Home>ASTM Standards>ASTM D1370-12(R2021) pdf free download

ASTM D1370-12(R2021) pdf free download

ASTM D1370-12(R2021) pdf free download.Standard Test Method for Contact Compatibility Between Asphaltic Materials (Oliensis Test)
1. Scope
1.1 This test method provides a means for evaluating contact compatibility between asphaltic materials. It is gener- ally used to determine compatibility between the saturant and coating used in the manufacture of prepared roofings. 2 Coating and saturant will be referred to, but comparable asphaltic materials may be tested where this test procedure seems applicable. 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 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. Summary of Test Method
3.1 A small drop of molten saturant is placed on the freshly talced surface ofthe coating, and compatibility is judged by the degree to which an oily ring develops in the talc surrounding the drop. 2
4. Significance and Use
4.1 This test method assesses the degree to which asphalts interact with one another. It can indicate possible future problems, especially blistering, in a roofing product if incom- patible asphalts are in contact in the product.
5. Apparatus
5.1 Container, lid of85-g [3-oz] ointment box, or equivalent container. 5.2 Analytical Balance, having an accuracy of 61.0 mg. 5.3 Sieve, 45 µm (No. 325). Detailed requirements for these sieves are given in Specification E11. 5.4 Dropping Device, a fine wire 1.0 mm [0.04 in.] in diameter. 5.5 Oven, constant-temperature, capable of maintaining the test temperature within 61.0 °C [61.8 °F]. 5.6 Small Scale, graduated in 0.1-mm divisions. 5.7 Magnifying Glass or Stereo Microscope, approximate minimum of 4×. 5.8 Talc, pure, of the soapstone variety, ground so that at least 70 % passes the 45-µm (No. 325) sieve, and oven-dried at 110 °C [230 °F]. N OTE 1—When this test method is being used in purchase specifications, both the purchaser and the seller shall use the same talc. Talc from Luzenac America, Inc. 4 has been found to be suitable for this test.
6. Procedure
6.1 Melt a portion of the coating at the minimum tempera- ture required to render it fluid, stirring with the fine wire to eliminate bubbles, and pour it into the clean 85-g [3-oz] tin lid to a thickness of 3.0 to 6.0 mm [ 1 ⁄ 8 to 1 ⁄ 4 in.]. Pour carefully, so as to provide a substantially smooth surface free ofbubbles and other surface blemishes. After the coating material has cooled, determine the weight and surface area of the filled container. 6.2 Make a preliminary dusting of talc by covering the coating surface with talc and removing the excess, nonadherent dust by inverting the container and dropping it approximately 25 mm [1 in.] onto the table top. 6.3 Make a final application of talc through the 45-µm (No. 325) sieve, held 20 to 25 mm [ 3 ⁄ 4 to 1 in.] above the surface of the coating, by gently shaking or tapping the sieve until a smooth, uniform film of talc, weighing 0.004 g 6 10 % per square centimeter, has been applied. 6.4 Place three drops of molten saturant, each about 3.0 6 0.5 mm [ 1 ⁄ 8 6 1 ⁄ 64 in.] in diameter, on the talced surface of the coating. Form the drops by plunging the wire into the molten saturant and, after the excess has drained off, allowing suitably sized drops to fall on the talc from a sufficient height to form substantially spherical drops.

Maybe you like

Standards Tags