ASTM D2203-01(2023)

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: D2203 − 01 (Reapproved 2023)
Standard Test Method for
Staining from Sealants
This standard is issued under the fixed designation D2203; 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. Significance and Use
4.1 Staining of a building is an aesthetically undesirable
1.1 This test method covers a laboratory procedure for
occurrence. This test method evaluates the likelihood of a
determining whether a sample of sealant will cause staining of
sealant causing an early stain on a porous substrate, when the
the substrate when in the contact with masonry, concrete, or
stain is caused by gross exudation from the sealant. This test
stone (marble, limestone, sandstone, granite, etc.).
method does not predict staining caused by other factors.
1.2 The values stated in SI (metric) units are to be regarded
4.2 See also Test Method C510.
as the standard. The values given in parentheses are provided
for information only.
5. Apparatus and Materials
1.3 This standard does not purport to address all of the
5.1 Convection Oven, having a temperature controlled at
safety concerns, if any, associated with its use. It is the
104.5 6 3 °C (220 6 5 °F).
responsibility of the user of this standard to establish appro-
3 3
5.2 Brass Ring, 19 mm ( ⁄4 in.) inside diameter, 19 mm ( ⁄4
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. in.) high, walls at one end beveled to a minimum diameter.
5.3 Filter Paper, ten sheets, high-grade, rapid, qualitative 9
NOTE 1—Currently there is no ISO standard similar to this test method.
cm in diameter.
1.4 This international standard was developed in accor-
5.4 Aluminum Foil, household-type, 25.4 mm (1 in.) square.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.5 Weight, 300-g.
Development of International Standards, Guides and Recom-
5.6 Spatula, small, thin, steel.
mendations issued by the World Trade Organization Technical
5.7 Glass Plate, at least 100 by 100 mm (4 by 4 in.).
Barriers to Trade (TBT) Committee.
5.8 Desiccator, with drying agent.
2. Referenced Documents
6. Sampling
2.1 ASTM Standards:
6.1 Take the test specimen from a previously unopened
C510 Test Method for Staining and Color Change of Single-
container and thoroughly mix before using, if required for
or Multicomponent Joint Sealants
homogeneity.
C717 Terminology of Building Seals and Sealants
7. Conditioning
3. Terminology
7.1 Condition the sample in a closed container for at least 5
3.1 Definitions—Refer to Terminology C717 for definitions
h at 23 6 2 °C (73.4 6 3.6 °F).
of the following terms used in this test method: compound,
sealant, substrate.
8. Procedure
8.1 Dry the filter papers for 5 to 8 h in an oven maintained
at 104.5 6 3 °C (220 6 5.4 °F). At the end of the drying
This test method is under the jurisdiction of ASTM Committee C24 on Building
period, remove from the oven and store in a desiccator until
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
cool.
General Test Methods.
Current edition approved Jan. 1, 2023. Published February 2023. Originally
8.2 Remove ten filter papers from the desiccator, staple
approved in 1963. Last previous edition approved in 2018 as D2203 – 01(2018).
them together, and place them on a glass plate. Set the brass
DOI: 10.1520/D2203-01R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on This test method is based on the use of Whatman No. 1 filter paper,
the ASTM website. manufactured by Whatman, Inc., 9 Bridewell Place, Clifton, NJ 07073.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2203 − 01 (2023)
ring with beveled edge down on the center of the filter papers. 10. Report
Fill the ring flush with thoroughly mixed sealant, taking care to
10.1 Standard Procedure—Report the following informa-
incorporate as little air as possible with the compound. Place a
tion:
25.4-mm (1-in.) square piece of aluminum foil on top of the
10.1.1 Width of stain,
ring, and the 300-g weight on top of that.
10.1.2 Number of papers stained, and
8.3 Allow the filled ring to stand for 72 h at 23 6 2 °C (73.4 10.1.3 Stain index.
6 3.6 °F). Then slide a spatula under the brass ring and remove
10.2 Alternative Procedure—Report the following informa-
the ring and compound. Hold the top filter paper up to the light
tion:
with a glass plat
...