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ASTM D2338-02(2007)

(Test Method)

Standard Test Method for Determining Particle Size of Multicolor Lacquers

Standard Test Method for Determining Particle Size of Multicolor Lacquers

SIGNIFICANCE AND USE
This test method provides a uniform nomenclature for the producer and user in the identification of the various particle sizes used in the manufacture of nitrocellulose-type multicolor lacquers.
SCOPE
1.1 This test method employs photographic reference standards to evaluate the particle size of multicolor lacquers.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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
31-May-2007
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.55 - Factory Applied Coatings on Preformed Products
Current Stage
Ref Project

Relations

Replaces
ASTM D2338-02 - Standard Test Method for Determining Particle Size of Multicolor Lacquers
Effective Date
01-Jun-2007

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ASTM D2338-02(2007) - Standard Test Method for Determining Particle Size of Multicolor LacquersASTM D2338-02(2007) - Standard Test Method for Determining Particle Size of Multicolor Lacquers
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ASTM D2338-02(2007) - Standard Test Method for Determining Particle Size of Multicolor Lacquers
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2338 − 02 (Reapproved2007)
Standard Test Method for
Determining Particle Size of Multicolor Lacquers
This standard is issued under the fixed designation D2338; 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 5. Reference Standards
1.1 This test method employs photographic reference stan- 5.1 The photographic reference standards were prepared by
dards to evaluate the particle size of multicolor lacquers. photographing actual sprayed panels of multicolor lacquers
that were made in the five particle sizes normally used in
1.2 The values stated in SI units are to be regarded as
commercial multicolor lacquers. The standard designations are
standard. The values given in parentheses are for information
as follows (Fig. 1(a), 1(b), 1(c)): fine, small, medium, large,
only.
and extra large, and represent the correct nomenclature for
1.3 This standard does not purport to address all of the
properly applied multicolor lacquer.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Apparatus
priate safety and health practices and determine the applica-
6.1 Spray Gun, pressure-feed internal-mix type, tip 2.2 mm
bility of regulatory limitations prior to use.
(0.086 in.) in diameter with wide-spray nozzle.
2. Referenced Documents
7. Procedure
2.1 ASTM Adjuncts:
NOTE 1—The particle size of multicolor lacquer is dependent upon the
Grain Sizes (5 photos)
spray conditions during the application procedure. In order to get uniform
results the exact spray conditions should be agreed upon between the
3. Summary of Test Method
purchaser and the seller.
3.1 The samples to be tested are mixed by pouring from one
7.1 Spray the lacquer on a coated white paper panel with the
container to another until they are uniform in consistency
fluid and atomizing pressures adjusted to give a spreading rate
2 2
before spraying on coated white paper stock.After the lacquers
of 3.7 to 4.9 m /L (150 to 200 ft /gal) for complete covering
2 2
are dry they are compared with photographic reference stan-
and 4.9 to 7.35 m /L (200 to 300 ft /gal) for scatter coat
dards to determine the particle size.
application. After the sprayed lacquer is thoroughly dry,
determine the particle size on the panel by comparing it to the
4. Significance and Use
photographic reference standards.
4.1 This test method provides a uniform nomenclature for
8. Precision and Bias
the producer and user in the identification of the various
particle sizes used in the manufacture of nitrocellulose-type
8.1 Precision:
multicolor lacquers.
8.1.1 Thistestmethodentailstheuseofvisualjudgmentand
as such does not readil
...

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SCOPE
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