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ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications, has approved two new standards that cover architectural coating touch-up properties and ink stainblocking of paint systems. Both new standards are under the jurisdiction of Subcommittee D01.42 on Architectural Coatings., Touch-Up Properties, When a home is being constructed, paints are subjected to a wide variety of drying conditions, which can lead to differences in appearance between the original coat and subsequent touch-up areas after the paint has fully cured. A new standard, ASTM D7489 , Practice for Evaluating Touch-Up Properties of Architectural Coatings Under Various Environmental Conditions, covers variations in color,…, Ink Stainblocking, Paint companies and raw material suppliers will be able to use a new ASTM standard to assess the capability of architectural coatings for blocking ink stains from bleeding through to a topcoat. The standard, ASTM D7514 , Test Method for Evaluating Ink Stainblocking of Architectural Paint Systems by Visual Assessment, represents a compilation and synthesis of methods that are currently being used…
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ASTM International Committee B01 on Electrical Conductors has approved a new standard for tin-coated annealed copper wire. The standard, B965 , Specification for High Performance Tin-Coated Annealed Copper Wire Intended for Electrical and Electronic Application for Solderability, was developed by Subcommittee B01.04 on Conductors of Copper and Copper Alloys . Stephen Childers, process engineer,…
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The main purpose of any grounding product is to provide a low-resistance path for fault currents to follow to the ground, which will ultimately protect the integrity of the power system and maintain a safe operating environment. ASTM International Committee B01 on Electrical Conductors is developing a proposed new standard to annealed concentric-lay-stranded copper-clad steel conductors. While…
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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 new ASTM International standards for steel core wire will be useful in providing transmission cable that will make the most of the existing infrastructure in gaining electrical transmission efficiency. “The products in these standards allow electrical utilities and transmission cable designers more flexibility to increase electrical transmission capacity with minimal investments,” says Dale…
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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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All interested parties are encouraged to participate in the development of a proposed new ASTM International standard, WK20460 , Specification for High Performance Tinned Coated Annealed Copper Wire Intended for Electrical and Electronic Application for Solderability. The proposed standard is being developed by Subcommittee B01.04 on Conductors of Copper and Copper Alloys, which is part of ASTM…