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More effective quality testing of the synthetic, hollow filaments that are often used in the manufacture of lower cost paintbrushes is the purpose of a new standard approved by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. The new standard, ASTM D7233 , Test Method for Testing Fracture of Level Paintbrush Filaments, was developed by Subcommittee D01.…
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The wettability of a particular solid coating, substrate or pigment on a surface is a key to its effectiveness, as wetting is important to adhesion as well as to the prevention of surface defects such as craters, dewetting and crawling. A new ASTM International standard uses contact angle measurements to determine the wettability of coatings. The new standard, D7490 , Test Method for Measurement…
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Producers of fluorocarbons are invited to join in the ongoing standards developing activities of ASTM International Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents. The committee has recently approved a new standard, ASTM D7509 , Specification for Fluorocarbon Feedstock Grade Chloroform, under the jurisdiction of Subcommittee D26.08 on Halogenated Organics Used as…
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By necessity, paint used for roadway applications needs to dry quickly. Some multi-component traffic paints cure in less than 10 minutes, some much faster. Because of this speed of curing, these traffic paints and other types of fast-cure (less than 10 minutes) multi-component paints cannot be tested for volatile content using procedures outlined in the ASTM International standard typically used…
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Honeycomb ceramics, porous with linear hollow channels, are being used worldwide in automotive catalytic converters and as diesel particulate filters for trucks. Flexural testing of this type of ceramics is addressed in a new ASTM International standard, ASTM C1674 , Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient…
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Two new standards demonstrate the broad range of practices and test methods currently being developed by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. The new ASTM standards will be used in the realms of color reproduction and contact angle measurement. Achieving Consistent Color Reproduction Developed by Subcommittee D01.56 on Printing Inks, ASTM…
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New Advanced Ceramics Standards from ASTM Cover Fracture Mirror Size Analysis, Tensile Strength DataSubcommittee C28.01 on Mechanical Properties and Performance, part of ASTM International Committee C28 on Advanced Ceramics, has recently approved two new standards, ASTM C1678 , Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses, and ASTM C1683 , Practice for Size Scaling of Tensile Strengths Using Weibull Statistics for Advanced Ceramics., ASTM C1678 —Bringing Consistency to Fracture Mirror Size Analysis, Fracture mirror size analysis is a powerful quantitative tool for the interpretation of broken ceramic and glass articles. While this type of analysis can be used to determine the stress in a part at the instant of fracture, inspection and interpretation procedures have often varied, resulting in uncertainty in stress estimates. ASTM C1678, Practice for Fractographic Analysis of Fracture Mirror…, ASTM C1683 —Scaling Strength Values, ASTM C1683, Practice for Size Scaling of Tensile Strength Using Weibull Statistics for Advanced Ceramics, provides methodology to convert fracture strength parameters estimated from data obtained with one test geometry to strength parameters representing other test geometries. Stephen Duffy, chair of civil engineering, Cleveland State University, and C28 member, says that companies producing…
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ASTM Committee D01 on Paint and Related Coatings, Materials and Applications will present a technical seminar, “New Solvents and Formulating Techniques for Low VOC and HAP Paints,” on Sunday, June 15, 2008, from 4 to 6 p.m., at the Hyatt Regency Hotel in Vancouver, British Columbia, Canada. The seminar will be held in conjunction with the D01 committee meeting to be held June 15-18 in Vancouver…
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Finding a way to accurately measure the water and volatile content of high baked phenolic coatings has led to the development of a new ASTM International standard, D 7245 , Test Method for Measuring Total Water and Volatiles in Liquid Coatings Which Produce Cure Water Upon Heating. The new standard was developed by Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials, part of…
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Ceramic and glass companies, as well as universities and government laboratories, will be the primary users of a new ASTM standard that allows for the flexural strength determination of components made in a round shape or after finish machining with minimal waste. The standard, ASTM C1684 , Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature-Cylindrical Rod Strength, was…