ASTM D6419-99

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Designation: D 6419 – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
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Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Test Method for
Volatile Content of Non-Heatset Web Offset Printing Inks
This standard is issued under the fixed designation D 6419; 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 EPA Reference Method 24 - Determination of Volatile
Matter Content, Density, Volume Solids, and Weight
1.1 This test method describes a procedure for determina-
Solids of Surface Coatings
tion of the weight percent volatile content of non-heatset web
offset printing inks. Test specimens are heated at 110° 6 1°C
3. Summary of Test Method
for 60 min.
3.1 A specimen size of 0.300 6 0.001 g is weighed into an
1.2 This test method is also applicable to non-heatset web
aluminum foil dish, dispersed in 3 mL of toluene, and heated in
offset printing ink vehicles. It is not applicable to ultra-violet
an oven at 110 6 1°C for 60 min. The percent volatile is
(UV) or electron beam cured materials, which must be cured
calculated from the loss in weight.
by exposure to UV light or an electron beam as part of the test
for volatile content.
4. Significance and Use
NOTE 1—Vehicle is the liquid portion of the printing ink. Any substance
4.1 This test method is the procedure of choice for deter-
that is dissolved in the liquid portion of the ink is a part of the vehicle.
mining volatile content of non-heatset web offset inks. This
1.3 This test method is based on Test Method D 2369, in information is useful to the ink manufacturer and user and to
which the allowable ranges are 6 0.1g for specimen weight
environmental interests as part of the determination of the mass
and 6 5°C for oven temperature. Interlaboratory studies have of volatile organic compounds emitted from the ink.
shown that specimen weight and oven temperature must both
NOTE 2—Since these inks do not contain water or any materials
be more tightly controlled in order to improve the precision of
currently classified by US EPA as negligibly photochemically reactive
test results for non-heatset web-offset inks. Such inks contain a
(exempt solvents), volatile organic compound content is the same as
wide range of high boiling hydrocarbons and often have a
volatile content. The volatile organic compounds in these inks are high
volatile content below 20 %. boiling hydrocarbon oils which are, according to US EPA guidelines, 95 %
retained in the printed substrate or oxidized into the ink film. Therefore,
1.4 This standard does not purport to address all of the
the mass of volatile organic compound emitted from the ink would be
safety concerns, if any, associated with its use. It is the
calculated as only 5 % of the volatile organic compound content of the ink
responsibility of the user of this standard to establish appro-
as derived from the results of this test method.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
5. Apparatus
hazard statement see Note 5.
5.1 Aluminum Foil Dishes, 58 mm in diameter by 18 mm
high with a smooth (planar) bottom surface. Precondition the
2. Referenced Documents
dishes for 30 min. in an oven at 110 6 1°C and store in a
2.1 ASTM Standards:
desiccator prior to use. Use tongs or rubber gloves or both, to
D 2369 Test Method for Volatile Content of Coatings
handle the dishes.
D 362 Specification for Industrial Grade Toluene
5.2 Desiccator, equipped with a general purpose desiccant
E 145 Specification for Gravity-Convection and Forced-
such as anhydrous calcium sulfate.
Ventilation Ovens
5.3 Forced Draft Oven, Type IIA or Type IIB as specified in
E 691 Practice for Conducting an Interlaboratory Study to
Specification E 145.
Determine the Precision of a Test Method
NOTE 3—Be sure the shelves are level.
2.2 Other Standards:
5.4 Ink Knives or Taper Knives, suitable for transferring the
small specimen from the original sample container to the
aluminum dish.
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
and Related Coatings, Materials, and Applications and is the direct responsibility of
5.5 Paper Clips, bent for use as stirrers. Precondition the
Subcommittee D01.56 on Printing Inks.
bent paper clips along with the aluminum foil dishes, as
Current edition approved May 10, 1999. Published July 1999.
described in 5.1.
Annual Book of ASTM
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