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NBN-EN 148-3-1992 5000 Respiratory protective devices Threads for facepieces Thread connection M 45 x 3《呼吸防护装置 面罩连接用螺纹 螺纹连接M 45 x 3》.pdf

NBN-EN 149-1991 1875 Respiratory protective devices - Filtering half masks to protect against particles - Requirements testing marking《呼吸防护装置 防护微粒的过滤半遮面罩要求；试验；标示》.pdf

NBN-EN 153-1991 0625 Methods of measuring the energy consumption ot electric mains operated household refrigerators frozen food storage cabinets food freezers and their combination电.pdf

NBN-EN 154-1992 9375 Ceramic tiles - Determination of resistance to surface abrasion - Glazed tiles《瓷砖 抗表面腐蚀的测量（釉面砖）》.pdf

NBN-EN 155-1992 0625 Ceramic tiles - Determination of moisture expansion using boiling water - Unglazed tiles《瓷砖 用热水的湿膨胀测量（无釉砖）》.pdf

NBN-EN 159-1992 8750 Dust-pressed ceramic tiles with water absorption E 10 % - Group Bill《具有吸水率E 10%的干压陶瓷砖（Bill组）》.pdf

NBN-EN 161-1993 1250 Automatic shutt-off valves for gas burners and gas appliances《用于煤气灶和煤气用具的自动关闭阀门》.pdf

NBN-EN 163-1992 0000 Ceramic tiles - Sampling and basis for acceptance《瓷砖 抽样和验收条件》.pdf

NBN-EN 169-1993 3125 Personal eye-protection Filters for welding and related techniques Transmittance requirements and recommended utilisation《个人眼睛防护 焊接及其相关技术用滤光镜 透射率要求和推荐使用》.pdf