Search
Advanced search
Filter by category
Filter by committee
Search results
-
Hydrogels are highly hydrated polymer networks that can be used in the regenerative medicine field as “scaffolding” for the repair of tissue. A proposed new ASTM standard will provide those working in regenerative medicine with a means of characterizing hydrogels. The work item, ASTM WK21927 , Guide for Characterization of Hydrogels Used in Regenerative Medicine, is under the jurisdiction of…
-
ASTM Pervious Concrete Subcommittee Developing Proposed Standard for Sustainable Mixture ProportionsOnce approved, a proposed new ASTM standard will aid concrete producers in developing sustainable and durable mixture proportions for pervious concrete. The proposed new standard, WK23367 , Test Method for Evaluating the Surface Durability Potential of a Pervious Concrete Mixture, is being developed by Subcommittee C09.49 on Pervious Concrete, part of ASTM International Committee C09 on Concrete…
-
A proposed new ASTM International standard, ASTM WK22233 , Test Method for Indication of Concrete’s Ionic Conductivity, describes a five-minute nondestructive test that has the potential to replace a destructive six-hour test requiring several hours of preparation time. The proposed standard is being developed by Subcommittee C09.66 on Concrete’s Resistance to Fluid Penetration, part of ASTM…
-
Shrinkage that occurs during the drying process is a major cause of cracking in concrete. However, application of shrinkage-reducing admixtures in the field has been yielding positive results, and engineers have realized that admixtures can mitigate cracking. A new ASTM standard currently being developed by Subcommittee C09.23 on Chemical Admixtures will set minimum standards for an admixture to…
-
Each year, approximately 400,000 healthcare workers (HCW) in the United States suffer accidental injury from needles and other medical sharps while tending to patients. These injuries can result from injections, drips, infusions, blood-taking, surgery, biopsy and research, among other causes. Each of these accidents carries a small but documented risk of transmitting more than 60 blood-borne…
-
Because of its porous nature, pervious concrete cannot be tested using standards developed for traditional concrete. In order to fill this need, ASTM International Committee C09 on Concrete and Concrete Aggregates is developing a series of proposed test methods specific to pervious. The first of these proposed standards, ASTM C1688/C1688M , Test Method for Density and Void Content of Freshly…
-
Participation is welcome in a task group that is developing a proposed new ASTM International standard for manufacturers of vascular graft tissue engineered medical products. WK21657 , Guide for Characterization and Assessment of Vascular Graft Tissue Engineered Medical Products (TEMPs), is being developed by a task group under the jurisdiction of subcommittee F04.04 on Tissue Engineered Medical…
-
Two new calibration standards for use with X-ray fluorescence equipment in the chemical analysis of hydraulic cement are now available from the Cement and Concrete Reference Laboratory (CCRL). The new standards are designated Portland Cements 167 and 168 and are vacuum-sealed to prevent moisture uptake. Robin Haupt, supervisor, CCRL proficiency sample program, says that the two new cements were…
-
Subcommittees F04.41 - F04.46 , which deal with Tissue Engineered Medical Products (TEMPs), part of ASTM International Committee F04 on Medical and Surgical Materials and Devices, will meet Oct. 27-28 at the National Physical Laboratory in Teddington, United Kingdom. The meeting will focus on the ongoing development of several proposed TEMPs-related standards. Several TEMPS standards are…
-
A new ASTM International standard provides testing procedures for devices that can be used to treat spinal disorders while allowing for continued joint movement. The standard, ASTM F2624 , Test Method for Static, Dynamic and Wear Assessment of Extra-Discal Spinal Motion-Preserving Implants, was developed by Subcommittee F04.25 on Spinal Devices, part of ASTM International Committee F04 on Medical…