1.1 这些测试方法测量鞋类对可能导致伤害的各种危险的抵抗力。 1.2 这些测试方法可用于测试是否符合既定安全标准中的最低性能要求。 1.2.1 根据买方和供应商之间的协议，或根据既定安全标准的要求，这些测试方法可用于确定以下任何一项或全部: 1. 抗冲击性（I）， 2. 抗压性（C）， 3. 跖骨抗冲击性（Mt）， 4. 导电电阻（Cd）， 5. 抗电危险性（EH）， 6. 静态耗散性能（SD），以及 7. 穿刺阻力（PR）。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 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制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 这些测试方法包含以下方面的鞋类性能评估要求: 4.1.1 鞋类脚趾区域的抗冲击性（I）， 4.1.2 鞋的脚趾区域的抗压性（C）， 4.1.3 跖骨保护，其减少了脚部顶部的跖骨受伤的机会（Mt）， 4.1.4 减少静电积聚可能造成的危险并减少爆炸物和挥发性化学物质（Cd）点燃的可能性的导电特性， 4.1.5 意外踩到带电电线时保护佩戴者的电气危险（EH）， 4.1.6 静电耗散特性，以减少由静电积聚引起的危险，其中存在与带电电路（SD）意外接触的潜在风险， 4.1.7 防穿刺鞋类装置（PR）。 4.2 对安全脚趾鞋的原始部件的任何更改，如更换或添加售后鞋垫/插入物，都可能导致不符合本标准的任何或所有部分，从而导致ASTM标签无效。防护脚趾鞋样品或样品应重新测试是否有以下任何变化。 4. 2.1 用于制造防护鞋头的材料发生变化，防护鞋头制造商发生变化，鞋头设计发生变化。 4.2.2 用于制造鞋类的施工方法的变更或鞋类生产工厂的变更。 4.2.3 鞋面或鞋垫材料厚度的变化大于25%。 4.2.4 外底或中底的变化，包括硬度。 4.2.5 鞋类制造中使用的鞋头形状的变化。 4.2.6 防护鞋垫的材料或供应商发生变化。 4.2.7 met-guard的材料或供应商发生变化。

1.1 These test methods measure the resistance of footwear to a variety of hazards that can potentially result in injury. 1.2 These test methods may be used to test for compliance to minimum performance requirements in established safety standards. 1.2.1 By agreement between the purchaser and the supplier, or as required by established safety standards, these test methods can be used to determine any one, or all of the following: (1) impact resistance (I), (2) compression resistance (C), (3) metatarsal impact resistance (Mt), (4) resistance to electrical conductivity (Cd), (5) resistance to electric hazard (EH), (6) static dissipative performance (SD), and (7) puncture resistance (PR). 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 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. 1.5 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 ====== 4.1 These test methods contain requirements to evaluate the performance of footwear for the following: 4.1.1 Impact resistance for the toe area of footwear (I), 4.1.2 Compression resistance for the toe area of footwear (C), 4.1.3 Metatarsal protection that reduces the chance of injury to the metatarsal bones at the top of the foot (Mt), 4.1.4 Conductive properties which reduce hazards that may result from static electricity buildup, and reduce the possibility of ignition of explosives and volatile chemicals (Cd), 4.1.5 Electric hazard to protect the wearer when accidentally stepping on live electric wires (EH), 4.1.6 Static dissipative properties to reduce hazards that result from a build up of static charge where there is an underlying risk of accidental contact with live electrical circuits (SD), 4.1.7 Puncture resistance footwear devices (PR). 4.2 Any changes to the original components of safety toe footwear such as replacing or adding after-market footbeds/inserts could cause non-compliance to any or all parts of this standard rendering the ASTM label invalid. Protective toe footwear specimens or samples shall be retested for any of the following changes. 4.2.1 Change in material used to make protective toe cap, change in protective cap manufacturer, change in the design of the toe cap. 4.2.2 Change in construction method used to make footwear or change in factory in which footwear is produced. 4.2.3 Change in the upper or insole material thickness greater than 25 %. 4.2.4 Change in the out sole or midsole, including its hardness. 4.2.5 Change in shape of last used in the manufacturing of footwear. 4.2.6 Change in material or supplier of protective insole. 4.2.7 Change in material or supplier of met guard.