ASTM F2217-02

Standard Practice for Coating/Adhesive Weight Determination

SCOPE
1.1 This practice covers a procedure for determining the amount of coating applied to a substrate, (for example, film, paper, nonwoven). The amount of coating is expressed as a weight per given area, (for example, g/m2, lb/ream).
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.

General Information

• Status: Historical
• Publication Date: 09-Dec-2002
• ICS: 25.220.20 - Surface treatment
• Technical Committee: F02 - Primary Barrier Packaging
• Drafting Committee: F02.20 - Physical Properties

Relations

• Replaced By: ASTM F2217-02(2007) - Standard Practice for Coating/Adhesive Weight Determination
• Effective Date: 01-Apr-2007
• Referred By: ASTM F2097-20 - Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
• Effective Date: 10-Dec-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F2217–02
Standard Practice for
Coating/Adhesive Weight Determination
This standard is issued under the fixed designation F 2217; 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 4.2.1 Cut representative samples using a cutting device and
2 2
a template of known unit area “A” mm (in. ), for example,
1.1 This practice covers a procedure for determining the
203.2 by 50.8 mm (8 by 2 in.) template.
amount of coating applied to a substrate, (for example, film,
4.2.2 Weigh each sample on the analytical balance to the
paper, nonwoven). The amount of coating is expressed as a
nearest 0.0001 g and record the value “W .” Samples may be
weight per given area, (for example, g/m , lb/ream).
folded and placed on to the analytical balance.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
NOTE 2—If sample is conditioned weigh immediately.
responsibility of the user of this standard to establish appro-
4.2.3 Using solvent in which the coating is soluble and the
priate safety and health practices and determine the applica-
substrate is insoluble, remove coating from substrate. Typical
bility of regulatory limitations prior to use.
methods are wiping with solvent saturated cloth, immersing
samples in solvent to soften, then wiping with cloth or brush,
2. Referenced Documents
if needed, or immersing sample, agitating to soften, then
2.1 ASTM Standards:
wiping with cloth or brush. For specific recommendations
D 1898 Practice for Sampling of Plastics
contact the coated substrate supplier.
D 4332 Practice for Conditioning Containers, Packages, or
NOTE 3—Accumulated coating in solvent, cloth or brush can reduce the
Packaging Components for Testing
ability to clean sample properly and may affect test results.
3. Terminology
4.2.4 Thoroughly dry the substrate with a drying appliance.
3.1 coating—a material applied to enhance the characteris-
A timer should be used to ensure consistency in immersion,
ticsofthebasesubstrates.Forthispractice,thecoatingmustbe
cleaning and drying time. Drying of hygroscopic materials
soluble in the chosen solvent.
should be consistent with conditioning parameters.
3.2 ream—500 sheets of 609.6 by 914.4 mm (24 by 36 in.)
4.2.5 Re-weigh each sample on the analytical balance to the
2 2
equal to 278.7 m (3000 ft ).
nearest 0.0001 g and record the value “W .”
4.2.6 Calculate and report the adhesive coat weight using
NOTE 1—Other ream sizes may be in use. If using a ream size other
2 2
the following equation:
than278.7m (3000ft ),theconversionfactorK(locatedintheappendix)
must be recalculated if reporting results as lb/ream.
K ~W 2W !
1 2
Adhesive Coat Weight 5 (1)
S D
AP
4. Summary of Practice
4.1 Representative samples of coated material are weighed, where:
W = weight of coated substrate, g,
coating is removed using a solvent appropriate for the coating,
W = weight of uncoated substrate, g,
samples are dried and weighed again. The differential obtained
2 2
A = area of substrate, mm (in. ),
is the coating weight.
P = fraction of substrate that is coated (P = 1 except for
4.2 Typical methodology is as follows:
zone coated materials), and
K = constant (see below).
This practice is under the jurisdiction of ASTM Committee F02 on Flexible 4.2.7 When coat weight is expressed in g/m :
Barrier Materials and is the direct responsibility of Subcommittee F02.20 on
6 2 2
K 5 1 3 10 mm /m (2)
Physical Properties.
Current edition approved Dec. 10, 2002. Published February 2003.
4.2.8 When coat weight is expressed in lb/ream:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in. ·lb
Standards volume information, refer to the standard’s Document Summary page on K 5 952.4 (3)
S D
ream · g
the ASTM website.
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2217–02
NOTE 4—For explanation of how K is determined, see Appendix X1.
7. Hazards
7.1 Solvents may be toxic. When using solvents, work in a
5. Significance and Use
fume hood. Wear gloves when handling. Solvents may be
5.1 Coating weight is an indicator of certain functional
flammable. Do not allow solvent to touch hot surfaces and
characteristics of coated substrates (for example, sealability,
ensure vapors are vented away. See solvent Material Safety
peelability, appearance). The methodology described in this
Data Sheet for additional information.
practice is a means of determining coat weight.
8. Sampling
5.2 This practice does not address
...