ASTM D3521-86(1997)
(Test Method)Standard Test Method for Surface Wax Coating On Corrugated Board
Standard Test Method for Surface Wax Coating On Corrugated Board
SCOPE
1.1 This test method covers determination of the weight of wax that is present as a coating on the surface of corrugated board. This method is applicable to board to which wax has been applied by curtain coating, roll coating, or other methods; the substrate board may or may not contain impregnating (saturating) wax within its structure. Note 1-If it is known that the specimen has coating wax only, with no internal saturating wax, the total coating wax applied may be determined by Test Method D3344.
1.2 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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact
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Designation: D 3521 – 86 (Reapproved 1997) An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Surface Wax Coating On Corrugated Board
This standard is issued under the fixed designation D 3521; 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 5. Significance and Use
1.1 This test method covers determination of the weight of 5.1 Wax coatings are applied to corrugated board to provide
wax that is present as a coating on the surface of corrugated a better barrier against moisture or other agents or to provide
board. This method is applicable to board to which wax has improved appearance or abrasion resistance. These perfor-
been applied by curtain coating, roll coating, or other methods; mance features are influenced by the amount of wax present on
the substrate board may or may not contain impregnating the surface.
(saturating) wax within its structure. 5.2 During most coating operations, the major portion of the
wax applied will congeal on the surface, while a minor
NOTE 1—If it is known that the specimen has coating wax only, with no
proportion will migrate into and become embedded in the
internal saturating wax, the total coating wax applied may be determined
fibers of the facing. This method measures only the portion on
by Test Method D 3344.
the surface.
1.2 This standard does not purport to address all of the
6. Apparatus
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6.1 Sample-Trimming Equipment—A suitable trimming
priate safety and health practices and determine the applica-
board or template arrangement equipped with a razor edge
bility of regulatory limitations prior to use.
knife for even cutting of specimens to required size, with
parallel sides. (A guillotine-type paper cutter is not recom-
2. Referenced Documents
mended.)
2.1 ASTM Standards:
6.2 Measuring Rule, steel edged, for measuring the size of
D 585 Practice for Sampling and Accepting a Single Lot of
specimen to within 0.5 mm.
Paper, Paperboard, Fiberboard, or Related Product
6.3 Razor Blades, common single-edge, having a rigid rim
D 3344 Test Method for Total Wax Content of Corrugated
for holding in the fingers. The blade is used for surface wax
Paperboard
scraping and an adequate supply of fresh blades with sharp
edges is required.
3. Terminology
6.4 Analytical Balance, reading to nearest 1 mg.
3.1 Definition:
7. Sampling and Test Specimen
3.1.1 weight of wax coating—the weight of wax present as
7.1 From each test unit, obtained in accordance with Prac-
a surface film on corrugated paperboard, expressed as weight
tice D 585, that is, each finished carton blank or paperboard
per unit area, usually grams per square metre or pounds of
sheet, cut specimens free from obvious defects. Each specimen
coating per thousand feet of board covered.
should measure 100 by 100 mm, cut to the nearest 0.5 mm.
3.1.1.1 Discussion—This definition excludes any portion of
Record the area of the surface to be tested, and whether it is an
wax that is located below the surface, that may have been
inside or outside facing. Duplicate specimens are required from
permitted to soak into the fibrous paperboard structure.
each sample unit.
4. Summary of Test Method
NOTE 2—The operator may be required to increase the replication and
4.1 The amount of wax present as a coating on the surface
treatment of specimens to obtain a better estimate of “average” wax
is determined by delaminating the coated facing to obtain a
loading, (1) if the waxing is at an extremely low level, or (2) if the wax
loading shows obvious wide variations in distribution over the board area.
ripple-free sheet, then scraping off the wax using a razor blade
NOTE 3—Optionally, specimens of other dimensions may be used if
and calculating the wax removed.
required by sampling limitations. In such cases, calculations need to be
appropriately adjusted.
This test method is under the jurisdiction of ASTM Committee D-2 on 7.2 Condition all boards at 23°C (73°F) and 50 % relative
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
humidity for a minimum of 48 h before beginning test
D02.10.0Aon Physical and Chemical Properties.
procedure.
Current edition approved Oct. 31, 1986. Published December 1986. Originally
e1
published as D 3521 – 76. Last previous edition D 3521 – 75 (1981) .
8. Procedure
Annual Book of ASTM Standards, Vol 15.09.
Annual Book of ASTM Standards, Vol 05.02. 8.1 Take each duplicate specimen and separate the coated
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D 3521
c 2 d
facing from the combined board as follows:
a 5 (1)
b
8.1.1 Delaminate the fibers of the facing in a manner that
causes minimum disturbance of the surface coating
...
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