Home>ASTM Standards>ASTM D450-07(R2018) pdf free download

ASTM D450-07(R2018) pdf free download

ASTM D450-07(R2018) pdf free download.Standard Specification for Coal-Tar Pitch Used in Roofing, Dampproofing, and Waterproofing
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 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 non-conformance with the standard. 1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Classification
3.1 Coal-tar pitches covered by this specification include two types: 3.1.1 Type I—Suitable for use in built-up roofing, dampproofing, and membrane waterproofing systems. 3.1.2 Type II—Suitable for use in dampproofing and in membrane waterproofing systems.
4. Materials and Manufacture
4.1 Coal-tar pitch shall be prepared from selected crudes using suitable refining processes to conform to the applicable specifications.
5. Physical Requirements
5.1 Coal-tar pitch shall be homogeneous and free of water. 5.2 Each type shall conform to the physical properties prescribed in Table 1.
6. Sampling and Test Methods
6.1 Sample the material and determine the properties enu- merated in this specification in accordance with the following methods: 6.1.1 Sampling—Practice D140/D140M. 6.1.2 Water—Test Method D95. 6.1.3 Specific Gravity—Test Method D70. 6.1.4 Softening Point—Test Method D36/D36M or D3461. In cases where a disagreement exists between the purchaser and the seller, Test Method D36/D36M shall be used as the referee method. 6.1.5 Flash Point—Test Method D92. 6.1.6 Pitch Soluble in Carbon Disulfide—Test Method D4.
7. Inspection and Certification
7.1 Inspection and certification of the material shall be as agreed upon between the purchaser and the seller. Specific requirements shall be made part of the purchase contract.
8. Rejection and Rehearing
8.1 If the results of any test do not conform to the require- ments of this specification, retesting to determine conformity shall be permitted to be performed as agreed upon between the purchaser and the seller.
9. Packaging and Package Marking
9.1 The material shall be suitably packaged to permit acceptance by the carrier and to afford adequate protection from the normal hazards of handling and shipment. 9.2 Unless otherwise agreed upon between the supplier and purchaser, each container or bill of lading on bulk shipments shall be plainly marked with the name and brand of the manufacturer or seller, the ASTM designation, flash point, and equiviscous temperature (EVT) for application.
10. Keywords
10.1 built-up; coal tar; dampproofing; roofing; waterproof- ing

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