ASTM C777-04(2014)
(Test Method)Standard Test Method for Sulfide Resistance of Ceramic Decorations on Glass
Standard Test Method for Sulfide Resistance of Ceramic Decorations on Glass
ABSTRACT
This test method covers the qualitative determination of the sulfide resistance of ceramic decorations on glass to assure the necessary durability of the decoration. The decorated ware should be representative of the lot, or run, and should be taken in accordance with the prescribed principles. The preparations of the test solution are presented in details. The procedures for testing the sulfide resistance of ceramic decorations on glass are presented. The decoration on the test specimen and reference standard are graded in accordance with one of the following visual test grades: grade V1, grade V2, grade V3, grade V4, and grade V5. If stain exists, the decoration on the test specimen and reference standard are graded in accordance with one of the following physical test grades: grade P1, grade P2, and grade P3.
SCOPE
1.1 This test method covers the qualitative determination of the sulfide resistance of ceramic decorations on glass to assure the necessary durability of the decoration.
1.2 This test method provides an indication of performance when and if the decorations are exposed to sulfide attack.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
1.5 This test method generates hydrogen sulfide gas which is highly poisonous.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C777 −04 (Reapproved 2014)
Standard Test Method for
Sulfide Resistance of Ceramic Decorations on Glass
This standard is issued under the fixed designation C777; 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 4.3 Hot Plate.
1.1 This test method covers the qualitative determination of 4.4 Pipet.
the sulfide resistance of ceramic decorations on glass to assure
4.5 Fume Hood, or other means of adequately exhausting
the necessary durability of the decoration.
H S produced during the test.
1.2 This test method provides an indication of performance
5. Reagents
when and if the decorations are exposed to sulfide attack.
5.1 Sodium Sulfide (Na S·9H O), reagent grade.
2 2
1.3 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
5.2 Acetic Acid (CH COOH, min 99.8 %), reagent grade.
standard.
6. Test Specimen
1.4 This standard does not purport to address all of the
6.1 The decorated ware should be representative of the lot,
safety concerns, if any, associated with its use. It is the
or run, and should be taken in accordance with the principles
responsibility of the user of this standard to establish appro-
stated in Practice C224.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6.2 Standard reference ware of known resistance must be
1.5 This test method generates hydrogen sulfide gas which
run with each test.
is highly poisonous.
7. Preparation of Test Solution
2. Referenced Documents
7.1 Make a 4 % volume acetic acid solution by adding to
2.1 ASTM Standards:
each 96 mL of distilled water 4 mL of acetic acid.
C224 Practice for Sampling Glass Containers
7.2 Dissolve an excess amount of sodium sulfide in warm
(35 to 40°C) distilled water. Make sure there is undissolved
3. Summary of Test Method
sodium sulfide left over. Cool to room temperature.
3.1 One half of the specimens are immersed in a volume
7.3 Stir into each 100 mL of the 4 % acetic acid solution 1
4 % acetic acid solution that contains 1 mLof saturated sodium
mL of saturated, clear, sodium sulfide solution for 2 or 3 min.
sulfide solution per each 100 mL of the acetic acid solution in
A milk of sulfur will precipitate.
a suitable covered container at room temperature. The degree
of attack is determined by visual observation and physical
8. Procedure
testing of the specimen exposed to a hydrogen sulfide atmo-
8.1 Place the test specimens and the reference standard of
sphere.
known resistance into the test solution prepared according to
4. Apparatus
7.3 at room temperature so that only half of the decoration is
immersed. Stir and cover.
4.1 Suitable Covered Container .
8.2 Removespecimensfromsolutionafter15minandallow
4.2 Stirrer.
to air dry.
8.3 Note the degree of attack after 15 min by visual
This test method is under the jurisdiction of ASTM Committee C14 on Glass
observation and grade.
and Glass Products, and was written by Subcommittee C14.10 on Glass Decoration
in cooperation with the Society of Glass Decorator’s Committee A-20.
8.4 Retain a duplicate piece of ware of each decoration
Current edition approved May 1, 2014. Published May 2014. Originally
under test without exposure as an aid in judging the degree of
approved in 1974. Last previous edition approved in 2009 as C777 – 04 (2009).
DOI: 10.152
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