Home / Standards / GB/T 45548-2025 GB/T 45548-2025 Active Determination of isotope abundance of deuterated reagents—Nuclear magnetic resonance spectroscopy 氘代试剂同位素丰度的测定 核磁共振波谱法 Standard Type GBT ICS 07.080 CCS A40 Status 现行 Issue Date 2025-04-25 Implementation 2025-04-25 Responsible Dept 国家标准委 Drafting Unit N/A