ASTM D450

This specification covers the testing and physical requirements of two types of coal-tar pitch suitable for use in the construction of built-up roofing, dampproofing, and membrane waterproofing systems. The coal-tar pitch shall be prepared from selected crudes using suitable refining processes, and shall be homogeneous and free of water. Materials shall be sampled, tested, and conform to properties such as water content, specific gravity, ring-and-ball softening point, Cleveland open cup flash point, solubility in carbon disulfide, ash content, and distillation (total distillates and residue).

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers two types of coal-tar pitch suitable for use in the construction of built-up roofing, dampproofing, and membrane waterproofing systems.

1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only

2. Referenced Documents

D140 Practice for Sampling Bituminous Materials
D20 Test Method for Distillation of Road Tars
D2398 Test Method for Softening Point of Bitumen in Ethylene Glycol (Ring-and-Ball)
D2415 Test Method for Ash in Coal Tar and Pitch
D3461 Test Method for Softening Point of Asphalt and Pitch (Mettler Cup-and-Ball Method)
D36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D4 Test Method for Bitumen Content
D70 Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method)
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation

Index Terms

built-up; coal tar; dampproofing; roofing; waterproofing; ICS Number Code 91.100.50; 91.100.50

Citing ASTM Standards

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