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Technical advancements in both tissue engineering and bone substitute materials have resulted in a great increase in the number of tissue-engineered medical products available on the market. Many of these new products are mineral-based, often using calcium phosphate scaffolds. While there are some general standards on scaffolds in tissue-engineered medical products, a comprehensive standard on…
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Interested parties are invited to participate in the ongoing development of a proposed new standard, WK15543 , Test Method for Determining Fatigue Failure of Compacted Asphalt Concrete Subjected to Repeated Flexural Bending. The proposed standard is being developed by Subcommittee D04.26 on Fundamental/Mechanistic Tests, which is part of ASTM International Committee D04 on Road and Paving…
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ASTM International Committee F04 on Medical and Surgical Materials and Devices is developing a proposed new standard that will help the medical device industry with the measurement and reporting of vascular stent radial stiffness and strength. The proposed standard, WK15227 , Test Methods for Radial Stiffness and Strength of Balloon Expandable Stents, is under the jurisdiction of Subcommittee F04…
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Two new standards have recently been approved by ASTM International Committee D04 on Road and Paving Materials. The standards, both of which are under the jurisdiction of Subcommittee D04.26 on Fundamental/Mechanistic Tests, are D 6931 , Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, and D 7312 , Test Method for Determining the Permanent Shear Strain and Complex Shear…, ASTM D 6931, Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, The withdrawal of D 4123 , Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures, led to the development of D 6931 , since D 4123 contained a description of an indirect tensile strength test that was referred to in several other standards. It was decided to develop this test into a completely separate standard, D 6931, to stand on its own merit as a method that…, ASTM D 7312, Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST), According to Rebecca McDaniel, technical director, North Central Superpave Center, and leader of the D 7312 task group, Superpave is a system for designing asphalt mixtures to ensure that the right asphalt binder and aggregate structure is used for the traffic and climate where it will be placed on the road. To facilitate the implementation of Superpave, the Federal Highway Administration…
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A project originally intended to develop a uniform template for the language within a series of standards has resulted in the approval of a new standard, B 949 , Specification for General Requirements for Zinc and Zinc Alloy Products. The new standard is under the jurisdiction of Subcommittee B02.04 on Zinc and Cadmium, which is part of ASTM International Committee B02 on Nonferrous Metals and…
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Understanding how blood within a human body will interact with any substance with which it comes in contact is a crucial part of any medical process. A new practice recently approved by ASTM International Committee F04 on Medical and Surgical Materials and Devices is one of a series of standards that evaluates the complement activating properties of solid materials intended for use in contact…
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A new ASTM International standard will provide paving contactors and producers with instructions for preparing cold mix asphalt samples for testing. The standard, D 7229 , Test Method for Preparation and Determination of the Bulk Specific Gravity of Dense-Graded Cold Mix Asphalt (CMA) Specimens by Means of the Superpave Gyratory Compactor, was developed by Subcommittee D04.27 on Cold Mix Asphalts…
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A new standard, developed by ASTM International Committee F04 on Medical and Surgical Materials and Devices, establishes performance requirements for single-use, enteral feeding devices with retention balloons. These devices are used by medical professionals to provide nutrition or administer medication to patients through a natural orifice (nasal, oral, transluminal) or through a surgically…
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Crimped wire termination connections are very common in electrical goods, including small and large appliances, heaters, power tools and ride-on toys. However, these items often fail when crimped wire termination connectors are improperly manufactured or inappropriately used. These failures often result in financial losses for the product user and/or manufacturer, as well as safety issues that…
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ASTM International Committee F04 on Medical and Surgical Materials and Devices is now developing a proposed new standard, WK8619, Test Method for the Measurement of Crystallinity and Melting Point of Ultra High Molecular Weight Polyethylene via Differential Scanning Calorimetry. The proposed test method, under the jurisdiction of Subcommittee F04.15 on Material Test Methods, will focus on the…