ASTM D8464/D8464M-23

Standard Specification for Cold-Applied Coal Tar for Roofing, Waterproofing, and Dampproofing

SCOPE
1.1 This specification covers a mixture of processed coal tar base with or without mineral fillers or polymer modification suitable for brush, spray, and squeegee application to coal tar built-up and coal tar modified bitumen membrane roofing, flashings, dampproofing, insulations, and waterproofing.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 7, of this specification: 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.  
1.4 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

• Status: Published
• Publication Date: 28-Feb-2023
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.05 - Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing

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: D8464/D8464M − 23
Standard Specification for
Cold-Applied Coal Tar for Roofing, Waterproofing, and
1
Dampproofing
This standard is issued under the fixed designation D8464/D8464M; 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 stabilizers, or polymer modification or both, excluding asbestos
fiber, mixed to a smooth, uniform consistency suitable for
1.1 This specification covers a mixture of processed coal tar
application by squeegee, three-knot brush, or by spraying.
base with or without mineral fillers or polymer modification
suitable for brush, spray, and squeegee application to coal tar
4. Composition
built-up and coal tar modified bitumen membrane roofing,
flashings, dampproofing, insulations, and waterproofing.
4.1 Cold-applied coal tar liquid complying with this speci-
fication shall conform to the following composition limits:
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in min max
Water content, % . . . 2.5
each system may not be exact equivalents; therefore, each
Nonvolatile content, % 50 . . .
system shall be used independently of the other. Combining
Mineral and/or other stabilizers . . . 20
values from the two systems may result in nonconformance
with the standard.
5. Physical Requirements
1.3 The following precautionary caveat pertains only to the
5.1 Uniformity—After a thoroughly stirred sample has stood
test method portion, Section 7, of this specification: This
for 72 h at room temperature 23 6 2 °C [73.4 6 3.6 °F] in a
standard does not purport to address all of the safety concerns,
closed container, it shall show no separation of solvent or
if any, associated with its use. It is the responsibility of the user
settling that cannot be overcome by moderate stirring.
of this standard to establish appropriate safety, health, and
5.2 Consistency—The coal tar liquid shall be of a consis-
environmental practices and determine the applicability of
tency that will spread readily and permit application by
regulatory limitations prior to use.
2
squeegee, three-knot brush, or spray at the rate of 1.25 m /L
1.4 This international standard was developed in accor-
2
[50 ft /gal] on prepared roofing, saturated felt, and metal
dance with internationally recognized principles on standard-
surfaces at ambient temperatures above 10 °C [50 °F]. Consis-
ization established in the Decision on Principles for the
tency (Brookfield) at 25 °C [77 °F] No. 3 spindle at 20 RPM
Development of International Standards, Guides and Recom-
shall be between 15 000 and 19 000 CPS.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
6. Sampling
2. Referenced Documents
6.1 See Section 4 on Sampling of Test Methods D6511/
2
2.1 ASTM Standards:
D6511M.
D6511/D6511M Test Methods for Solvent Bearing Bitumi-
nous
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