Astm D 3521 – 86 (Reapproved 2002) pdf free download

Standard Test Method for
Surface Wax Coating On Corrugated Board1

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

1.1 This test method covers the determination of the weight of
wax that is present as a coating on the surface of corrugated
board. This method is applicable to boards 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 D 3344.

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.

2. Referenced Documents

2.1 ASTM Standards:
D 585 Practice for Sampling and Accepting a Single Lot of
Paper, Paperboard, Fiberboard, or Related Product2
D 3344 Test Method for Total Wax Content of Corrugated
Paperboard3

3. Terminology

3.1 Definition:

3.1.1 weight of wax coating—the weight of wax present as
a surface film on corrugated paperboard, expressed as weight
per unit area, usually grams per square metre or pounds of
coating per thousand feet of board covered.

3.1.1.1 Discussion—This definition excludes any portion of
wax that is located below the surface, that may have been
permitted to soak into the fibrous paperboard structure.

4. Summary of Test Method

4.1 The amount of wax present as a coating on the surface
is determined by delaminating the coated facing to obtain a

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