1.1 本规范规定了安装在运动场设备使用区域内的运动场表面材料冲击衰减的最低性能要求。 1.2 本规范适用于与操场设备一起使用的路面，如规范中所述 第148页 , 第1487页 , 2018年 、CSAZ614（加拿大）和SS457（新加坡）。 1.3 本规范规定了操场表面材料的冲击衰减性能标准；表示为临界坠落高度。 1.4 本规范规定了在实验室条件下确定操场表面材料临界坠落高度的程序。 表面必须进行实验室测试，以符合本规范的要求。 1.5 本规范要求的实验室试验涉及干表面材料的性能。 1.6 本规范还提供了确定湿或冻试验条件下临界跌落高度的可选程序。 1.7 在实验室条件下确定的操场铺面材料的临界坠落高度未考虑可能影响已安装铺面材料实际性能的重要因素。已知影响表面材料性能的因素包括但不限于老化、水分、维护、暴露于极端温度（例如，冻结）、暴露于紫外线、其他材料污染、压实、厚度损失、收缩、浸入水中等。 1.8 本规范中制定的冲击衰减规范和试验方法针对头部受伤风险。只有有限的证据表明，遵守本规范的要求可以降低其他严重伤害（例如，长骨骨折）的风险。 注1: 死亡和不同程度的头部损伤的相对风险可使用 附录X1 ，显示了碰撞的头部伤害标准（HIC）分数与头部受伤概率之间的关系。 1.9 本规范仅涉及操场表面材料的冲击衰减特性，不涉及导致坠落的其他因素- 相关伤害。虽然人们认为，遵守本规范的要求将降低因跌倒而造成的严重伤害和死亡的风险，但遵守本规范并不能防止所有伤害和死亡。 1.10 以英寸-磅单位表示的值应视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 1.11 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.12 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 6.1 本规范的目的是确定操场表面材料的最小冲击衰减要求，以降低跌倒造成严重头部受伤的风险。 6.2 本规范提供了量化操场铺面材料冲击衰减性能的统一方法，并适当用于比较不同操场铺面材料的相对性能。 6.3 本规范将作为规定操场表面材料冲击衰减性能的参考。 6.4 结合冲击测试分数与头部受伤相关的数据，本规范应用产生的信息适用于评估因跌倒导致严重头部受伤的相对风险。

1.1 This specification establishes minimum performance requirements for the impact attenuation of playground surfacing materials installed within the use zone of playground equipment. 1.2 This specification is specific to surfacing used in conjunction with playground equipment, such as that described in Specifications F1148 , F1487 , F1918 , CSAZ614 (Canada), and SS457 (Singapore). 1.3 This specification establishes an impact attenuation performance criterion for playground surfacing materials; expressed as a critical fall height. 1.4 This specification establishes procedures for determining the critical fall height of playground surfacing materials under laboratory conditions. The laboratory test is mandatory for surfaces to conform to the requirements of this specification. 1.5 The laboratory test required by this specification addresses the performance of dry surfacing materials. 1.6 This specification also provides optional procedures to determine the critical fall height under wet or frozen test conditions, or both. 1.7 The critical fall height of a playground surfacing material determined under laboratory conditions does not account for important factors that have the potential to influence the actual performance of installed surfacing materials. Factors that are known to affect surfacing material performance include but are not limited to aging, moisture, maintenance, exposure to temperature extremes (for example, freezing), exposure to ultraviolet light, contamination with other materials, compaction, loss of thickness, shrinkage, submersion in water, and so forth. 1.8 The impact attenuation specification and test methods established in this specification are specific to the risk of head injury. There is only limited evidence that conformance with the requirements of this specification reduces the risk of other kinds of serious injury (for example, long bone fractures). Note 1: The relative risk of fatality and of different degrees of head injury may be estimated using the information in Appendix X1 , which shows the relationships between the Head Injury Criterion (HIC) scores of an impact and the probability of head injury. 1.9 This specification relates only to the impact attenuation properties of playground surfacing materials and does not address other factors that contribute to fall-related injuries. While it is believed that conformance with the requirements of this specification will reduce the risk of serious injury and death from falls, adherence to this specification will not prevent all injuries and deaths. 1.10 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.11 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.12 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 6.1 The purpose of this specification is to establish minimum impact attenuation requirements for playground surfacing materials in order to reduce the risk of severe head injury from falls. 6.2 This specification provides a uniform means of quantifying the impact attenuation performance of playground surfacing materials and is appropriately used to compare the relative performance of different playground surfacing materials. 6.3 This specification is to be used as a reference for specifying the impact attenuation performance of playground surfacing materials. 6.4 In combination with data relating impact test scores to head injury, the information generated by application of this specification is suitable to estimate the relative risk of a severe head injury due to a fall.