryness 80/20, having
packaging, handling, or preservation the absolute amounts of
a slight film of residual rolling oil as determined by the
lead, arsenic, and cadmium shall be less than 0.01 % each (see
water-alcohol test.
footnote E of Table 1). The producer shall determine conform-
3.1.7 slick annealed—having a uniform film of residual
ance by analyzing samples taken when the ingots are poured,
rolling or applied oil as determined by the drop of water test.
or when continuous sheet or plate is cast, or by analyzing
3.2 Definitions of Terms Specific to This Standard:
samples taken from the finished or semifinished product. If the
3.2.1 capable of—The term capable of as used in this
producer has determined the chemical composition during the
specification means that the test need not be performed by the
course of manufacture, he shall not be required to sample and
producer of the material. However, should subsequent testing
analyze the finished product.
by the purchaser establish that the material does not meet these
NOTE 3—It is standard practice in the United States aluminum industry
requirements, the material shall be subject to rejection.
to determine conformance to the chemical composition limits prior to
further processing of ingots or continuously cast plate or sheet into
wrought products. Due to the continuous nature of the process, it is not
practicaltokeepaspecificingotanalysisidentifiedwithaspecificquantity
Available from American National Standards Institute, 11 W. 42nd St., 13th
Floor, New York, NY 10036. of finished material.
B 479
quality foil is capable of meeting.
6.2 Number of Samples—The number of samples taken for
determination of chemical composition shall be as follows:
7.2 Number of Tests—When the tensile breaking load is to
6.2.1 When samples are taken at the time the ingots are
be determined not less than two samples shall be selected from
poured, at least one sample shall be taken for each group of
a shipment with each sample from a different roll of foil.
ingots poured simultaneously from the same source of molten
7.3 Test Specimens—All the test specimens shall be taken
metal.
parallel to the direction of rolling and they shall be in
6.2.2 When samples are taken at the time a coil is cast, at
accordance with Type A or Type B specimens as covered by
leastonesampleshallbetakenforeachcoilcastfromthesame
Test Methods E 345.
source of molten metal.
7.4 Test Method—The tensile breaking load tests shall be
6.2.3 When samples are taken from the finished or semifin-
made in accordance with Test Methods E 345.
ished product, a sample shall be taken to represent each 4000
lb (1814 kg), or fraction thereof, in the shipment. 8. Covering Area
6.3 Methods of Sampling—Samples for determination of
8.1 Limits—The covering area per pound shall be in accor-
chemical composition shall be taken in accordance with one of
dance with the limits in Table 3.
the following methods:
8.2 Number of Tests—Specimens consisting of at least 16
6.3.1 Samples for chemical analysis shall be taken from the 2 2
in. (103cm )ofunsplicedfoilshallbetakentorepresenteach
material by clipping a representative piece or pieces to obtain
1000 lb (454 kg) or fraction thereof in a shipment. Not less
a prepared sample of not less than 75 g. Sampling shall be in
than two specimens shall be taken when the shipment consists
accordance with Practice E 55.
of more than one roll, or 50 sheets.
6.3.2 Sampling for spectrochemical analysis shall be in
8.3 Test Methods—The covering area per pound shall be
accordancewithPracticesE 716.Samplesforothermethodsof
determined in accordance with Test Method E 252. The cov-
analysis shall be taken by means suitable for the form of
eringareamayalsobedeterminedbymeansofadirect-reading
material being analyzed and the type of analytical method
basis-weight scale, but in case of dispute, the covering area
used.
shall be determined by weighing to the nearest 1 mg a piece of
6.4 Methods of Analysis—The determination of chemical
unspliced foil not less than 10 ft (3 m) long and calculating the
composition shall be made in accordance with suitable chemi-
average area per pound by use of the following equation:
cal (Test Methods E 34), or spectrochemical (Test Method
Covering area, in. /lb (1)
E 227, E 607, and E 1251), methods. Other methods may be
used only when no published ASTM method is available. In
5 453.6 3 area of sample ~in. !/weight of sample ~g!
case of dispute, the methods of analysis shall be agreed
between the producer and purchaser.
NOTE 5—The covering area in Table 3 is based on a nominal density of
3 3
0.0975 lb/in. (2.700 g/cm ) for a composition containing 99.35 % or
7. Tensile Properties
greater aluminum. For a composition having less than 99.35 % aluminum,
3 3
7.1 Limits—The foil shall be capable of conforming to the a nominal density of 0.098 lb/in. (2.71 g/cm ) shall be used and the
covering areas in Table 3 shall be adjusted accordingly.
tensile breaking loads in Table 2. Splices shall be capable of
developing 80 % of the breaking load specified for unspliced
9. Dimensional Tolerances
foil.
9.1 Rolls—Rolls shall be wound on metal cores having an
NOTE 4—Tensile breaking loads define the strength properties good
insidediameterof1 ⁄1660.012in.(33.3 60.3mm),3 60.015
in. (76.2 6 0.4 mm) or 6 6 0.030 in. (152.4 6 0.8 mm), as
TABLE 2 Tensile Breaking Load
specified by the purchaser. For specified foil widths up through
Nominal Thickness Breaking Load
12 in. (305 mm) the dimensional tolerance shall be 6 ⁄64in.
Pounds per (Kilograms per
(0.4 mm), and for widths over 12 in. it shall be 6 ⁄32 in. (0.8
in. (mm) Inch of Width, centimetre of
mm). The maximum outside roll diameter shall be as specified
min Width, min)
by the purch
...
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