ASTM D1712-09(2020)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1712 −09 (Reapproved 2020)
Standard Practice for
Resistance of Plastics to Sulfide Staining
This standard is issued under the fixed designation D1712; 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 solid, or gas. Examples of materials that may cause sulfide
stains are rubber, industrial fumes, foods, kraft paper, etc. This
1.1 This practice covers the determination of the resistance
practice provides a means of estimating the relative suscepti-
of plastics to staining in the presence of sulfides.
bility of plastic composition to sulfide staining.
1.2 The values stated in SI units are to be regarded as the
standard.
5. Reagent
1.3 This standard does not purport to address all of the
5.1 Hydrogen Sulfide Solution—A freshly prepared satu-
safety concerns, if any, associated with its use. It is the
rated solution of hydrogen sulfide (Caution, see Section 6).
responsibility of the user of this standard to establish appro-
Prepare the solution by rapidly bubbling hydrogen sulfide gas
priate safety, health, and environmental practices and deter-
(Note 2) through water. Five minutes of bubbling is sufficient
mine the applicability of regulatory limitations prior to use.
for 100 to 150 mL of water at room temperature (approxi-
For specific precaution statements, see Section 6.
mately 23°C).
NOTE 1—There is no known ISO equivalent to this standard.
NOTE 2—Hydrogen sulfide gas may be obtained commercially as
1.4 This international standard was developed in accor-
compressed gas in cylinders.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
6. Precautions
Development of International Standards, Guides and Recom-
6.1 Hydrogen sulfide is a highly toxic gas and must be
mendations issued by the World Trade Organization Technical
handled only in a suitably ventilated area such as a hood.Avoid
Barriers to Trade (TBT) Committee.
breathing of vapors.
2. Referenced Documents
7. Sampling
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
7.1 Sampling shall be in accordance with the pertinent
D883 Terminology Relating to Plastics
material specification or as agreed to by customer and client.
3. Terminology
8. Test Specimens
3.1 Definitions—For definitions of terms used in this
8.1 Test specimens shall be representative of the particular
practice, refer to Terminology D883.
plastic composition being tested. Size and shape of test
4. Significance and Use specimens are relatively unimportant. Specimens 100 6 25
mm (4 6 1 in.) in length by 13 6 6 mm (0.5 6 0.25 in.) in
4.1 Plastic compositions containing salts of lead, cadmium,
width by the thickness of the composition being tested, have
copper, antimony, and certain other metals (as stabilizers,
been found suitable for this test.
pigments, driers, or fillers) may stain due to the formation of a
metallic sulfide when in contact with external materials that
9. Conditioning
contain sulfide. The external sulfide source may be liquid,
9.1 Conditioning—Condition the test specimens at 23 6
1 2°C (73.4 6 3.6°F) and 50 6 10 % relative humidity for not
This practice is under the jurisdiction ofASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.50 on Durability of Plastics. less than 40 h prior to test in accordance with Procedure A of
Current edition approved July 1, 2020. Published July 2020. Originally approved
Practice D618 for those tests where conditioning is required. In
in 1960. Last previous edition approved in 2014 as D1712 – 09(2014). DOI:
cases of disagreement, the tolerances shall be 61°C (61.8°F)
10.1520/D1712-09R20.
and 65 % relative humidity.
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