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ASTM F MEASUREMENT PROCEDURE. FOR FALL ACCIDENT INJURY CRITERIA. Macky KATO1, Yoshie SHIMODAIRA2, Takeshi SATO3 and Hiromi. specification for playground surfacing performance (ASTM F). The most common misconception stems from the thought that if a playground surfacing. F, the voluntary standard for measuring impact attenuation of can meet the impact attenuation requirements of ASTM F, as long.

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The correction value to be asrm to the temporal score can be estimated by the transformation equation as follows. Awareness of the risk of fall accidents is one of the most important lessons for protecting them from hazardous situations. They can be added to the value measured by the shortened procedure.

The standard is specific to surfacing used in conjunction with playground equipment. The values given in parentheses are mathematical conversions to Adtm units that are provided for information only and are not considered standard.

In addition, many have been arguing growth plate fractures are permanently debilitating even though the ASTM F This research project should be a multi-disciplined effort.

Evaluating Playground Surfacing System for Compliance with Performance Standards

The difference between the scores of the both procedures also increased with drop height. These can be used to ensure that inspections are in compliance with the manufacturerssurfacing specifications. The phases of measuring the temperature on the surface are also similar. What if any serious injuries have we reduced over the past 30 years? Figure 4 shows the results of regression analysis for G-max axtm the standardized and shortened procedures.

Evaluating Playground Surfacing System for Compliance with Performance Standards

When one of them reaches their respective limit, the injury has the potential to become a fatal one. This study was supported by Japan Park Facilitate Association.

The waves on the sand have two peaks because there were two types of impacts. Transformation equitation to estimate evaluation scores Figure 6 shows the coefficient difference of the regression equation for G-max and the HIC between the standardized and f192 procedures.


In lieu of the increase in long bone fractures to children ages 5 through 12 the question has been raised as to whether a lower g-Max and HIC threshold would significantly eliminate serious temporary and long term head injuries and concussions as well has reduce the number of long bone fractures. Generally, acceleration at the impact point is dependent on maximum speed. Further research is needed to determine the appropriateness of the current peak g criterion satm the CPSC guidelines.

These facilities are expected asstm our ASTM Standards to meet minimum performance requirements throughout the life of the playground. Difference between the two procedures As shown in Fig.

For more than 30 years the U. If it is not f129 to all the standards it will be argued the injury may not have occurred. However, children are more likely than elderly people to fall from tall structures, especially from playground equipment such as slides, climbing frames and swings. Therefore, measures toward minimizing the risk of fall accident injuries are required. The scope of ASTM F establishes minimum performance requirements for the xstm attenuation of playground surfacing materials installed within the use zone of playground equipment.

One possible procedure is the use of checklists. In addition, Sand has also been tested as another attenuation material for ff1292 playgrounds. All these variables can have a profound impact on the type and severity of impact injuries to children.

The surfaces at the impact point were the bare ground or loose fill surface. Japan Ministry of Health, Labour and Welfare.

The protective surface system manufacturer shall provide detailed written inspection, maintenance, and repair instructions to the owner of the system. The shortened procedure is as follows: The following apparatus shall be required for implementation of the two test methods: In the conventional wisdom within the industry was that most available loose-fill compacted surface systems at a minimum depth of 12 inches would result in a fall impact that would well bellow the current thresholds at a fall of 10 feet or less.


Some have concluded because of incomplete data or incomplete gathering of pertinent information related to this analysis that only by reducing the fall height can there be any significant reduction of injuries from falls. Therefore, playground equipment should be structured to maintain safety, even when children fall from it. The Access Board has stated they would consider performance test comparisons of the ashm accessible route and use zones between the laboratory ASTM F test results and field test value results utilizing the Rotational Penetrometer Test Method after the surface system final installation process was certified in writing.

It is probably a combination of ast of these factors.

Is it a lack of maintenance? CPSC did recognize the different relationships between G-Max and HIC and decided to utilize both measures in the development of a performance standard and test method for fall-related playground injuries. On the contrary, that for the HIC tends to decrease as sand depth increases. The variation of the coefficient differences of the regression line for G-max between the two procedures, which are shown in Fig.

All playground areas and equipment should be inspected for excessive wear, deterioration, and any potential hazards, such as those shown in Table 3 Specifically Problems with surfacing i. Thus, F can be considered reliable. For example, adding loose fill materials on the ground, which is an effective countermeasure, could keep them safe. While HIC is related to atm injury, the use of g forces has been more closely related to other types of impact injuries such as long bone fractures. Figure 5 shows the result of regression analysis for the HIC of the standardized and shortened procedures.