ASTM C772-03(2019)
(Test Method)Standard Test Method for Oil Migration or Plasticizer Bleed-Out of Preformed Tape Sealants
Standard Test Method for Oil Migration or Plasticizer Bleed-Out of Preformed Tape Sealants
SIGNIFICANCE AND USE
5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in a variety of sealing applications. In general, oil migration or plasticizer bleed-out is not desirable. However, in some limited instances, a controlled amount of plasticizer migration is sometimes desired in order to improve the penetration of the tape into the interstices of porous substrates. This test method is designed to indicate whether or not a preformed tape sealant exhibits oil or plasticizer migration and, if so, to what extent.
SCOPE
1.1 This test method covers a laboratory procedure that can be used to determine the oil migration or plasticizer bleed-out of preformed tape sealants.
1.2 The values stated in acceptable metric units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The subcommittee with jurisdiction is not aware of any similar ISO 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
General Information
Relations
Standards Content (Sample)
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: C772 − 03 (Reapproved 2019)
Standard Test Method for
Oil Migration or Plasticizer Bleed-Out of Preformed Tape
Sealants
This standard is issued under the fixed designation C772; 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. Summary of Test Method
1.1 This test method covers a laboratory procedure that can 4.1 The preformed tape sealant to be tested is placed on
be used to determine the oil migration or plasticizer bleed-out filter paper. The specimen is heat aged and examined for
of preformed tape sealants. migration into the filter paper.
1.2 The values stated in acceptable metric units are to be
5. Significance and Use
regarded as the standard. The values given in parentheses are
5.1 Preformed tape sealants are tacky, deformable solids
for information only.
that are used under compression between two substrates in a
1.3 The subcommittee with jurisdiction is not aware of any
variety of sealing applications. In general, oil migration or
similar ISO standard.
plasticizer bleed-out is not desirable. However, in some limited
1.4 This standard does not purport to address all of the
instances, a controlled amount of plasticizer migration is
safety concerns, if any, associated with its use. It is the
sometimes desired in order to improve the penetration of the
responsibility of the user of this standard to establish appro-
tape into the interstices of porous substrates. This test method
priate safety, health, and environmental practices and deter-
is designed to indicate whether or not a preformed tape sealant
mine the applicability of regulatory limitations prior to use.
exhibits oil or plasticizer migration and, if so, to what extent.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
6. Apparatus
ization established in the Decision on Principles for the
6.1 Vented Air Circulating Oven, that complies with Speci-
Development of International Standards, Guides and Recom-
ficationE145andiscapableofagingsamplesat70 62°C(158
mendations issued by the World Trade Organization Technical
6 3.6°F) or 100 6 2°C (212 6 3.6°F).
Barriers to Trade (TBT) Committee.
6.2 Filter Paper, sixsheets,high-grade,rapid,76mm(3in.)
2. Referenced Documents
in diameter.
2.1 ASTM Standards:
6.3 Weight, 1 kg (2.2 lb).
C717 Terminology of Building Seals and Sealants
D2203 Test Method for Staining from Sealants
7. Sampling
E145 Specification for Gravity-Convection and Forced-
7.1 Select a fresh roll of preformed tape sealant at least 13
Ventilation Ovens
mm (0.5 in.) wide and 3 mm (0.125 in.) thick. Remove a
section of preformed tape sealant approximately 61 cm (2 ft)
3. Terminology
long from the roll and discard it.
3.1 Definitions—Thedefinitionsofthefollowingtermsused
in this test method are found in Terminology C717: preformed
8. Test Specimens
tape sealant, sealant.
8.1 Prepareduplicatetestspecimensbycuttingshortlengths
of preformed tape sealant with the release paper still in place
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
and plying them together to form a solid pad having the
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
General Test Methods.
Current edition approved May 1, 2019. Published May 2019. Originally
approvedin1974.Lastpreviouseditionapprovedin2014asC772 – 03(2014).DOI: This test method was based on the use of Whatman No. 1 filter paper. The sole
10.1520/C0772-03R19. source of supply of the apparatus known to the committee at this time is Whatman
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