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ASTM International Subcommittee D01.23 on Physical Properties of Applied Paint Films has approved three new standards that each deal with different types of measurements for paint coatings. Subcommittee D01.23 is under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications. Titles and descriptions of each new standard follow. , D 6991, Test Method for Internal Stresses in Organic Coatings by Cantilever (Beam) Method, Test Method D 6991 covers the procedure for measuring internal stresses in organic coatings by using the cantilever (beam) method. The test method can be used to determine the internal stresses in coatings after they have cured. Most organic coatings shrink when they cure. This induces an internal stress in the coatings. If the substrate is flexible, such as a vinyl composition tile, and has…, D 7091, Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Nonferrous Metals, The development of D 7091 is the result of subcommittee discussions on the need to revise or replace D 1186, Test Method for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous Base, and D 1400, Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a Nonferrous Metal Base. Rather than revising or…, D 7187, Test Method Measuring Mechanical Aspects of Scratch/Mar Behavior of Paint Coatings by Nanoscratching, Test Method D 7187 determines the resistance to mar and scratch of paint coatings on smooth, flat surfaces. The standard, which had its origin in a paper presented by Li Lin, DuPont, at the 2002 Committee D01 Centennial symposium on new directions in coatings performance technology, is a possible solution to recent searches within the automotive industry for a better way to measure the scratch…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…
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A new test method developed by ASTM International Committee C01 on Cement provides information about the behavior of cement that can be used in the process of selecting cementing materials for specific applications. The standard, C 1608, Test Method for Chemical Shrinkage of Hydraulic Cement Pastes, is under the jurisdiction of Subcommittee C01.31 on Volume Change. Test Method C 1608 was…
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ASTM International Task Group D01.42.20 is soliciting participants to conduct a round robin to evaluate the precision of ASTM standard D 4446, Test Method for Anti-Swelling Effectiveness of Water-Repellent Formulations and Differential Swelling of Untreated Wood When Exposed to Liquid Water Environments. This standard is commonly known as the wood swellometer test and is widely used by…