ASTM D450-96(2006)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 450 – 96 (Reapproved 2006)
Standard Specification for
Coal-Tar Pitch Used in Roofing, Dampproofing, and
Waterproofing
This standard is issued under the fixed designation D 450; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3. Classification
1.1 This specification covers three types of coal-tar pitch 3.1 Coal-tar pitches covered by this specification include
suitable for use in the construction of built-up roofing, damp- three types:
proofing, and membrane waterproofing systems. 3.1.1 Type I—Suitable for use in built-up roofing, damp-
1.2 The values stated in SI units are to be regarded as the proofing, and membrane waterproofing systems.
standard. The values in parentheses are for information only 3.1.2 Type II—Suitable for use in dampproofing and in
membrane waterproofing systems.
2. Referenced Documents
3.1.3 Type III—Suitable for use in built-up roofing, damp-
2.1 ASTM Standards:
proofing, and membrane waterproofing systems, but having
D4 Test Method for Bitumen Content less volatile components than Type I or II.
D20 Test Method for Distillation of Road Tars
4. Materials and Manufacture
D36 Test Method for Softening Point of Bitumen (Ring-
and-Ball Apparatus) 4.1 Coal-tar pitch shall be prepared from selected crudes
D70 Test Method for Density of Semi-Solid Bituminous using suitable refining processes to conform to the applicable
Materials (Pycnometer Method) specifications.
D92 Test Method for Flash and Fire Points by Cleveland
5. Physical Requirements
Open Cup Tester
5.1 Coal-tar pitch shall be homogeneous and free of water.
D95 Test Method for Water in Petroleum Products and
5.2 Each type shall conform to the physical properties
Bituminous Materials by Distillation
D 140 Practice for Sampling Bituminous Materials prescribed in Table 1.
D 2398 Test Method for Softening Point of Bitumen in
6. Sampling and Test Methods
Ethylene Glycol (Ring-and-Ball)
6.1 Sample the material and determine the properties enu-
D 2415 Test Method for Ash in Coal Tar and Pitch
merated in this specification in accordance with the following
D 3461 Test Method for Softening Point of Asphalt and
methods:
Pitch (Mettler Cup-and-Ball Method)
6.1.1 Sampling—Practice D 140.
6.1.2 Water—Test MethodD95.
6.1.3 Specific Gravity—Test MethodD70.
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.03
6.1.4 Softening Point—Test Method D36 or D 3461.In
on Surfacing and Bituminous Materials for Membrane Waterproofing and Built-Up
cases where a disagreement exists between the purchaser and
Roofing.
the seller, Test Method D36 shall be used as the referee
Current edition approved June 15, 2006. Published June 2006. Originally
e1
method.
approved in 1937. Last previous edition approved in 2000 as D 450 – 96(2000) .
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1.5 Flash Point—Test MethodD92.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1.6 Pitch Soluble in Carbon Disulfide—Test MethodD4.
Standards volume information, refer to the standard’s Document Summary page on
6.1.
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