NC 19-04-27-1985 Occupational Hygiene and Safety Standards System Safety Helmets General Technical Requirements and Testing Methods《职业卫生和安全标准系统 安全帽 一般技术要求和测试方法》.pdf

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SIS 88 24 32 E-1967 In the event of any differences in interpretation of this standard the Swedish version shall take precedence over this translation 《道路行驶安全帽 测试方法》.pdf

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ASTM F1446-2015b Standard Test Methods for Equipment and Procedures Used in Evaluating the Performance Characteristics of Protective Headgear《使用设备和规程评估防护安全帽性能特征的标准试验方法》.pdf

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