双折射晶体和偏振器件测试规范
Measurement specification for birefractance crystal and polarizer
检测标准
光纤色散测试仪技术条件
Specifications for optical fibre chromatic dispersion measuring set
林木良种审定规范
The standard of examination and approval of improved varieties of forest tree
绝缘材料电气强度试验方法 第3部分:1.2/50μs冲击试验补充要求
Insulating materials-Test methods for electric strength Part 3:Additional requirements for1.2/50 µs impulse tests
绝缘材料电气强度试验方法 第2部分:对应用直流电压试验的附加要求
Insulating materials-Test methods for electric strength-Part 2:Additional requirements for tests using direct voltage
绝缘材料电气强度试验方法 第1部分:工频下试验
Insulating materials-Test methods for electric strength-Part 1:Test at power frequencies
机械产品环境条件 高海拔
Environmental condition for machinery products-High altitude
机械产品环境条件 第2部分:寒冷
Environmental condition for machinery products-Part 2:Cold
机械产品环境条件第1部分:湿热
Environmental condition for machinery products-Part 1: Warm damp
机械产品环境参数分类及其严酷程度分级
Classification of environmental parameters andntheir severities for machinery products
