ASTM E23-23a,Standard Test Methods For Notched Bar Impact Testing Of Metallic Materials 金属材料的缺口棒冲击试验的标准试验方法. These test methods describe notche...
ASME B94.3-1965 (R1972) pdf download - Straight Cut-Off Blades for Lathes and Screw Machines 车床和螺杆机用直切刀片 This standardASME B94.3-1965 covers Straight Cut-Off B...
ASME PTC 20.2-1965 pdf download - Overspeed Trip Systems for Steam Turbin-Generator Units 汽轮发电机组超速跳闸系统 This Code is applicable to steam turbine-generator uni...
NFPA 88B-1973 pdf download - Standard for Repair Garages 维修车库 1-1 Purpose.The intent of this standard is to set forth fireprotection standards for garages used for major rep...
IEC 60601-1-9:2013 pdf download, Medical electrical equipment Part 1-9: General requirements for basic safety and essential performance Collateral Standard: Requirements for environ...
IEC 60601-1-8:2020 pdf download,Medical electrical equipment - Part 1-8: General requirements for basic safety and essential performance - Collateral Standard: General requirements,...
ASHRAE Guideline 42-2023 pdf download - Enhanced Indoor Air Quality In Commercial And Institutional Buildings. 提高商业和机构建筑的室内空气质量 1.PURPOSE 1.1 The pur...
IEC-60601-1-6:2013 pdf download,Medical electrical equipment - Part 1-6:General requirements for basic safety and essential performance Collateral standard:Usability. 医用电气设备...
IEC 60601-1-3:2013 pdf download, Medical electrical equipment Part 1-3: General requirements for basic safety and essential performance Collateral Standard: Radiation protection in ...
IEC 60601-1-2:2014 pdf download,Medical Electrical Equipment Part 1-2: General Requirements for Basic Safety and Essential Performance Collateral Standard: Electromagnetic Disturban...
