GB/T 17830-1999 聚乙氧基化非离子表面活性剂中聚乙二醇含量的测定高效液相色谱法
GB/T 17830-1999.Determination of polyethylene glycol in polyethoxylated nonionic...
国家标准2023.07.19
GB/T 17830-1999.Determination of polyethylene glycol in polyethoxylated nonionic...
国家标准2023.07.19
GB/T 17831-1999.Non-ionic surface active agents-Determination of sulfated ash- G...
国家标准2023.07.19
GB/T 17832 一1999.Determination of silver in silver jewellery alloys-V olumetric...
国家标准2023.07.19
GB/T 18043-2000.Precious metal jewellery content non-damaged test method-X-ray f...
国家标准2023.07.19
GB/T 21198.1-2007.Determination of precious metals in precious metals jewellery...
国家标准2023.07.19
GB/T 21656-2008/IEC 61231: 1999.International lamp coding system (ILCOS).1范围和目的G...
国家标准2023.07.19
GB/T 22148-2008/CISPR 30:2001.Test method on electromagnetic emissions from elec...
国家标准2023.07.19
GB/T 22731-2008.Fragrance compound.1范围GB/T 22731规定了日用香精的术语和定义要求.试验方法、检验规则及标志、包装、...
国家标准2023.07.19
GB/T 22783-2008.Determination of essential parameters of potassium nitrate for u...
国家标准2023.07.19
GB/T 22787-2008.Determination of essential parameters of cryolite for use in fir...
国家标准2023.07.19