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GB/T 24513.1-2009
金属和合金的腐蚀 室内大气低腐蚀性分类 第1部分:室内大气腐蚀性的测定与评价
Corrosion of metals and alloys - Classification of low corrosivity of indoor atmospheres - Part 1: Determination and estimation of indoor corrosivity
GB/T 24574-2009
Test methods for photoluminescence analysis of single crystal silicon for III-V impurities
GB/T 24575-2009
Test method for measuring surface sodium,aluminum,potassium,and iron on silicon and epi substrates by secondary ion mass spectrometry
GB 19510.8-2009
Lamp controlgear - Part 8: Particular requirements for d.c. supplied electronic ballasts for emergency lighting
GB 19510.9-2009
Lamp controlgear - Part 9: Particular requirements for ballasts for fluorescent lamps
GB/T 9649.29-2009
Terminology classification and code of geology and mineral resources - Part 29: Geochemistry exploration
GB/T 23807-2009
Fine ceramics (advanced ceramics, advanced technical ceramics) - Classification systemecification