ASTM F2250-13

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F2250 − 13
Standard Practice for
Evaluation of Chemical Resistance of Printed Inks and
1
Coatings on Flexible Packaging Materials
This standard is issued under the fixed designation F2250; 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 chemical, it is important that the ink or coating, or both, not
degrade, soften, or dissolve as a result of that contact.
1.1 This practice describes the procedure for evaluating the
ability of an ink, overprint varnish or coating to withstand
3.2 The testing included in this practice is applicable to
chemical exposure. Typical chemicals, which may come in
surface printed and coated materials designed to be resistant to
contact with the package, include water, alcohol, acid, etc. The
a specific chemical.
specific chemical and method of choice as well as determina-
3.3 The chemicals to be tested should be compatible with
tion of measurement outcome are left to users to agree upon in
(that is, not damage or degrade) the substrate being printed or
joint discussion. Suggestions for ways to measure and collect
coated, or both.
information are offered in the various methods listed in this
3.4 Therearefourseparatemethodsdetailedinthispractice.
practice.
The methods represent increasing degrees of severity from
1.2 The values stated in either SI units or inch-pound units
Method A to Method D. Selection of method should be based
are to be regarded separately as standard. The values stated in
on the type of exposure anticipated. For example, the pouring
each system may not be exact equivalents; therefore, each
method(MethodA)istypicallyusedwhereincidentalexposure
system shall be used independently of the other. Combining
is anticipated, such as a spill or splash of chemical on the
values from the two systems may result in non-conformance
material surface. Method B or C is typically used when
with the standard.
chemical resistance is desired depending on the level of
1.3 This standard does not purport to address all of the
exposure (B) and abrasion (C) anticipated. Method D would
safety concerns, if any, associated with its use. It is the
represent continual contact between the chemical and material
responsibility of the user of this standard to establish appro-
and would need to be chemical-proof, (for example, if the
priate safety and health practices and determine the applica-
package were to be submerged in the chemical and exposed to
bility of regulatory limitations prior to use.
abrasion over a period of time.)
3.5 This practice does not address acceptability criteria.
2. Referenced Documents
These need to be jointly determined by the user and producer
2
2.1 ASTM Standards:
of the product, based on the type of exposure that is antici-
E171 Practice for Conditioning and Testing Flexible Barrier
pated.
Packaging
4. Apparatus
3. Significance and Use
4.1 Method A Apparatus:
3.1 Packaging materials may be exposed to chemicals such
4.1.1 Inclined plane capable of holding material at approxi-
as water, alcohol, acid, etc. during their life cycle. If it is
mately a 45-degree angle, allowing chemical to be tested to
anticipated that the packaging material will be exposed to a
flow easily downward.
4.1.2 Small pouring container or syringe of chemical to be
tested.
1
This practice is under the jurisdiction of ASTM Committee F02 on Flexible
Barrier Packaging and is the direct responsibility of Subcommittee F02.20 on 4.2 Method B Apparatus:
Physical Properties.
4.2.1 Watch glass, sized to cover sample to be tested and
Current edition approved May 1, 2013. Published June 2013. Originally
easily handled.
approved in 2003. Last previous edition approved in 2008 as F2250 – 03 (2008).
DOI: 10.1520/F2250-13. 4.2.2 Small pouring container or syringe of chemical to be
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tested.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.3 Timing device.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.2.4 Absorbent material.
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F2250 − 13
exposure or, if ranking materials, then multiple time intervals should be
4.3 Method C Apparatus:
used.
4.3.1 Cotton swab.
4.3.2 Container of chemical to be tested.
7.2.5 When specified time has elapsed, carefully remove
glass and examine sample for any running, smearing or
4.4 Method D Apparatus:
discoloration.
4.4.1 Watch glass, s
...