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Minor head injuries among soccer players are more common than have been previously recognized, according to a series of recent studies. In one such study conducted by McGill University, it was found that more than 60 percent of college soccer players surveyed had concussion symptoms over the course of a single year. Another study by the National Institutes of Health estimated that 90 percent of…
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ASTM International Committee C24 on Building Seals and Sealants is currently working to fill a need for a weatherproofing sealant field test standard. The result, proposed standard WK7800, Guide for a Non-Destructive, Continuous, Field Test of Installed Weatherproofing Sealant, features a field test that has been used by sealant professionals for years, but has not, up to this point, been…
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ASTM Committee F08 on Sports Equipment and Facilities has developed a new standard that establishes requirements for the information that is permanently affixed to backpacking and mountaineering tents and bivy sacks. The requirements included in standard F 2441, Practice for Labeling of Backpacking and Mountaineering Tents and Bivy Sacks, significantly expand on the information now required for…
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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 Committee C24 on Building Seals and Sealants is now working on a proposed new standard, WK6920, Fatigue Resistance of Structural Silicone. The standard, which is under the jurisdiction of ASTM Subcommittee C24.20 on General Sealant Standards, is intended to serve as an enhancement to current performance requirements for structural silicones and to help users ascertain that…
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In the past, the only measurement used to determine whether sealants could endure a great deal of foot traffic was hardness. Because research presented at symposia and from the field has shown that other factors need to be considered in the design and use of traffic sealants, ASTM International Committee C24 on Building Seals and Sealants has a new proposed standard that encompasses a wider range…
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ASTM International Committee F08 on Sports Equipment and Facilities has developed a new standard, F 2416, Specification for Protective Headgear Used in Electric Personal Assistive Mobility Devices (EPAMDs). The new standard, which is under the jurisdiction of Subcommittee F08.53 on Headgear and Helmets, covers headgear to be worn by people riding Segway Human Transporters (HTs) and other EPAMDs…