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ASTM C681-03

(Test Method)

Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds

Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds

SIGNIFICANCE AND USE
This test method provides a guide as to the amount of volatile matter that will be emitted from a channel glazing compound when tested by this test method.
SCOPE
1.1 This test method describes the determination of the volatility of oil- and resin-based, knife-grade, channel glazing compounds.
1.2 The values stated in inch-pound 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
09-May-2003
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.20 - General Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM C681-99 - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
Effective Date
10-May-2003
Replaced By
ASTM C681-03(2009) - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
Effective Date
01-Jan-2009
Referred By
ASTM C877-21 - Standard Specification for External Sealing Bands for Concrete Pipe, Manholes, and Precast Box Sections
Effective Date
10-May-2003
Referred By
ASTM C877M-21 - Standard Specification for External Sealing Bands for Concrete Pipe, Manholes, and Precast Box Sections (Metric)
Effective Date
10-May-2003
Referred By
ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
Effective Date
10-May-2003
Referred By
ASTM C771-14(2019) - Standard Test Method for Weight Loss After Heat Aging of Preformed Tape Sealants
Effective Date
10-May-2003
Referred By
ASTM C647-19 - Standard Guide to Properties and Tests of Mastics and Coating Finishes for Thermal Insulation
Effective Date
10-May-2003

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ASTM C681-03 - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing CompoundsASTM C681-03 - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
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ASTM C681-03 - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C681–03
Standard Test Method for
Volatility of Oil- and Resin-Based, Knife-Grade, Channel
1
Glazing Compounds
This standard is issued under the fixed designation C 681; 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 6. Apparatus
1.1 This test method describes the determination of the 6.1 Cabinet or Room, capable of maintaining a temperature
volatility of oil- and resin-based, knife-grade, channel glazing of 73.4 6 3.6°F (23 6 2°C) at 50 6 5 % relative humidity for
compounds. extended periods of time.
1.2 The values stated in inch-pound units are to be regarded 6.2 Forced-Draft Oven, capable of maintaining a tempera-
as the standard. The values given in parentheses are for ture of 220 6 5°F (104 6 3°C) for extended periods of time.
information only. 6.3 Dish, aluminum foil, 2.5 in. (64 mm) in diameter by
1.3 The subcommittee with jurisdiction is not aware of any 0.75 in. (19 mm) deep, with a flat bottom.
similar ISO standard. 6.4 Balance, laboratory analytical type.
1.4 This standard does not purport to address all of the 6.5 Steel Spatula or Putty Knife, with a blade about 4 in.
safety concerns, if any, associated with its use. It is the (102 mm) long and 0.75 in. (19 mm) wide.
responsibility of the user of this standard to establish appro- 6.6 Desiccator.
priate safety and health practices and determine the applica-
7. Procedure
bility of regulatory limitations prior to use.
7.1 Condition a sample of channel glazing compound in a
2. Referenced Documents
tightly closed container 24 h at 73.4 6 3.6°F (23 6 2°C) prior
2.1 ASTM Standards: to testing. Mix the channel glazing compound thoroughly with
2
C 717 Terminology of Building Seals and Sealants a spatula to ensure uniformity of the sample to be tested.
7.2 Weigh the aluminum foil dish to the nearest 0.01 g and
3. Terminology
record the tare weight.
3.1 Definitions—Refer toTerminology C 717 for definitions
7.3 Transfer approximately 3 to5gofthe compound into
of the following terms: glazing, compound. the tared aluminum foil dish, using the spatula, and spread the
3.2 Description of Term—Refer to Terminology C 717 for
compound uniformly over the bottom of the dish.
the description of the following term: channel. 7.4 Weigh the dish containing the compound quickly and
accurately to the nearest 0.01 g. Record the combined weight
4. Summary of Test Method
of the dish and the compound.
4.1 The channel glazing compound is placed into a tared
7.5 Place the dish containing the compound into an oven
aluminum dish and weighed. The test s
...

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5.1 It is known that solar radiation contributes to the degradation of sealants in exterior building joints. The use of a laboratory accelerated weathering machine with actinic radiation, moisture and heat appears to be a feasible means to give indications of early degradation by the appearance of sealant cracking. However, simulated weather factors in combination with extension may produce more severe degradation than weather factors only. Therefore, the effect of the weathering test is made more sensitive by the addition of the bending of the specimen at cold temperature.
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5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in a variety of sealing applications. This procedure is not intended to simulate an actual use condition, but it will give some indication of the flexibility and adhesion of a tape at low temperature. It can serve to differentiate between flexible tapes that can take some movement and those that tend to harden or embrittle on aging and crack or lose adhesion when flexed at low temperature. It will also aid in identifying sealants that have poor flexibility because they are overextended and contain a low level of binder as well as those sealants having binders that will embrittle at low temperature.
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