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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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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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ASTM International Committee A01 on Steel, Stainless Steel and Related Alloys invites interested parties to participate in a revision and update of ASTM standard E 527 , Practice for Numbering Metals and Alloys (UNS). The standard is under the jurisdiction of the Committee A01 editorial subcommittee A01.91. E 527 provides the basis for the practice of the Unified Numbering System for all major…
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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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ASTM International Subcommittee A01.19 on Sheet and Strip Steel has made three significant changes to ASTM standards under its jurisdiction. The changes are: • Reporting of boron levels made mandatory; • Changes to size limitations of general requirements and product standards for hot rolled material; and • Addition of grades 90 and 100 for hot rolled sheet and strip products. Subcommittee A01.19…, Boron Reporting, Boron is often added to low carbon steels to achieve lower hardness and increased formability; however, the mechanical properties of cold reduced and annealed material produced from hot rolled coils containing boron are affected by its presence. The differences may or may not be desired, but the effects are important and cold rolled steel manufacturers need to be informed of the presence of…, Size Limitation Changes, The general requirements for hot rolled sheet and strip products are spelled out in Standards A 568/A 568M , Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low Alloy, Hot-Rolled and Cold-Rolled, General Requirements for, and A 635/A 635M , Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy…, Ultra-High Strength Steel Grades, ASTM standards A 1011/A 1011M and A 1018/A 1018M were changed to include grades with 90 and 100 ksi [620 and 690 MPa] minimum yield strength. These grades have the designation ultra-high strength (UHSS) as a way to differentiate them from the high strength low alloy with improved formability (HSLAS-F) designation. The UHSS grades may achieve their high strength by some measure of transformation…
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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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The new online "Passport to Steel" now available from ASTM International provides the latest data on more than 50,000 steels with the ability to find comparable worldwide steel standards from organizations around the globe. Several search options, including product forms and alloy groups, make it easy to find needed information quickly. In addition, a Reference Center provides additional related…
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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…
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Most standard hardness tests for steel, including the Brinell, Vickers and various Rockwell tests, are generally classified as bench testers. This means that the component being tested needs to be taken to the machine for hardness to be determined. In order to test larger pieces, such as forgings, a section would need to be removed from the forging in order for it to be tested. Since this is not…
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ASTM International Subcommittee F04.35 has recently undergone a name change. Formerly known as F04.35 on GI Endoscopes, the subcommittee, which is under the jurisdiction of Committee F04 on Medical and Surgical Materials and Devices, is now known as Gastroenterolgy (GI). The name change indicates a broadening of the scope of activities for the subcommittee. James Bardwell, Leading Medical…