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Flow characteristics of fine metal powders are important in filling dies for pressing of powder metallurgy compacts, which are later sintered and sometimes machined into finished parts. The flow rate, as measured by a new ASTM standard, determines the flow necessary for a precise quantity of powder to be introduced into the die. The new standard, B964 , Test Methods for Flow Rate of Metal Powders…
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Traffic paint plays an important role in maintaining the safety of roads. Subcommittee D01.44 on Traffic Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications, is currently working on two proposed new standards covering the sampling of waterborne traffic paint and glass bead gradation measurement., WATERBORNE TRAFFIC PAINT, Ensuring that traffic paint taken from the field is tested properly in laboratories is a concern of paint suppliers as well as private testing laboratories, Department of Transportation labs, DOT striping crews and striping contractors. A proposed new ASTM standard, ASTM WK22312 , Practice for Drum and Tote Sampling of Waterborne Traffic Paint, addresses laboratory sampling issues. According to…, GRADATION OF GLASS BEADS, Glass beads added to traffic paint during manufacturing are necessary to ensure paint retroreflectivity, especially at night. A proposed new standard, ASTM WK23758 , Test Method for Measuring Gradation of Glass Beads Using a Flowing Stream Digital Image Analyzer, will be useful in the production and quality control of glass beads. “Digital camera technology combined with high speed computers has…
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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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Two recently approved ASTM International standards provide user-friendly tests for properties of sintered metallurgy products. The new standards, developed by Subcommittee B09.04 on Bearings, are ASTM B962 , Test Methods for Density of Compacted or Sintered Power Metallurgy (PM) Products Using Archimedes’ Principle, and ASTM B963 , Test Methods for Oil Content, Oil-Impregnation Efficiency and…
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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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New ASTM Committee E58 to Develop Standards That Support Engineering Investigations and Assist the Court, ASTM International, one of the largest voluntary standards development organizations (SDO) in the world, today announced the formation of ASTM Committee E58 on Forensic Engineering . Committee E58 will develop standards that promote awareness of the scientific, engineering, ethical and legal considerations inherent in forensic engineering investigations, reporting and testimony., Bringing Engineering Reason to the Dispute Resolution Process, Forensic engineering focuses on the investigation of alleged defects in materials, products, structures and components. These cases are litigated on the premise that the defects cause personal injury or damage to property. Forensic engineering investigations may help determine the causes of these events and assist the disputing parties or the court in resolving the case. Today, forensic…, Assisting the Court through Consensus Standards, ASTM Committee E58 comes together to create important standards and guides that will support the judicial process by facilitating an improved understanding of forensic engineering practices and associated technical issues. This will better enable the court to resolve disputes in a more well-informed and efficient manner, relying on deeper knowledge of the technical data presented and the sound…, E58 Standards: Guiding Forensic Engineering Practice, E58 standards will help guide forensic engineers in conducting investigations in a robust manner while protecting overall public safety. The initial scope of Committee E58 activities will be driven by subcommittees on Product Defect Incidents, Vehicular Incidents, Electrical Incidents and Industrial Processes. ASTM Committee E58 will build upon the body of work of former subcommittee E30.05 on…, Foundation Standard for the Forensic Engineering Profession, Other E58 standards will bolster the role of forensic engineering professionals in the eyes of the court and other users of these services. Consistent with this objective, Committee E58 has recently drafted a general practice document for the forensic engineering profession, titled Standard Guide for the Practice of Forensic Engineering. The goal of this standard is to further educate the court…
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The use of rolling devices can provide a means to evaluate the adhesion of weather seals, for quality control in new installations, general evaluation of existing installations, and the investigation of water and air leakage through building enclosures. In order to better facilitate the use of rolling devices, ASTM International Committee C24 on Building Seals and Sealants is developing a…
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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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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…